# Tellurium\-126 SDS \(Te\-126 / 126Te\) — Tellurium Oxide, Enriched Tellurium Oxide

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- **Document title:** Tellurium\-126 SDS \(Te\-126 / 126Te\) — Tellurium Oxide, Enriched Tellurium Oxide
- **Publisher:** Neonest AB
- **Material:** Tellurium Oxide, Enriched Tellurium Oxide
- **CAS number:** 7446\-07\-3
- **Product code / grade:** Enriched isotope · Tellurium\-126 · Te\-126 · 126Te
- **Document type:** SDS
- **Original language:** English
- **Region:** Sweden
- **Revision date:** 24\-Aug\-2019
- **Page count:** 9
- **Original filename:** tellurium\-126\-sds\.pdf
- **RESDS page:** https://resds\.com/document/tellurium\-126\-sds\-te\-126\-ee4b6be1ea
- **Original PDF:** https://resds\.com/pdf/tellurium\-126\-sds\-te\-126\-ee4b6be1ea\.pdf
- **Source URL:** https://www\.buyisotope\.com/sds/tellurium\-126\-oxide\-safety\-data\-sheet\-tellurium\-126\-sds\-tellurium\-126\-isotope\-tellurium\-126\-enriched\-tellurium\-126\.pdf
- **Description:** Original Safety Data Sheet for Tellurium Oxide, Enriched Tellurium Oxide, published by Neonest AB\. Isotope designation: Tellurium\-126 \(Te\-126 / 126Te\)\.

## Page 1

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                   Enriched Tellurium Oxide
                                                                                   According to ISO 11014:2010

                                                                                   First Print Date: 5-Mar-2015
                                                                                   Revision Date: 24-Aug-2019
                                                                                   Version: 1.1.1.



Section 1: Identification of the Substance/Mixture and of the Company/Undertaking

Product Identifier:
Identification as on the label/Trade name: Tellurium Oxide, Enriched Tellurium Oxide.
Molecular weight: 159.6
Chemical formula: TeO2
Synonyms: Tellurium Dioxide.


Details of the supplier of the Safety Data Sheet:
Neonest AB
Storgatan 70C, Solna
SE-17152
Sweden

Contact details:
+46-76-219-9731

24-hour Emergency Contact:
Swedish Poisons Centre
Phone: 112 - Ask for Poisons Information, 112 – begär Giftinformation.

Other International Contacts:
CHEMTREC 24-hour: +1-703-741-5500 (US + Worldwide)
NHS: 111 (UK)
Charite: +49 30 450 531 000 (Netherlands)
INTCF: +34 917689800 (Spain)
CapTv: +33 1 40 05 48 48 (France)


Section 2: Hazards Identification

Classification of the substances or mixture:
The mixture is classified according to: Regulation EC 1272/2008 [EU-GHS/CLP]

Hazard classes/Hazard categories:                              Hazard statement:
Not classified as hazardous.                                   None required.


Label elements:
Hazard pictograms: Not required.
Signal Words: Not required.
Hazard Statements: Not required.
Precautionary Statements: None.
Other hazards: None known.




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## Page 2

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                     Enriched Tellurium Oxide
                                                                                     According to ISO 11014:2010

                                                                                     First Print Date: 5-Mar-2015
                                                                                     Revision Date: 24-Aug-2019
                                                                                     Version: 1.1.1.



Section 3: Composition/Information on Ingredients

Substance/Mixture: Substance.
Ingredients:

                                             CAS-No.            Molecular         Concentration               Classification
 Substance name (IUPAC/EC)
                                              EC-No.             weight            % by weight                EC1272/2008
                                                                                                        Acute Tox. 4     H302
                                                                                                        Skin Corr. 1A    H314
                                            7446-07-3                                                   Skin Sens. 1A    H317
                                                                                                        Eye Dam. 1       H318
                                                                                                        Acute Tox. 4     H332
 Tellurium dioxide                                                 159.6               >99%
                                                                                                        Carc. 1A H350 H350
                                                                                                        Repr. 1A         H360
                                            231-193-1                                                   STOT RE 1        H372
                                                                                                        Aquatic Acute 1 H400
                                                                                                        Aquatic Chronic 2H411

For explanation of abbreviations see Section 16.


