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Silica glass(60676-86-0)

Silica glass(60676-86-0)
Product IdentificationBack to Contents
【Product Name】

Silica glass
【Synonyms】

Fused silica
【CAS】

60676-86-0
【Formula】

O2Si
【Molecular Weight】

60.08
【EINECS】

262-373-8
【RTECS】

VV7328000
【RTECS Class】

Agricultural Chemical and Pesticide; Tumorigen
【Beilstein/Gmelin】

9357 (G)
Physical and Chemical PropertiesBack to Contents
【Appearance】

Colorless, odorless solid.
【Solubility in water】

Insoluble
【Melting Point】

1710
【Boiling Point】

2230
【Density】

2.196 g/cm3 (20 C)
【Usage】

Vitreous or fused silica is used as laboratory glassware in chemical laboratories and in the semiconductor industry; thin-film dielectric coating in integrated circuits; electric-resistance furnaces and radiant heaters, and protection of precious-metal themocouples; as a refractive optical material, used for prisms, camera lenses, cells, solar cell covers, spacecraft windows, and other optical components; in mirror blanks of astronomical telescopes; as a component of laser optics; as an envelope material for mercury-vapour and incandescent tungsten-halogen cycle lamps; as a chromatography substitute, inert filler or as a coating material in the investment-cast industry; insulation or packing material.
First Aid MeasuresBack to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
【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】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and StorageBack to Contents
【Storage】

Store in a cool, dry place. Keep container closed when not in use.
【Handling】

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Inhalation】

May cause respiratory tract irritation. May cause lung damage. Contains crystalline silica which may lead to respiratory abnormalities and silicosis.
【Skin】

May cause skin irritation.
【Eyes】

May cause eye irritation.
【Ingestion】

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
【Exposure Effects】

Chronic inhalation of dust may lead to silicosis.
【Poison Class】

F (Not subject to toxicity classification)
Fire Fighting MeasuresBack to Contents
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Use agent most appropriate to extinguish fire.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability and ReactivityBack to Contents
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong acids - moisture.
【Decomposition】

Irritating and toxic fumes and gases, silicon oxide.
Transport InformationBack to Contents
【HS Code】

2811 22 00
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