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Methacryloyl chloride 920-46-7 MSDS
Name: Methacryloyl chloride stabilized tech. 90% Material Safety Data Sheet
Synonym: 2-Methyl-2-propenoyl chloride
CAS: 920-46-7
Section 1 - Chemical Product   MSDS Name:Methacryloyl chloride stabilized tech. 90% Material Safety Data Sheet
Synonym:2-Methyl-2-propenoyl chloride

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
920-46-7 Methacryloyl chloride 90% 213-058-9
Hazard Symbols: T+ F
Risk Phrases: 11 26 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Highly flammable. Very toxic by inhalation. Causes burns.Corrosive.Lachrymator (substance which increases the flow of tears).Highly toxic.Moisture sensitive.Highly flammable.
Potential Health Effects
Eye:
Causes severe eye burns. Lachrymator (substance which increases the flow of tears).
Skin:
Causes severe skin irritation and burns.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Causes gastrointestinal tract burns.
Inhalation:
Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Destroy contaminated shoes.
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. Flammable liquid and vapor. Will be easily ignited by heat, sparks or flame. Containers may explode if exposed to fire. Water hydrolyzes material liberating acidic gas which in contact with metal surfaces can generate flammable and/or explosive hydrogen gas.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide. If water is the only media available, use in flooding amounts. DO NOT USE WATER! Cool containers with flooding quantities of water until well after fire is out.

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.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. 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 sources of ignition. Store in a tightly closed container. Refrigerator/flammables.

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 only under a chemical fume hood.
Exposure Limits CAS# 920-46-7: Russia: 0.3 mg/m3 TWA Personal Protective Equipment 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 protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Clear liquid
Color: Clear slightly coloured liquid
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 95 - 96 deg C @ 760
Freezing/Melting Point: -60 deg C
Autoignition Temperature: Not available.
Flash Point: 2 deg C ( 35.60 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: soluble in most common inert organic sol
Specific Gravity/Density: 1.0760g/cm3
Molecular Formula: H2C=C(CH3)COCl
Molecular Weight: 104.54

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Moisture sensitive. Readily hydrolyzed by moisture. Decomposes in the presence of water to form hydrochloric acid and methacrylic acid. Hazardous polymerization may occur. Contains inhibitor, MEHQ, to prevent polymerization, however it's integrity should be checked periodically.
Conditions to Avoid:
Ignition sources, excess heat, exposure to moist air or water.
Incompatibilities with Other Materials:
Oxidizing agents, strong bases, alcohols, amines, mercaptans, water.
Hazardous Decomposition Products:
Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide, chloride fumes.
Hazardous Polymerization: May occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 920-46-7: OZ5791000 LD50/LC50:
CAS# 920-46-7: Inhalation, mouse: LC50 = 115 mg/m3/2H; Inhalation, rat: LC50 = 60 mg/m3/4H.
Carcinogenicity:
Methacryloyl chloride - 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, TOXIC, CORROSIVE N.O.S.
Hazard Class: 3 (8)
UN Number: 3286
Packing Group: I
IMO
Shipping Name: FLAMMABLE LIQUID, TOXIC, CORROSIVE N.O.S.
Hazard Class: 3 (8)
UN Number: 3286
Packing Group: I
RID/ADR
Shipping Name: FLAMMABLE LIQUID, TOXIC, CORROSIVE N.O.S.
Hazard Class: 3
UN Number: 3286
Packing group: I

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ F
Risk Phrases:
R 11 Highly flammable.
R 26 Very toxic by inhalation.
R 34 Causes burns.
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 28 After contact with skin, wash immediately
with...
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 38 In case of insufficient ventilation, wear
suitable respiratory equipment.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 920-46-7: 1
Canada
CAS# 920-46-7 is listed on Canada's DSL List.
CAS# 920-46-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 920-46-7 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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