Section 4: First-Aid Measures

Description of first aid measures:
In case of inhalation: If breathed in, move person into fresh air. If not breathing, give artificial respiration. In case of
discomfort seek medical attention.
In case of skin contact: Wash off with soap and plenty of water for at least 15 minutes. In case of discomfort seek
medical attention.
In case of eye contact: Flush eyes thoroughly with water for 15 minutes. Remove contact lenses after the initial 1-2
minutes and continue flushing. In case of discomfort seek medical attention.
In case of ingestion: Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth
with water. In case of discomfort seek medical attention.

Most important symptoms and effects, both acute and delayed:
Inhalation: Inhalation of dust may produce irritation, headache, metallic taste and/or cough. Severe exposures may
produce shortness of breath, chest pain and flu-like symptoms: weakness, fever, headache, chills, sweating, nausea
and muscular pain.
Eyes: May cause irritation, redness, and pain.
Skin contact: May cause irritation, redness, and pain.
Ingestion: Symptoms can include severe nausea, vomiting, diarrhoea, abdominal pain, choking, dizziness and
salivation.
Indication of any immediate medical attention and special treatment needed: Treat symptomatically. Show this
safety data sheet to a physician or emergency room.


Section 5: Fire-Fighting Measures

Extinguisher media:


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## Page 3

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.


Suitable extinguisher media: Use any means suitable for extinguishing surrounding fire.
Unsuitable extinguishing media: None known.
Special hazards arising from the mixture: None known.
Advice for fire-fighters: Wear self-contained breathing apparatus and protective clothing for firefighting.
Further information: Standard procedure for chemical fires. Use extinguishing measures that are appropriate to local
circumstances and the surrounding environment.


Section 6: Accidental Release Measures

Personal precautions, protective equipment and emergency procedures:
Personal precautions: Wear appropriate protective clothing. Avoid generation of dusts.
Environmental precautions: Prevent product from entering drains. Prevent further leakage or spillage if safe to do so.
Local authorities should be advised if significant spillages cannot be contained.

Methods for containment and cleaning up:
Methods for cleaning up: Avoid generation of dusts. Carefully take up dry product. Forward for disposal. Clean up
affected area.

Reference to other sections:
Treat recovered material as described in the section "Disposal considerations".


Section 7: Handling and Storage

Precautions for safe handling:
Advice on safe handling: Avoid generation of dusts. Change contaminated clothing. Wash hands after working with
substance.
Hygiene measures: Do not eat, drink or smoke when using this product.

Conditions for safe storage, including incompatibilities:
Requirements for storage areas and containers: Store at room temperature (15-25 °C recommended). Keep well
closed and protected from direct sunlight and moisture.


Section 8: Exposure Controls/Personal Protection

Control parameters:
Occupational exposure limits:
INHALATION Exposure
Long-term: (DNEL) 580 µg/m³
DERMAL Exposure
Long-term: (DNEL) 830 µg/kg bw/day

Exposure controls:
Appropriate engineering controls: A system of local and/or general exhaust is recommended to keep employee
exposures below the Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can control
the emissions of the contaminant at its source, preventing dispersion into the general work area.



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## Page 4

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.


