# Lanthanum boride \(99%\-La\) – Strem SDS

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- **Document title:** Lanthanum boride \(99%\-La\) – Strem SDS
- **Publisher:** Strem Chemicals, Inc\.
- **Material:** Lanthanum boride \(99%\-La\)
- **CAS number:** 12008\-21\-8
- **Product code / grade:** 93\-5735
- **Document type:** SDS
- **Original language:** English
- **Region:** United States
- **Revision date:** 07/21/2021
- **Page count:** 7
- **Original filename:** strem\-sd93\-5735\_us\.pdf
- **RESDS page:** https://resds\.com/document/lanthanum\-boride\-99\-la\-strem\-en\-3185f62b4c
- **Original PDF:** https://resds\.com/pdf/lanthanum\-boride\-99\-la\-strem\-en\-3185f62b4c\.pdf
- **Source URL:** https://sds\.strem\.com/sd93\-5735\_US\.pdf
- **Description:** Collected by RESDS\. Original publisher PDF retained\. Original Strem SDS for Lanthanum boride \(99%\-La\)\. Product number 93\-5735; revision 07/21/2021\. Publication authorized by the user on 2026\-09\-14\.

## Page 1

```text
                                                                                                  Page 1/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

             1 Identification

                                · Product name

                                · Trade name: Lanthanum boride (99%-La)

                                · Item number: 93-5735
                                · CAS Number:
                  12008-21-8
                                · EC number:
                  234-531-6

                                · Details of the supplier of the safety data sheet
                                · Manufacturer/Supplier:
                  Strem Chemicals, Inc.
                 7 Mulliken Way
              NEWBURYPORT, MA 01950
              USA
                  info@strem.com

                                · Information department: Technical Department
                                · Emergency telephone number:
              EMERGENCY: CHEMTREC: + 1 (800) 424-9300
                  During normal opening times: +1 (978) 499-1600


             2 Hazard(s) identification

                                · Classification of the substance or mixture
                 The substance is not classified according to the Globally Harmonized System (GHS).

                                · Label elements
                                · GHS label elements not applicable
                                · Hazard pictograms not applicable
                                · Signal word not applicable
                                · Hazard statements not applicable
                                · Precautionary statements
                P262          Do not get in eyes, on skin, or on clothing.
                P280           Wear protective gloves/protective clothing/eye protection/face protection.
               P305+P351+P338 If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present
                                 and easy to do. Continue rinsing.
                P304+P340      IF INHALED: Remove person to fresh air and keep comfortable for breathing.
                P403+P233       Store in a well-ventilated place. Keep container tightly closed.
                P501            Dispose of contents/container in accordance with local/regional/national/international
                                         regulations.
                                · Classification system:
                                · NFPA ratings (scale 0 - 4)

                               Health = 0
             0      Fire = 0
           0  0    Reactivity = 0

                                · HMIS-ratings (scale 0 - 4)

                   HEALTH     0  Health = 0
                      FIRE        0  Fire = 0
                     REACTIVITY 0  Reactivity = 0

                                · Other hazards
                                · Results of PBT and vPvB assessment
                                · PBT: Not applicable.
                                                                                                                                            (Contd. on page 2)
                                                                                                                                             US





44.1.1
```

## Page 2

```text
                                                                                                  Page 2/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)


                                                                                                                                            (Contd. of page 1)
                                · vPvB: Not applicable.


             3 Composition/information on ingredients

                                · Chemical characterization: Substances
                                · CAS No. Description
                  12008-21-8 Lanthanum boride (99%-La)
                                · Identification number(s)
                                · EC number: 234-531-6


             4 First-aid measures

                                · Description of first aid measures
                                · General information: No special measures required.
                                · After inhalation: Supply fresh air; consult doctor in case of complaints.
                                · After skin contact: Immediately rinse with water.
                                · After eye contact: Rinse opened eye for several minutes under running water. Then consult a doctor.
                                · After swallowing: If symptoms persist consult doctor.
                                · Information for doctor:
                                · Most important symptoms and effects, both acute and delayed No further relevant information available.
                                · Indication of any immediate medical attention and special treatment needed
               No further relevant information available.


             5 Fire-fighting measures

                                · Extinguishing media
                                · Suitable extinguishing agents: Use fire fighting measures that suit the environment.
                                · Special hazards arising from the substance or mixture No further relevant information available.
                                · Advice for firefighters
                                · Protective equipment: No special measures required.


             6 Accidental release measures

                                · Personal precautions, protective equipment and emergency procedures Not required.
                                · Environmental precautions: No special measures required.
                                · Methods and material for containment and cleaning up:
                  Dispose contaminated material as waste according to item 13.
                                · Reference to other sections
                  See Section 7 for information on safe handling.
                  See Section 8 for information on personal protection equipment.
                  See Section 13 for disposal information.
                                · Protective Action Criteria for Chemicals
                                · PAC-1:
                                                                                                   30 mg/m3

                                · PAC-2:
                                                                                                  330 mg/m3
                                                                                                                                            (Contd. on page 3)
                                                                                                                                             US





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```

## Page 3

```text
                                                                                                  Page 3/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)


                                                                                                                                            (Contd. of page 2)
                                · PAC-3:
                                                                                                           2,000 mg/m3


             7 Handling and storage

                                · Handling:
                                · Precautions for safe handling No special measures required.
                                · Information about protection against explosions and fires: No special measures required.

