MSDS Name:Crotonic acid 98%
Synonym:trans-2-Butenoic acid; trans-3-Methylacrylic acid

EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Causes redness and pain. Causes eye irritation and possible burns.
May cause chemical conjunctivitis.
Skin:
Causes skin irritation. Causes redness and pain. May be harmful if absorbed through the skin.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. May be harmful if inhaled.
Chronic:
No information found.

Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. 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.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

General Information:
As in any fire, 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. Will burn if involved in a fire.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 107-93-7: 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 and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
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.

Physical State: Flakes
Color: white to light yellow
Odor: pungent odor
pH: 3 (10g/l aq sol.)
Vapor Pressure: 0.25 mbar @ 20
Viscosity: Not available.
Boiling Point: 185-199 deg C @ 760.00mm Hg
Freezing/Melting Point: 70 - 73 deg C
Autoignition Temperature: 396 deg C ( 744.80 deg F)
Flash Point: 88 deg C ( 190.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 210 deg C
Solubility in water: 94 G/L IN WATER (25C)
Specific Gravity/Density:
Molecular Formula: C4H6O2
Molecular Weight: 86.09

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation, excess heat.
Incompatibilities with Other Materials:
Strong bases, strong oxidizing agents, reducing agents, peroxides.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

RTECS#:
CAS# 107-93-7: GQ2900000 LD50/LC50:
Not available.
Carcinogenicity:
Crotonic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Dispose of in a manner consistent with federal, state, and local regulations.

IATA
Shipping Name: CROTONIC ACID, SOLID
Hazard Class: 8
UN Number: 2823
Packing Group: III
IMO
Shipping Name: CROTONIC ACID
Hazard Class: 8
UN Number: 2823
Packing Group: III
RID/ADR
Shipping Name: CROTONIC ACID, SOLID
Hazard Class: 8
UN Number: 2823
Packing group: III

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 107-93-7: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 107-93-7 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 107-93-7 is not listed on the TSCA inventory.
It is for research and development use only.