Individual protection measures, such as personal protective equipment:
Eye/face protection: Use safety glasses. If there is a potential for exposure to particles which could cause eye
discomfort, wear chemical goggles.
Hand protection: Use chemical resistant gloves. Examples of preferred glove barrier materials include: Butyl rubber,
Neoprene, Nitrile/butadiene rubber, Polyethylene, Ethyl vinyl alcohol laminate, polyvinyl alcohol, Polyvinyl chloride.
Body protection: Plastic apron, sleeves, boots (if handling large quantities).
Respiratory protection: If the exposure limit is exceeded and engineering controls are not feasible, a half-face high-
efficiency particulate respirator (NIOSH type N100 filter) may be worn for up to ten times the exposure limit or the
maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is
lowest. A full-face piece high efficiency particulate respirator (NIOSH type N100 filter) may be worn up to 50 times the
exposure limit, or the maximum use concentration specified by the appropriate regulatory agency or respirator
supplier, whichever is lowest. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present, use a NIOSH
type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-
pressure, air-supplied respirator.


Section 9: Physical and Chemical Properties

Information on basic physical and chemical properties
Appearance (form): Solid.
Colour: White.
Odour: Odourless.
Odour threshold: No data available.
Molecular Weight: 159.6
pH (concentration): No data available.
Melting point/range (°C): 733 °C
Boiling point/range (°C): 1245 °C
Freezing point (°C): No data available.
Flash point (°C): No data available.
Evaporation rate: No data available.
Flammability (solid, gas): No data available.
Ignition temperature (°C): No data available.
Upper/lower flammability/explosive limits: No data available.
Vapour pressure (20 °C): No data available.
Vapour density: No data available.
Relative density (25 °C): 6.02
Water solubility (g/L) at 20 °C: Insoluble.
n-Octanol/Water partition coefficient: No data available.
Auto-ignition temperature: No data available.
Decomposition temperature: No data available.
Viscosity, dynamic (mPa s): No data available.
Explosive properties: The substance or mixture is not classified as explosive.
Oxidising properties: The substance or mixture is not classified as oxidizing.


Section 10: Stability and Reactivity

Reactivity: No dangerous reaction known under conditions of normal use.
Chemical stability: Stable under normal conditions.

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## Page 5

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                   Enriched Tellurium Oxide
                                                                                   According to ISO 11014:2010

                                                                                   First Print Date: 5-Mar-2015
                                                                                   Revision Date: 24-Aug-2019
                                                                                   Version: 1.1.1.


Possibility of hazardous reactions: No dangerous reaction known under conditions of normal use.
Conditions to avoid: None known.
Incompatible materials: Strong acids, strong oxidizing agents.
Hazardous decomposition products: None known.


Section 11: Toxicological Information

Information on toxicological effects:
Acute Toxicity:
LD50 Oral, Rat - > 5,000 mg/kg
Classification according to GHS (1272/2008/EG, CLP)
Skin corrosion/irritation:
Causes severe skin burns and eye damage.
Serious eye damage/eye irritation:
Causes serious eye damage.
Respiratory or skin sensitisation:
May cause an allergic skin reaction.
Germ cell mutagenicity:
No data available.
Carcinogenicity:
May cause cancer.
Reproductive toxicity:
May damage fertility or the unborn child.
Specific target organ toxicity – single exposure (STOT):
Not classified based on available information.
Specific target organ toxicity (STOT) – repeated exposure:
Causes damage to organs through prolonged or repeated exposure.
Aspiration toxicity:
Not classified based on available information.


Section 12: Ecological Information

Toxicity:
Toxicity to fish: LC50 (4 days) 37.1 - 100 mg/L
Short–term toxicity to aquatic invertebrates:
EC50 (48 h) 5.79 - 7.24 mg/L
NOEC (48 h) 3.64 - 4.55 mg/L
Persistence and degradability: No data available.
Bioaccumulative potential: No data available.
Mobility in soil: No data available.
Results of PBT& vPvB assessment: Not relevant.
Other adverse effects: Very toxic to aquatic life. Toxic to aquatic life with long lasting effects.




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## Page 6

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.



Section 13: Disposal Considerations

Waste treatment methods: Chemical residues are generally classified as special waste, and as such are covered by
regulations which vary according to location. Contact your local waste disposal authority for advice, or pass to a
chemical disposal company.