                                · Conditions for safe storage, including any incompatibilities
                                · Storage:
                                · Requirements to be met by storerooms and receptacles: No special requirements.
                                · Information about storage in one common storage facility: Not required.
                                · Further information about storage conditions: None.
                                · Specific end use(s) No further relevant information available.


             8 Exposure controls/personal protection

                                · Additional information about design of technical systems: No further data; see item 7.

                                · Control parameters
                                · Components with limit values that require monitoring at the workplace: Not required.
                                · Additional information: The lists that were valid during the creation were used as basis.

                                · Exposure controls
                                · Personal protective equipment:
                                · General protective and hygienic measures:
                 The usual precautionary measures for handling chemicals should be followed.
                                · Breathing equipment: Not required.
                                · Protection of hands:


                               Protective gloves  _S

                 The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
               Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the
                   chemical mixture.
                     Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
                                · Material of gloves
                 The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and
                     varies from manufacturer to manufacturer.
                                · Penetration time of glove material
                The exact break through time has to be found out by the manufacturer of the protective gloves and has to be
                    observed.
                                · Eye protection: Safety glasses
                                                                                                                                             US
                                                                                                                                            (Contd. on page 4)





44.1.1
```

## Page 4

```text
                                                                                                  Page 4/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)

                                                                                                                                            (Contd. of page 3)

             9 Physical and chemical properties

                                · Information on basic physical and chemical properties
                                · General Information
                                · Appearance:
                 Form:                         Powder
                     Color:                            Black
                                · Odor:                               Odorless
                                · Odor threshold:                    Not determined.

                                · pH-value:                         Not applicable.

                                · Change in condition
                    Melting point/Melting range:        2.210 °C (36 °F)
                     Boiling point/Boiling range:        Undetermined.

                                · Flash point:                       Not applicable.

                                · Flammability (solid, gaseous):        Product is not flammable

                                · Ignition temperature:

                   Decomposition temperature:        Not determined.

                                · Auto igniting:                      Not determined.

                                · Danger of explosion:                Product does not present an explosion hazard.

                                · Explosion limits:
                   Lower:                          Not determined.
                   Upper:                          Not determined.

                                · Vapor pressure:                    Not applicable.

                                · Density at 20 °C (68 °F):              2.61 g/cm³ (21.78045 lbs/gal)
                                · Relative density                    Not determined.
                                · Vapor density                      Not applicable.
                                · Evaporation rate                   Not applicable.

                                · Solubility in / Miscibility with
                    Water:                                Insoluble.

                                · Partition coefficient (n-octanol/water): Not determined.

                                · Viscosity:
                  Dynamic:                        Not applicable.
                    Kinematic:                       Not applicable.

                                · Solvent content:
                   Organic solvents:                    0.0 %
             VOC content:                       0.0 g/l / 0.00 lb/gl

                      Solids content:                     100.0 %
                                · Other information               No further relevant information available.


            10 Stability and reactivity

                                · Reactivity No further relevant information available.
                                · Chemical stability
                                · Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications.
                                · Possibility of hazardous reactions No dangerous reactions known.
                                                                                                                                            (Contd. on page 5)
                                                                                                                                             US





44.1.1
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## Page 5

```text
                                                                                                  Page 5/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)


                                                                                                                                            (Contd. of page 4)
                                · Conditions to avoid No further relevant information available.
                                · Incompatible materials: No further relevant information available.
                                · Hazardous decomposition products: No dangerous decomposition products known.


            11 Toxicological information

                                · Information on toxicological effects
                                · Acute toxicity:
                                · Primary irritant effect:
                                · on the skin: No irritant effect.
                                · on the eye: No irritating effect.
                                · Sensitization: No sensitizing effects known.
                                · Additional toxicological information:
               When used and handled according to specifications, the product does not have any harmful effects according to
                  our experience and the information provided to us.
                 The substance is not subject to classification.

                                · Carcinogenic categories
                                · IARC (International Agency for Research on Cancer)
                   Substance is not listed.

                                · NTP (National Toxicology Program)
                   Substance is not listed.

                                · OSHA-Ca (Occupational Safety & Health Administration)
                   Substance is not listed.


            12 Ecological information

                                · Toxicity
                                · Aquatic toxicity: No further relevant information available.
                                · Persistence and degradability No further relevant information available.
                                · Behavior in environmental systems:
                                · Bioaccumulative potential No further relevant information available.
                                · Mobility in soil No further relevant information available.
                                · Additional ecological information:
                                · General notes: Not known to be hazardous to water.
                                · Results of PBT and vPvB assessment
                                · PBT: Not applicable.
                                · vPvB: Not applicable.
                                · Other adverse effects No further relevant information available.


            13 Disposal considerations

                                · Waste treatment methods
                                · Recommendation: Disposal must be made according to official regulations.

                                · Uncleaned packagings:
                                · Recommendation: Disposal must be made according to official regulations.
                                                                                                                                             US
                                                                                                                                            (Contd. on page 6)





44.1.1
```

