Tungsten
Synonyms: Tungsten powder, Tungsten metal powder
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name
Tungsten
Product Form
Substance
Catalogue No.
AL4712
CAS Number
7440-33-7
EC Number
231-143-9
EC Index Number
-
Grade
99%
HSN Code
81019990
Molecular Formula
W
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name
Tungsten
Catalogue No.
AL4712
Product form
Substance
CAS Number
7440-33-7
EC Number
231-143-9
Grade
99%
EC Index Number
Not applicable
Chemical Formula
W
HSN Code
81019990
Synonyms
Tungsten powder, Tungsten metal powder
Chemical Structure
-
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture
Used in the production of tungsten carbide, high-temperature alloys, and specialty materials.
Uses advised against
Not specified
1.3 Details of the supplier of the safety data sheet
Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Flam. Sol. 1
Classification source
ECHA C&L Inventory via PubChem CID 23964 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms
Flammable
Signal word
Danger
Hazard statements
H228: Flammable solid
2.3 Other hazards
Other hazards
Flammable dust; may form explosive mixtures in air.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name
Tungsten
CAS No.
7440-33-7
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation
If a person breathes large amounts of this chemical, move the exposed person to fresh air at once.
First-aid measures after skin contact
If this chemical contacts the skin, wash the contaminated skin with soap and water.
First-aid measures after eye contact
If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
First-aid measures after ingestion
If this chemical has been swallowed, get medical attention immediately.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use
Inhalation may cause respiratory irritation. Skin contact may cause irritation.
4.3 Indication of any immediate medical attention and special treatment needed
General information
Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures
Dust explosion possible if in powder or granular form, mixed with air.
5.3 Advice for firefighters
Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures
Avoid dust generation. Use appropriate personal protective equipment. Ensure adequate ventilation.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up
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. Then store and dispose of according to local regulations.
6.4 Reference to other sections
Reference
Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling
Avoid dust formation. Use appropriate personal protective equipment, including gloves and masks.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions
See Chemical Dangers. Separated from strong oxidants and strong acids. Well closed.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use a NIOSH-approved respirator if dust levels exceed permissible limits.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state
Solid
Colour
Gray
Odour
Odourless
Odour threshold
Not applicable
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
3410 °C
Freezing point
Not applicable
Boiling point
5900 °C @ 760 mm Hg
Flash point
Not applicable
Auto-ignition temperature
>=100 °C
Decomposition temperature
Not applicable
Flammability (solid, gas)
Flammable dust
Vapour pressure
1.97X10-7 mm Hg @ 2,327 °C
Relative vapour density at 20°C
Not applicable
Density
18.7-19.3 @ 20 °C/4 °C; depends on extent of working.
Solubility
Sol in mixture of nitric acid and hydrofluoric acid
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Dust may form explosive mixtures in air
Oxidising properties
Not applicable
Explosive limits
Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity
Stable under normal conditions. Avoid contact with strong oxidizers.
10.2 Chemical stability
Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions
Reacts violently with oxidants, potassium perchlorate and potassium dichromate. This generates fire and explosion hazard. Reacts violently with strong acids and halogens.
10.4 Conditions to avoid
Conditions to avoid
Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials
Strong oxidizing agents, acids.
10.6 Hazardous decomposition products
Hazardous decomposition products
Not specified
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Rat ip 5 g/kg bw
Skin corrosion/irritation
Not classified (based on available data)
Serious eye damage/irritation
Not classified (based on available data)
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
Not classified (based on available data)
Specific target organ toxicity (repeated exposure)
Not classified (based on available data)
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information
Not specified
12.2 Persistence - degradability
Persistence - degradability
Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential
Not specified
12.4 Mobility in soil
Mobility in soil
Not specified
12.6 Other adverse effects
Environmental precautions
Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR)
UN 3089
UN-No. (IMDG)
UN 3089
UN-No. (IATA)
UN 3089
UN-No. (ADN)
UN 3089
UN-No. (RID)
UN 3089
14.2 UN proper shipping name
Proper Shipping Name (ADR)
Tungsten powder
Proper Shipping Name (IMDG)
Tungsten powder
Proper Shipping Name (IATA)
Tungsten powder
Proper Shipping Name (ADN)
Tungsten powder
Proper Shipping Name (RID)
Tungsten powder
14.3 Transport hazard class(es)
Transport hazard class(es)
4.1
14.4 Packing group
Packing group (ADR)
II
Packing group (IMDG)
II
Packing group (IATA)
II
Packing group (ADN)
II
Packing group (RID)
II
14.5 Environmental hazards
Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations
Not specified
SECTION 16: Other Information
Disclaimer
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 is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee 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.