Section 14: Transport Information

UN number: Not regulated as a dangerous good.
UN proper shipping name: Not regulated as a dangerous good.
Transport hazard class(es): Not regulated as a dangerous good.
Packing group: Not regulated as a dangerous good.
Environmental hazards: Not regulated as a dangerous good.
Special precautions for user: Not dangerous goods in the meaning of ADR/RID, ADN, IMDG-Code, ICAO/IATA-DGR.
Transport in bulk according to Annex II of Marpol and the IBC Code: Not applicable.

Section 15: Regulatory Information

EU regulations:
Regulation (EC) No. 1005/2009 on substances that deplete the ozone layer, Annex I and II, as amended
Not listed.
Regulation (EC) No. 850/2004 on persistent organic pollutants, Annex I
Not listed.
Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 1 as
amended
Not listed.
Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 2 as
amended
Not listed.
Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 3 as
amended
Not listed.
Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex V as amended
Not listed.
Regulation (EC) No. 166/2006 Annex II Pollutant Release and Transfer Registry
Not listed.
Regulation (EC) No. 1907/2006, REACH Article 59(10) Candidate List as currently published by ECHA
Not listed.

Authorisations:
Regulation (EC) No. 1907/2006, REACH Annex XIV Substances subject to authorization, as amended
Not listed.

Restrictions on use:
Regulation (EC) No. 1907/2006 Annex XVII Substances subject to restriction on marketing and use
Not regulated.
Regulation (EC) No. 1907/2006, REACH Annex XVII Substances subject to restriction on marketing and use as
amended

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## Page 7

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.


Not listed.
Directive 2004/37/EC on the protection of workers from the risks related to exposure to carcinogens and mutagens
at work
Not regulated.
Directive 92/85/EEC: on the safety and health of pregnant workers and workers who have recently given birth or
are breastfeeding.
Not regulated.

Other EU regulations:
Directive 2012/18/EU on major accident hazards involving dangerous substances
Not listed.
Directive 98/24/EC on the protection of the health and safety of workers from the risks related to chemical agents
at work.
Always applicable.
Directive 94/33/EC on the protection of young people at work
Not listed.

Other regulations: The product is classified and labelled in accordance with EC directives or respective national laws.
This Safety Data Sheet complies with the requirements of Regulation (EC) No 1907/2006, as amended.
OSHA Hazards: Carcinogen, Target Organ Effect, Teratogen, Mutagen.
SARA 302 Components: No chemicals in this material are subject to the reporting requirements of SARA Title III,
Section 302.
SARA 313 Components: This material does not contain any chemical components with known CAS numbers that
exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards: Acute Health Hazard, Chronic Health Hazard.
Massachusetts Right To Know Components: No components are subject to the Massachusetts Right to Know Act.
Pennsylvania Right To Know Components: Tellurium dioxide / CAS No. 7446-07-3
New Jersey Right To Know Components: Tellurium dioxide / CAS No. 7446-07-3
California Prop. 65 Components: This product does not contain any chemicals known to the State of California to
cause cancer, birth defects, or any other reproductive harm.
National regulations: Follow national regulation for work with chemical agents.
Chemical safety assessment: No Chemical Safety Assessment has been carried out.


Section 16: Other Information

List of abbreviations:
ACGIH American Conference of Governmental Industrial Hygienists
ADR European Agreement Concerning the International Carriage of Dangerous Goods by Road
ALARA As Low As Is Reasonably Achievable
AMU Atomic Mass Unit
ANSI American National Standards Institute
BLS Basic Life Support
CAM Continuous Air Monitor
CAS Chemical Abstracts Service (division of the American Chemical Society)
CEN European Committee for Standardization
CERCLA Comprehensive Environmental Response Compensation and Liability Act
CLP Classification, Labelling and Packaging (European Union)


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## Page 8

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.