## Page 6

```text
                                                                                                  Page 6/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)

                                                                                                                                            (Contd. of page 5)

            14 Transport information

                                · UN-Number
                                · DOT, ADN, IMDG, IATA                 not regulated

                                · UN proper shipping name
                                · DOT, ADN, IMDG, IATA                 not regulated

                                · Transport hazard class(es)

                                · DOT, ADN, IMDG, IATA
                                · Class                                     not regulated

                                · Packing group
                                · DOT, IMDG, IATA                       not regulated

                                · Environmental hazards:
                                · Marine pollutant:                  No

                                · Special precautions for user             Not applicable.

                                · Transport in bulk according to Annex II of
              MARPOL73/78 and the IBC Code        Not applicable.

                                · UN "Model Regulation":                  not regulated


            15 Regulatory information

                                · Safety, health and environmental regulations/legislation specific for the substance or mixture
                                · Sara
                                · Section 355 (extremely hazardous substances):
                   Substance is not listed.

                                · Section 313 (Specific toxic chemical listings):
                   Substance is not listed.

                                · TSCA (Toxic Substances Control Act):
                   Substance is listed.
                                · Proposition 65
                                · Chemicals known to cause cancer:
                   Substance is not listed.

                                · Chemicals known to cause reproductive toxicity for females:
                   Substance is not listed.

                                · Chemicals known to cause reproductive toxicity for males:
                   Substance is not listed.

                                · Chemicals known to cause developmental toxicity:
                   Substance is not listed.

                                · Carcinogenic categories
                                · EPA (Environmental Protection Agency)
                   Substance is not listed.

                                · TLV (Threshold Limit Value established by ACGIH)
                   Substance is not listed.
                                                                                                                                            (Contd. on page 7)
                                                                                                                                             US





44.1.1
```

## Page 7

```text
                                                                                                  Page 7/7
                                           Safety Data Sheet
                                                  according to OSHA HCS

                Printing date 07/21/2021                                                         Reviewed on 07/21/2021

              Trade name: Lanthanum boride (99%-La)


                                                                                                                                            (Contd. of page 6)
                                · NIOSH-Ca (National Institute for Occupational Safety and Health)
                   Substance is not listed.
                                · GHS label elements not applicable
                                · Hazard pictograms not applicable
                                · Signal word not applicable
                                · Hazard statements not applicable
                                · Precautionary statements
                P262          Do not get in eyes, on skin, or on clothing.
                P280           Wear protective gloves/protective clothing/eye protection/face protection.
               P305+P351+P338 If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present
                                 and easy to do. Continue rinsing.
                P304+P340      IF INHALED: Remove person to fresh air and keep comfortable for breathing.
                P403+P233       Store in a well-ventilated place. Keep container tightly closed.
                P501            Dispose of contents/container in accordance with local/regional/national/international
                                         regulations.
                                · Chemical safety assessment: A Chemical Safety Assessment has not been carried out.


            16 Other information
                   This information is based on our present knowledge. However, this shall not constitute a guarantee for any
                      specific product features and shall not establish a legally valid contractual relationship.

                                · Department issuing SDS: Technical Department.
                                · Contact: Technical Director
                                · Date of preparation / last revision 07/21/2021 / -
                                · Abbreviations and acronyms:
                  ADR: Accord européen sur le transport des marchandises dangereuses par Route (European Agreement concerning the International
                       Carriage of Dangerous Goods by Road)
                  IMDG: International Maritime Code for Dangerous Goods
                  DOT: US Department of Transportation
                      IATA: International Air Transport Association
                   ACGIH: American Conference of Governmental Industrial Hygienists
                    EINECS: European Inventory of Existing Commercial Chemical Substances
                    CAS: Chemical Abstracts Service (division of the American Chemical Society)
                   NFPA: National Fire Protection Association (USA)
                   HMIS: Hazardous Materials Identification System (USA)
                  VOC: Volatile Organic Compounds (USA, EU)
                    PBT: Persistent, Bioaccumulative and Toxic
                      vPvB: very Persistent and very Bioaccumulative
                   NIOSH: National Institute for Occupational Safety
                  OSHA: Occupational Safety & Health
                     TLV: Threshold Limit Value
                    PEL: Permissible Exposure Limit
                    REL: Recommended Exposure Limit
                                                                                                                                             US





44.1.1
```
