· Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO) — Safety Data Sheet — Strem Chemicals, Inc.

PAGE 1

Page 1/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
1 Identification
· Product name
· Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
· Item number: 68-8000
· CAS Number:
39330-74-0
· EC number:
254-416-4
· 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
GHS02 Flame
d ~ 
Flam. Sol. 1 H228 Flammable solid.
· Label elements
· GHS label elements
The substance is classified and labeled according to the Globally Harmonized System (GHS).
· Hazard pictograms
d ~ 
GHS02
· Signal word Danger
· Hazard statements
H228 Flammable solid.
· Precautionary statements
P231  Handle under inert gas.
P210  Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P222  Do not allow contact with air.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P422  Store contents under inert gas.
P501  Dispose of contents/container in accordance with local/regional/national/international regulations.
(Contd. on page 2)
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PAGE 2

Page 2/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 1)
· Classification system:
· NFPA ratings (scale 0 - 4)
Health = 0
2
Fire = 2
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.
· vPvB: Not applicable.
3 Composition/information on ingredients
· Chemical characterization: Substances
· CAS No. Description
39330-74-0 Tris(cyclopentadienyl)erbium (99.9%-Er) (REO)
· Identification number(s)
· EC number: 254-416-4
4 First-aid measures
· Description of first aid measures
· After inhalation: Supply fresh air; consult doctor in case of complaints.
· After skin contact: Generally the product does not irritate the skin.
· After eye contact: Rinse opened eye for several minutes under running water.
· 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
Wear protective equipment. Keep unprotected persons away.
· Environmental precautions: No special measures required.
(Contd. on page 3)
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PAGE 3

Page 3/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 2)
· Methods and material for containment and cleaning up:
Dispose contaminated material as waste according to item 13.
Ensure adequate ventilation.
· 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:
Substance is not listed.
· PAC-2:
Substance is not listed.
· PAC-3:
Substance is not listed.
7 Handling and storage
· Handling: Handle under inert gas.
· Precautions for safe handling Open and handle receptacle with care.
· Information about protection against explosions and fires:
Keep ignition sources away - Do not smoke.
Protect against electrostatic charges.
· Conditions for safe storage, including any incompatibilities
· Storage: Store contents under inert gas.
· 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:
Keep receptacle tightly sealed.
Store in cool, dry conditions in well sealed receptacles.
· 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:
Keep away from foodstuffs, beverages and feed.
Wash hands before breaks and at the end of work.
· Breathing equipment: Not required.
· Protection of hands:
Protective gloves
_ S
(Contd. on page 4)
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PAGE 4

Page 4/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 3)
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
9 Physical and chemical properties
· Information on basic physical and chemical properties
· General Information
· Appearance:
Form:  Powder
Color:  Pink
· Odor:  Odorless
· Odor threshold:  Not determined.
· pH-value:  Not applicable.
· Change in condition
Melting point/Melting range:  285 °C (545 °F)
Boiling point/Boiling range:  200 °C (392 °F)
· Flash point:  Not applicable.
· Flammability (solid, gaseous):  Flammable.
· Ignition temperature:
Decomposition temperature:  Not determined.
· Auto igniting:  Not determined.
· Danger of explosion:  Not determined.
· Explosion limits:
Lower:  Not determined.
Upper:  Not determined.
· Vapor pressure:  Not applicable.
· Density:  Not determined.
· 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.
(Contd. on page 5)
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PAGE 5

Page 5/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 4)
· 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.
· 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:
· 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.
(Contd. on page 6)
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Page 6/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 5)
· Other adverse effects No further relevant information available.
13 Disposal considerations
· Waste treatment methods
· Recommendation:
Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
· Uncleaned packagings:
· Recommendation: Disposal must be made according to official regulations.
14 Transport information
· UN-Number
· DOT, IMDG, IATA  UN1325
· UN proper shipping name
· DOT  Flammable solids, organic, n.o.s.
· IMDG, IATA  FLAMMABLE SOLID, ORGANIC, N.O.S.
· Transport hazard class(es)
· DOT
d h c ` g y Œ
· Class  4.1 Flammable solids, self-reactive substances and solid
desensitised explosives
· Label  4.1
· IMDG
d h c ` g y
· Class  4
· Label  4.1
· IATA
d h c ` g y
· Class  4.1 Flammable solids, self-reactive substances and solid
desensitised explosives
· Label  4.1
· Packing group
· DOT, IMDG, IATA  II
· Environmental hazards:
· Marine pollutant:  No
(Contd. on page 7)
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PAGE 7

Page 7/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 6)
· Special precautions for user  Not applicable.
· EMS Number:  F-A,S-G
· Stowage Category  B
· Transport in bulk according to Annex II of
MARPOL73/78 and the IBC Code  Not applicable.
· Transport/Additional information:
· DOT
· Quantity limitations  On passenger aircraft/rail: 15 kg
On cargo aircraft only: 50 kg
· UN "Model Regulation":  UN 1325 FLAMMABLE SOLIDS, ORGANIC, N.O.S., 4.1, II
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 not 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.
· NIOSH-Ca (National Institute for Occupational Safety and Health)
Substance is not listed.
· GHS label elements
The substance is classified and labeled according to the Globally Harmonized System (GHS).
(Contd. on page 8)
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PAGE 8

Page 8/8
Safety Data Sheet
according to OSHA HCS
Printing date 07/18/2021  Reviewed on 07/14/2021
Trade name: Tris(cyclopentadienyl)erbium(III) (99.9%-Er) (REO)
(Contd. of page 7)
· Hazard pictograms
d ~ 
GHS02
· Signal word Danger
· Hazard statements
H228 Flammable solid.
· Precautionary statements
P231  Handle under inert gas.
P210  Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P222  Do not allow contact with air.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P422  Store contents under inert gas.
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 07/18/2021 / -
· 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
Flam. Sol. 1: Flammable solids – Category 1
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44.1.1