Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Silicon dioxide(14808-60-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Silicon dioxide
Synonyms
Samd
Silicic anhydride
Silicon dioxide
CAS
14808-60-7
Formula
O2Si
Molecular Weight
60.08
EINECS
238-878-4
RTECS
VV7330000
RTECS Class
Tumorigen; Mutagen; Human Data
Beilstein/Gmelin
13882 (G)

Physical and Chemical Properties

Appearance
Colorless, white or variable, black, purple, green crystals.
Solubility in water
Insoluble
Melting Point
1427
Boiling Point
2230
Vapor Pressure
10 at 1732 C
Density
2.622 - 2.645 g/cm3
Usage
Used in mining, quarrying, tunnelling, foundries. Used in the fabrication of stone and clay products; the manufacture of glass, enamels, ceramic products and glazes; as an abrasive and grinding media.

First Aid Measures

Ingestion
Treat symptomatically and supportively. Get medical aid.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a dry area.
Handling
Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
Dust is irritating to the respiratory tract.
Skin
Dust may cause mechanical irritation.
Eyes
Dust may cause mechanical irritation.
Ingestion
May cause irritation of the digestive tract.
EC Safety Phrase
S 22

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear dust goggles. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149. Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Prolonged exposure to respirable crystalline quartz may cause delayed lung injury/fibrosis (silicosis).
Exposure limit(s)
NIOSH REL: Ca TWA 0.05 mg/m3 See Appendix A NIOSH IDLH: Potential occupational carcinogen 25 mg/m3 (cristobalite, tridymite); 50 mg/m3 (quartz, tripoli)
Poison Class
F (Not subject to toxicity classification)

Fire Fighting Measures

Fire Fighting
Not flammable. Use extinguishing media and protective equipment most appropriate for surrounding fire.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

Stability and Reactivity

Incompatibilities
Dissolves readily in hydrofluoric acid, forming silicon tetrafluoride, a corrosive gas. Reacts violently with powerful oxidizers such as chlorine trifluoride, manganese trifluoride, oxygen difluoride, vinyl acetate, and certain other fluorine-containing compounds. Will be attacked by strong alkalis.
Stability
Stable under normal shipping and handling conditions.
Decomposition
Irritating and toxic gases.

Transport Information

HS Code
2506 10 00
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