Silicon SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Silicon
- CAS： 7440-21-3
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
Not classified.
GHS label elements, including precautionary statements
- Signal word No signal word
none
none
none
none
none
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Silicon
- Common names and synonyms: Silicon
- CAS number: 7440-21-3
- EC number: 231-130-8
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest.
Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth.
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
Combustible under specific conditions. Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion on contact with halogens or oxidizing agents.
Special protective actions for fire-fighters
Use special powder, dry sand. NO hydrous agents.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
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. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Prevent build-up of electrostatic charges (e.g., by grounding). 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 incompatible materials. See Chemical Dangers.
SECTION 8: Exposure controls/personal protection
Control parameters
| Component | Silicon | |||
|---|---|---|---|---|
| CAS No. | 7440-21-3 | |||
| Limit value - Eight hours | Limit value - Short term | |||
| ppm | mg/m3 | ppm | mg/m3 | |
| Australia | ? | 10 (1) | ? | ? |
| Belgium | ? | 10 | ? | ? |
| Canada - Ontario | ? | 10 | ? | ? |
| Canada - Québec | ? | 10 | ? | ? |
| Denmark | ? | 10 inhalable aerosol | ? | 20 inhalable aerosol |
| France | ? | 10 respirable aerosol | ? | ? |
| Ireland | ? | 10 (1) | ? | ? |
| ? | ? | 4 (2) | ? | ? |
| New Zealand | ? | 10 (1) | ? | ? |
| Singapore | ? | 10 | ? | ? |
| South Korea | ? | 10 | ? | ? |
| Switzerland | ? | 3 respirable aerosol | ? | ? |
| USA - NIOSH | ? | 10 total dust | ? | ? |
| ? | ? | 5 respirable fraction | ? | ? |
| USA - OSHA | ? | 15 total dust | ? | ? |
| ? | ? | 5 respirable dust | ? | ? |
| United Kingdom | ? | 10 inhalable aerosol | ? | ? |
| ? | ? | 4 respirable aerosol | ? | ? |
| Remarks | ||||
| Australia | (1) This value is for inhalable dust containing no asbestos and | |||
| Ireland | (1) Inhalable fraction (2) Respirable fraction | |||
| New Zealand | (1) The value for inhalable dust containing no asbestos and less than 1% free silica. | |||
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 goggles.
Protective gloves.
Use local exhaust or breathing protection.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
Solid. Solid: crystalline.
-
Colour：
White.
-
Odour：
no data available
-
Melting point/freezing point：
140 °C.
-
Boiling point or initial boiling point and boiling range：
Remarks:The substance undergoes sublimation at 245 °C.
-
Flammability：
no data available
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
no data available
-
Auto-ignition temperature：
no data available
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
no data available
-
Solubility：
Insoluble in water
-
Partition coefficient n-octanol/water：
Pow = 2.28. Temperature:20 °C. Remarks:PH not available.;log Pow = 0.357. Temperature:20 °C. Remarks:PH not available.
-
Vapour pressure：
9.999 Pa. Temperature:20 °C. Remarks:Info taken from the Hazardous Substance Fact Sheet published by the New Jersy Department of Health and Senior Services.;0.075 mm Hg. Temperature:20 °C. Remarks:Info taken from the Hazardous Substance Fact Sheet published by the New Jersy Department of Health and Senior Services.
-
Density and/or relative density：
2.01 dimensionless.
-
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
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.Reacts violently with oxidants, halogens, metal carbonates and metal acetylides. This generates fire hazard. Reacts violently with metal hexafluorides. This generates fire and explosion hazard. Reacts on heating with water. This produces flammable/explosive gas (hydrogen - see ICSC 0001).
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 - mouse - 70 mg/kg bw.
- Inhalation: no data available
- Dermal: no data available
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 and respiratory tract.
STOT-repeated exposure
no data available
Aspiration hazard
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna - ca. 35.4 mg/L - 48 h.
- Toxicity to algae: EC50 - Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum) - >= 16.6 - <= 19.6 mg/L - 72 h.
- Toxicity to microorganisms: no data available
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: UN1346 (For reference only, please check.)
IMDG: UN1346 (For reference only, please check.)
IATA: UN1346 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: SILICON POWDER, AMORPHOUS (For reference only, please check.)
IMDG: SILICON POWDER, AMORPHOUS (For reference only, please check.)
IATA: SILICON POWDER, AMORPHOUS (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 4.1 (For reference only, please check.)
IMDG: 4.1 (For reference only, please check.)
IATA: 4.1 (For reference only, please check.)
Packing group, if applicable
ADR/RID: III (For reference only, please check.)
IMDG: III (For reference only, please check.)
IATA: III (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/
Other Information
Reacts violently with fire extinguishing agents such as water.