CPR Controlled Products Regulations (Canada)
CWA Clean Water Act (USA)
DAC Derived Air Concentration (USA)
DOE United States Department of Energy (USA)
DOT United States Department of Transportation (USA)
DSL Domestic Substances List (Canada)
EC50 Half Maximal Effective Concentration
EINECS European Inventory of Existing Commercial Chemical Substances
EHS Environmentally Hazardous Substance
ELINCS European List of Notified Chemical Substances
EMS Emergency Response Procedures for Ships Carrying Dangerous Goods
EPA Environmental Protection Agency (USA)
EPCRA Emergency Planning and Community Right-To-Know Act (EPCRA) of 1986
GHS Globally Harmonized System
HMIS Hazardous Materials Identification System (USA)
IARC International Agency for Research on Cancer
IATA International Air Transport Association
IBC Intermediate Bulk Containers
ICAO International Civil Aviation Organization
IDLH Immediately Dangerous to Life or Health
IMDG International Maritime Code for Dangerous Goods
LC50 Lethal concentration, 50 percent
LD50 Lethal dose, 50 percent
LDLO Lethal Dose Low
LOEC Lowest-Observed-Effective Concentration
MARPOL International Convention for the Prevention of Pollution from Ships
MSHA Mine Safety and Health Administration (USA)
NCRP National Council on Radiation Protection & Measurements (USA)
NDSL Non-Domestic Substances List (Canada)
NFPA National Fire Protection Association (USA)
NIOSH National Institute for Occupational Safety and Health (USA)
NOEC No Observed Effect Concentration
N.O.S. Not Otherwise Specified
NRC Nuclear Regulatory Commission (USA)
NTP National Toxicology Program (USA)
OSHA Occupational Safety and Health Administration (USA)
PBT Persistent Bioaccumulative and Toxic Chemical
PEL Permissible Exposure Limit
PIH Poisonous by Inhalation Hazard
RCRA Resource Conservation and Recovery Act (USA)
RCT Radiation Control Technician
REACH Registration, Evaluation, Authorisation and Restriction of Chemicals (Europe)
RID Regulations Concerning the International Transport of Dangerous Goods by Rail
RTECS Registry of Toxic Effects of Chemical Substances
SARA Superfund Amendments and Reauthorization Act (USA)
TDG Transportation of Dangerous Goods (Canada)
TIH Toxic by Inhalation Hazard


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## Page 9

```text
Safety Data Sheet for Tellurium Oxide,
                                                                                  Enriched Tellurium Oxide
                                                                                  According to ISO 11014:2010

                                                                                  First Print Date: 5-Mar-2015
                                                                                  Revision Date: 24-Aug-2019
                                                                                  Version: 1.1.1.


TLV Threshold Limit Value
TPQ Threshold Planning Quantity
TSCA Toxic Substances Control Act
TWA Time Weighted Average
UN United Nations (Number)
VOC Volatile Organic Compound
vPvB Very Persistent Very Bioaccumulative Chemical
WGK Wassergefährdungsklassen (Germany: Water Hazard Classes)
WHMIS Workplace Hazardous Materials Information System
References:
Not available.
Full text of any H-statements not written out in full under Sections 2 to 15:
H302 Harmful if swallowed.
H314 Causes severe skin burns and eye damage.
H317 May cause an allergic skin reaction.
H318 Causes serious eye damage.
H332 Harmful if inhaled.
H350 May cause cancer.
H360 May damage fertility or the unborn child.
H372 Causes damage to organs through prolonged or repeated exposure.
H400 Very toxic to aquatic life.
H411 Toxic to aquatic life with long lasting effects.
Revision information:
None.
Training information:
Follow training instructions when handling this material.
Further Information:
The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at
the date of its publication. The information given is designed only as a guidance for safe handling, use, processing,
storage, transportation, disposal and release and is not to be considered a warranty or quality specification. The
information relates only to the specific material designated and may not be valid for such material used in
combination with any other materials or in any process, unless specified in the text.




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