Tungsten SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Tungsten
- CAS： 7440-33-7
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Flammable solids, Category 1
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Danger
H228 Flammable solid
H252 Self-heating in large quantities; may catch fire
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P370+P378 In case of fire: Use ... to extinguish.
none
none
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Tungsten
- Common names and synonyms: Tungsten
- CAS number: 7440-33-7
- EC number: 231-143-9
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest.
Rinse and then wash skin with water and soap.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.
Most important symptoms/effects, acute and delayed
no data available
Indication of immediate medical attention and special treatment needed, if necessary
no data available
SECTION 5: Firefighting measures
Suitable extinguishing media
Use dry chemical, carbon dioxide or alcohol-resistant foam.
Specific hazards arising from the chemical
Highly flammable when finely divided.
Special protective actions for fire-fighters
In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
Environmental precautions
Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up
Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames, NO sparks and NO smoking. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong oxidants and strong acids. Well closed.
SECTION 8: Exposure controls/personal protection
Control parameters
TLV: (respirable fraction): 3 mg/m3, as TWA
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear safety spectacles.
Protective gloves.
Use local exhaust.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
Solid. Powder.
-
Colour：
Canary yellow, heavy powder; dark orange when heated.
-
Odour：
no data available
-
Melting point/freezing point：
1 472 °C.
-
Boiling point or initial boiling point and boiling range：
1 837 °C. Atm. press.:1 Bar.
-
Flammability：
no data available
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
-23°C
-
Auto-ignition temperature：
>= 100 °C. Atm. press.:Ca. 14.7 PSI for a 100 mm cube.
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
no data available
-
Solubility：
In water: 18.154 mg/L total dissolved W, 24-hour screening (100 mg/L loading). Temperature:21 °C. pH:8.5.;20.225 mg/L tungstate anion (WO4--), 24-hour screening (100 mg/L loading). Temperature:21 °C. pH:8.5.;0.607 mg/L total dissolved W, 7-day definitive (1 mg/L loading). Temperature:21 °C. pH:8.5.
-
Partition coefficient n-octanol/water：
no data available
-
Vapour pressure：
0 Pa. Temperature:1 700 °C.;0.4 Pa. Temperature:2 300 °C.;0.002 Pa. Temperature:3 000 °C.
-
Density and/or relative density：
7.21 - 7.3 g/cm3. Temperature:23 °C.;7.27 g/cm3. Temperature:23 °C.
-
Relative vapour density：
no data available
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
The substance may ignite spontaneously on contact with air. Reacts with oxidants. This generates fire and explosion hazard. Reacts violently with strong acids.
Conditions to avoid
no data available
Incompatible materials
no data available
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 - rat (male/female) - > 2 000 mg/kg bw. Remarks:No toxic effects were present after a single dose of 2000 mg/kg of the test substance.
- Inhalation: LC50 - rat (male/female) - > 5.36 mg/L air.
- Dermal: LD50 - rat (male/female) - > 2 000 mg/kg bw.
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
May cause mechanical irritation to the eyes, skin and respiratory tract.
STOT-repeated exposure
no data available
Aspiration hazard
A harmful concentration of airborne particles can be reached quickly when dispersed.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: LC0 - Danio rerio (previous name: Brachydanio rerio) - >= 5.25 mg/L - 48 h. Remarks:WO3.
- Toxicity to daphnia and other aquatic invertebrates: EC0 - Daphnia magna - >= 5 mg/L - 24 h. Remarks:WO3.
- Toxicity to algae: EC0 - Desmodesmus subspicatus (previous name: Scenedesmus subspicatus) - >= 1 mg/L - 72 h.
- Toxicity to microorganisms: EC50 - activated sludge of a predominantly domestic sewage - > 10 000 mg/L - 3 h. Remarks:Respiration rate.
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
UN Number
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Packing group, if applicable
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/