NILE
CHEMICALS
NILE
CHEMICALS
Section
1: Chemical Product and Company Identification
Product
Name: Silicon( Metal)
Powder
CAS#:
7440-21-3
Synonym:
Chemical
Name: Silicon
Chemical
Formula: Si
Section
2: Composition and Information on Ingredients
Composition:
Name
CAS #
% by Weight
Silicon
7440-21-3
100
Toxicological
Data on Ingredients: Silicon:
ORAL (LD50): Acute: 3160 mg/kg [Rat].
Section
3: Hazards Identification
Potential
Acute Health Effects:Hazardous
in case of inhalation. Slightly hazardous in case of skin contact (irritant), of
eye contact (irritant), of ingestion.
Potential
Chronic Health Effects:CARCINOGENIC
EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS:
Not available.
DEVELOPMENTAL
TOXICITY: Not available. Repeated or prolonged exposure is not known to
aggravate medical condition.
Section
4: First Aid Measures
Eye
Contact:Check for and
remove any contact lenses. In case of contact, immediately flush eyes with
plenty of water for at least 15 minutes. Get medical attention if irritation
occurs.
Skin
Contact: Wash with soap
and water. Cover the irritated skin with an emollient. Get medical attention if
irritation develops.
Serious
Skin Contact: Not
available.
Inhalation:If
inhaled, remove to fresh air. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Get medical attention.
Serious
Inhalation:Evacuate the
victim to a safe area as soon as possible. Loosen tight clothing such as a
collar, tie, belt or waistband. If breathing is difficult, administer oxygen. If
the victim is not breathing, perform mouth-to-mouth resuscitation. Seek medical
attention.
Ingestion:Do
NOT induce vomiting unless directed to do so by medical personnel. Never give
anything by mouth to an unconscious person. Loosen tight clothing such as a
collar, tie, belt or waistband. Get medical attention if symptoms appear.
Serious
Ingestion: Not available.
Section
5: Fire and Explosion Data
Flammability
of the Product: Flammable.
Auto-Ignition
Temperature: 780°C (1436°F)
Flash
Points: Not available.
Flammable
Limits: Not available.
Products
of Combustion: Some
metallic oxides.
Fire
Hazards in Presence of Various Substances:
Flammable
in presence of open flames and sparks, of heat. Non-flammable in presence of
shocks.
Explosion
Hazards in Presence of Various Substances:
Risks
of explosion of the product in presence of mechanical impact: Not available.
Risks of explosion of the product in presence of static discharge: Not
available. Slightly explosive in presence of heat.
Fire
Fighting Media and Instructions:
Flammable
solid. SMALL FIRE: Use DRY chemical powder. LARGE FIRE: Use water spray or fog.
Cool containing vessels with water jet in order to prevent pressure build-up,
autoignition or explosion.
Special
Remarks on Fire Hazards:
Interaction
of calcium and silicon is violently incndescent above 1050 deg. C after a short
delay. Amorphous or crystalline silicon both react exothermically when heated
with alkali-metal carbonates attaining incandescence and evolving carbon
monoxide.
Special
Remarks on Explosion Hazards:
Material
in powder form, capable of creating a dust explosion. Mixture of silicon,
aluminum, and lead oxide explodes when heated.
Section
6: Accidental Release Measures
Small
Spill: Use appropriate
tools to put the spilled solid in a convenient waste disposal container.
Large
Spill:
Flammable
solid. Stop leak if without risk. Do not touch spilled material. Use water spray
curtain to divert vapor drift. Prevent entry into sewers, basements or confined
areas; dike if needed. Eliminate all ignition sources. Call for assistance on
disposal. Be careful that the product is not present at a concentration level
above TLV. Check TLV on the MSDS and with local authorities.
Section
7: Handling and Storage
Precautions:Keep
away from heat. Keep away from sources of ignition. Ground all equipment
containing material. Do not ingest. Do not breathe dust. Wear suitable
protective clothing. In case of insufficient ventilation, wear suitable
respiratory equipment. If ingested, seek medical advice immediately and show the
container or the label. Keep away from incompatibles such as oxidizing agents.
Storage:Keep
container in a cool, well-ventilated area. Keep container tightly closed and
sealed until ready for use. Avoid all possible sources of ignition (spark or
flame).
Section
8: Exposure Controls/Personal Protection
Engineering
Controls:Use process
enclosures, local exhaust ventilation, or other engineering controls to keep
airborne levels below recommended exposure limits. If user operations generate
dust, fume or mist, use ventilation to keep exposure to airborne contaminants
below the exposure limit.
Personal
Protection: Safety
glasses. Lab coat. Dust respirator. Be sure to use an approved/certified
respirator or equivalent.
Gloves.
Personal
Protection in Case of a Large Spill:Splash
goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing
apparatus should be used to avoid inhalation of the product. Suggested
protective clothing might not be sufficient; consult a specialist BEFORE
handling this product.
