Name:
Mixture of dichlorodimethylsilane and silicon(iv)chloride (86 and
Synonym:
CAS:
75-78-5
Section 1 - Chemical Product
MSDS Name:Mixture of dichlorodimethylsilane and silicon(iv)chloride (86 and
Synonym:
Synonym:
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 75-78-5 | Dichlorodimethylsilane | 86 | 200-901-0 |
| Hazard Symbols: XI F Risk Phrases: 11 14 36/37/38 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Highly flammable. Reacts violently with water. Irritating to eyes, respiratory system and skin.Moisture sensitive.Lachrymator (substance which increases the flow of tears).Extremely flammable.Water-reactive.
Potential Health Effects
Eye:
Causes severe eye irritation. Lachrymator (substance which increases the flow of tears).
Skin:
Causes severe skin irritation.
Ingestion:
Causes gastrointestinal tract irritation.
Inhalation:
Vapors may cause dizziness or suffocation. Harmful if inhaled.
Causes irritation of the mucous membrane.
Chronic:
No information found.
Highly flammable. Reacts violently with water. Irritating to eyes, respiratory system and skin.Moisture sensitive.Lachrymator (substance which increases the flow of tears).Extremely flammable.Water-reactive.
Potential Health Effects
Eye:
Causes severe eye irritation. Lachrymator (substance which increases the flow of tears).
Skin:
Causes severe skin irritation.
Ingestion:
Causes gastrointestinal tract irritation.
Inhalation:
Vapors may cause dizziness or suffocation. Harmful if inhaled.
Causes irritation of the mucous membrane.
Chronic:
No information found.
Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Do not induce vomiting. 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 and move to fresh air immediately. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Do not induce vomiting. 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 and move to fresh air immediately. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid and vapor. Containers may explode in the heat of a fire. May ignite or explode on contact with steam or moist air. Will be easily ignited by heat, sparks or flame. Contact with water forms corrosive vapors.
Extinguishing Media:
Use dry sand or earth to smother fire. Use water spray to cool fire-exposed containers. Use agent most appropriate to extinguish fire. DO NOT USE WATER! Do NOT get water inside containers. Contact professional fire-fighters immediately. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid and vapor. Containers may explode in the heat of a fire. May ignite or explode on contact with steam or moist air. Will be easily ignited by heat, sparks or flame. Contact with water forms corrosive vapors.
Extinguishing Media:
Use dry sand or earth to smother fire. Use water spray to cool fire-exposed containers. Use agent most appropriate to extinguish fire. DO NOT USE WATER! Do NOT get water inside containers. Contact professional fire-fighters immediately. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Do not get water on spilled substances or inside containers.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Do not get water on spilled substances or inside containers.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not allow water to get into the container because of violent reaction. Ground and bond containers when transferring material. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale. Do not allow contact with water.
Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Flammables-area.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not allow water to get into the container because of violent reaction. Ground and bond containers when transferring material. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale. Do not allow contact with water.
Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Flammables-area.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 75-78-5: CAS# 10026-04-7: United Kingdom, WEL - TWA: (listed as silica, amorphous): 6 mg/m3 (inhalable dust); 2.4 mg/m3 TWA (respirable dust) United Kingdom, WEL - STEL: (listed as silica, amorphous): 18 mg/ STEL (inhalable dust); 7.2 mg/m3 STEL (respirable dust) Russia: (listed as silica, amorphous): 1 mg/m3 TWA Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 75-78-5: CAS# 10026-04-7: United Kingdom, WEL - TWA: (listed as silica, amorphous): 6 mg/m3 (inhalable dust); 2.4 mg/m3 TWA (respirable dust) United Kingdom, WEL - STEL: (listed as silica, amorphous): 18 mg/ STEL (inhalable dust); 7.2 mg/m3 STEL (respirable dust) Russia: (listed as silica, amorphous): 1 mg/m3 TWA Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: Not available.
Odor: suffocating odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: 420 deg C ( 788.00 deg F)
Flash Point: -9 deg C ( 15.80 deg F)
Explosion Limits, lower: 1.80 vol %
Explosion Limits, upper: .00 vol %
Decomposition Temperature:
Solubility in water: reacts with water
Specific Gravity/Density:
Molecular Formula:
Molecular Weight:
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Combines vigorously or explosively with water. Reacts violently with water and alcohols. Reacts violently with K+ and Na+.
Conditions to Avoid:
Incompatible materials, ignition sources, moisture, metals, excess heat, strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, strong bases, alcohols, amines.
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, carbon dioxide, hydrogen gas, silicon dioxide.
Hazardous Polymerization: Has not been reported.
Combines vigorously or explosively with water. Reacts violently with water and alcohols. Reacts violently with K+ and Na+.
Conditions to Avoid:
Incompatible materials, ignition sources, moisture, metals, excess heat, strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, strong bases, alcohols, amines.
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, carbon dioxide, hydrogen gas, silicon dioxide.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 75-78-5: VV3150000 CAS# 10026-04-7: VW0525000 LD50/LC50:
CAS# 75-78-5: Draize test, rabbit, eye: 5 mg/24H Severe; Draize test, rabbit, skin: 20 mg/24H Moderate; Inhalation, mouse: LC50 = 300 mg/m3/2H; Inhalation, rat: LC50 = 930 ppm/4H; Oral, rat: LD50 = 5660 uL/kg.
CAS# 10026-04-7: Draize test, rabbit, eye: 20 mg/24H Moderate; Draize test, rabbit, skin: 500 mg/24H Severe; Inhalation, rat: LC50 = 8000 ppm/4H.
Carcinogenicity:
Dichlorodimethylsilane - Not listed by ACGIH, IARC, or NTP.
Silicon tetrachloride - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 75-78-5: VV3150000 CAS# 10026-04-7: VW0525000 LD50/LC50:
CAS# 75-78-5: Draize test, rabbit, eye: 5 mg/24H Severe; Draize test, rabbit, skin: 20 mg/24H Moderate; Inhalation, mouse: LC50 = 300 mg/m3/2H; Inhalation, rat: LC50 = 930 ppm/4H; Oral, rat: LD50 = 5660 uL/kg.
CAS# 10026-04-7: Draize test, rabbit, eye: 20 mg/24H Moderate; Draize test, rabbit, skin: 500 mg/24H Severe; Inhalation, rat: LC50 = 8000 ppm/4H.
Carcinogenicity:
Dichlorodimethylsilane - Not listed by ACGIH, IARC, or NTP.
Silicon tetrachloride - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.*
Hazard Class: 3 (8)
UN Number: 2924
Packing Group: II
IMO
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.
Hazard Class: 3.2 (8)
UN Number: 2924
Packing Group: II
RID/ADR
Shipping Name: FLAMMABLE LIQUID, CORROSIVE, N.O.S.
Hazard Class: 3
UN Number: 2924
Packing group: II
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI F
Risk Phrases:
R 11 Highly flammable.
R 14 Reacts violently with water.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 30 Never add water to this product.
S 33 Take precautionary measures against static
discharges.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 75-78-5: No information available.
CAS# 10026-04-7: 1
Canada
CAS# 75-78-5 is listed on Canadas DSL List.
CAS# 10026-04-7 is listed on Canadas DSL List.
CAS# 75-78-5 is listed on Canadas Ingredient Disclosure List.
CAS# 10026-04-7 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 75-78-5 is listed on the TSCA inventory.
CAS# 10026-04-7 is listed on the TSCA inventory.