Exposure
Limits:TWA: 5 (mg/m3) from
OSHA (PEL) [United States] Inhalation Respirable. TWA: 10 (mg/m3) from ACGIH
(TLV) [United States]
Inhalation
Total. TWA: 15 (mg/m3) from OSHA (PEL) [United States] Inhalation Total.Consult
local authorities for acceptable exposure limits.
Section
9: Physical and Chemical Properties
Physical
state and appearance: Solid.
(Crystals solid.)
Odor:
Not available.
Taste:
Not available.
Molecular
Weight: 28.09 g/mole
Color:
Dark grey. Brown.
pH
(1% soln/water): Not
applicable.
Boiling
Point: 2355°C (4271°F)
Melting
Point: 1410°C (2570°F)
Critical
Temperature: 4886°C
(8826.8°F)
Specific
Gravity: 2.33 (Water = 1)
Vapor
Pressure: Not applicable.
Vapor
Density: Not available.
Volatility:
Not available.
Odor
Threshold: Not available.
Water/Oil
Dist. Coeff.: Not
available.
Ionicity
(in Water): Not available.
Dispersion
Properties: Not available.
Solubility:
Insoluble in cold water,
hot water.
Section
10: Stability and Reactivity Data
Stability:
The product is stable.
Instability
Temperature: Not
available.
Conditions
of Instability: Heat,
ignition sources, incompatible materials
Incompatibility
with various substances:
Reactive
with oxidizing agents. Slightly reactive to reactive with moisture.
Corrosivity:
Non-corrosive in presence
of glass.
Special
Remarks on Reactivity:
May
react violently or explosively on contact with water. Will react with water or
steam to product hydrogen Incompatible (violent reactions) with chlorine,
fluorine, oxidizers, calcium, carbide, alkali carbonates, iodine pentafluoride,
cobaltic fluoride, rubidium carbide, MnF3, nitrosyl fluoride, AgF. Mixtures of
cesium acetylide with silicon react vigorously on heating. Rubidium
acetylide
reacts vigorously with silicon on warming.
Special
Remarks on Corrosivity: Not
available.
Polymerization:
Will not occur.
Section
11: Toxicological Information
Routes
of Entry: Inhalation.
Ingestion.
Toxicity
to Animals: Acute oral
toxicity (LD50): 3160 mg/kg [Rat].
Chronic
Effects on Humans: Not
available.
Other
Toxic Effects on Humans:
Hazardous
in case of inhalation. Slightly hazardous in case of skin contact (irritant), of
ingestion.
Special
Remarks on Toxicity to Animals: Not
available.
Special
Remarks on Chronic Effects on Humans: Not
available.
Special
Remarks on other Toxic Effects on Humans:
Nuisance
dust. Acute Potential Health Effects: Skin: May cause skin irritation from
frictional action. Eyes: May cause eye irritaiton from frictional action.
Inhalation: May cause respiratory tract irritation. Ingestion: May affect
respiration (respiratory stimulation)
Section
12: Ecological Information
Ecotoxicity:
Not available.
BOD5
and COD: Not available.
Products
of Biodegradation:
Possibly
hazardous short term degradation products are not likely. However, long term
degradation products may arise.
Toxicity
of the Products of Biodegradation: The
product itself and its products of degradation are not toxic.
Special
Remarks on the Products of Biodegradation: Not
available.
Section
13: Disposal Considerations
Waste
Disposal:
Waste
must be disposed of in accordance with federal, state and local environmental
control regulations.
Section
14: Transport Information
DOT
Classification: CLASS 4.1:
Flammable solid.
Identification:
: Silicon powder,
amorphous UNNA: 1346 PG: III
Special
Provisions for Transport: Not
available.
Section
15: Other Regulatory Information
Other
Classifications:
WHMIS
(Canada): CLASS B-4:
Flammable solid.
DSCL
(EEC):
R11-
Highly flammable. S2- Keep out of the reach of children.
HMIS
(U.S.A.):
Health
Hazard: 2
Fire
Hazard: 2
Reactivity:
0
Personal
Protection: E
National
Fire Protection Association (U.S.A.):
Health:
2
Flammability:
2
Reactivity:
1
Specific
hazard:
Protective
Equipment:
Gloves.
Lab coat. Dust respirator. Be sure to use an approved/certified respirator or
equivalent. Wear appropriate respirator when ventilation is inadequate. Safety
glasses.
NILE CEHMCIALS provides the information contained herein
in good faith but makes no representation as to its comprehensiveness or
accuracy. This document is intended only as a guide to the appropriate
precautionary handling of the material by a properly trained person using this
product. Individuals receiving the information must exercise their independent
judgment in determining its appropriateness for a particular purpose. NILE
CHEMICALS MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE
PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, NILE CHEMICALS WILL NOT BE
RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
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