Name:
Crotonaldehyde
Synonym:
2-Butenal; Crotonic aldehyde; beta-Methylacrolein
CAS:
4170-30-3
Section 1 - Chemical Product
MSDS Name:Crotonaldehyde
Synonym:2-Butenal; Crotonic aldehyde; beta-Methylacrolein
Synonym:2-Butenal; Crotonic aldehyde; beta-Methylacrolein
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 4170-30-3 | Crotonaldehyde | 100 | 224-030-0 |
| Hazard Symbols: T+ F N Risk Phrases: 11 26 37/38 41 24/25 50 48/22 68 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Highly flammable. Very toxic by inhalation. Irritating to respiratory system and skin. Risk of serious damage to eyes. Toxic in contact with skin and if swallowed. Very toxic to aquatic organisms. Harmful : danger of serious damage to health by prolonged exposure if swallowed.Possible risk of irreversible effects.Air sensitive.Lachrymator (substance which increases the flow of tears).Light sensitive.
Potential Health Effects
Eye:
Causes severe eye irritation. May cause eye injury. Lachrymator (substance which increases the flow of tears).
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May be fatal if inhaled. Causes respiratory tract irritation.
Chronic:
Chronic inhalation may cause effects similar to those of acute inhalation.
Highly flammable. Very toxic by inhalation. Irritating to respiratory system and skin. Risk of serious damage to eyes. Toxic in contact with skin and if swallowed. Very toxic to aquatic organisms. Harmful : danger of serious damage to health by prolonged exposure if swallowed.Possible risk of irreversible effects.Air sensitive.Lachrymator (substance which increases the flow of tears).Light sensitive.
Potential Health Effects
Eye:
Causes severe eye irritation. May cause eye injury. Lachrymator (substance which increases the flow of tears).
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May be fatal if inhaled. Causes respiratory tract irritation.
Chronic:
Chronic inhalation may cause effects similar to those of acute inhalation.
Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Discard contaminated clothing in a manner which limits further exposure.
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 not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Discard contaminated clothing in a manner which limits further exposure.
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 not breathing, give artificial respiration. If breathing is difficult, give oxygen.
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. Use water spray to keep fire-exposed containers cool. Flammable liquid and vapor. May be ignited by heat, sparks, and flame. Containers may explode when heated. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas. Fight fire from protected location or maximum possible distance.
Extinguishing Media:
Use water spray, dry chemical, "alcohol resistant" foam, or carbon dioxide.
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. Use water spray to keep fire-exposed containers cool. Flammable liquid and vapor. May be ignited by heat, sparks, and flame. Containers may explode when heated. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas. Fight fire from protected location or maximum possible distance.
Extinguishing Media:
Use water spray, dry chemical, "alcohol resistant" foam, or carbon dioxide.
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. Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces. Evacuate unnecessary personnel.
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. Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces. Evacuate unnecessary personnel.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Do not get in eyes, on skin, or on clothing. 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 ingest or inhale. 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. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store near alkaline substances. Store under an inert atmosphere.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Do not get in eyes, on skin, or on clothing. 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 ingest or inhale. 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. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store near alkaline substances. Store under an inert atmosphere.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 4170-30-3: United States OSHA: 2 ppm TWA; 6 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.8 mg/m3 VLE Germany: 0.34 ppm TWA; 1 mg/m3 TWA Germany: Skin absorber Malaysia: 0.3 ppm Ceiling; 0.855 mg/m3 Ceiling Personal Protective Equipment Eyes: Wear chemical splash goggles.
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. 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 adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 4170-30-3: United States OSHA: 2 ppm TWA; 6 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.8 mg/m3 VLE Germany: 0.34 ppm TWA; 1 mg/m3 TWA Germany: Skin absorber Malaysia: 0.3 ppm Ceiling; 0.855 mg/m3 Ceiling Personal Protective Equipment Eyes: Wear chemical splash goggles.
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. 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: colorless to yellow
Odor: Pungent, suffocating odor.
pH: Not available.
Vapor Pressure: 30 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 104 deg C
Freezing/Melting Point: -76 deg C
Autoignition Temperature: 450 deg F ( 232.22 deg C)
Flash Point: 55 deg F ( 12.78 deg C)
Explosion Limits, lower: 2.1
Explosion Limits, upper: 15.5
Decomposition Temperature: Not available.
Solubility in water: Partially soluble.
Specific Gravity/Density: 0.853
Molecular Formula: C4H6O
Molecular Weight: 70.0414
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
May form explosive peroxides on contact with air or may undergo hazardous polymerization without an inhibitor.
Conditions to Avoid:
High temperatures, ignition sources, loss of inhibitor.
Incompatibilities with Other Materials:
Reacts violently with 1,3-butadiene. Violent hypergolic reaction with concentrated nitric acid. Can react with oxidizers, ammonia and bases. Polymerization may be caused by elevated temperatures and alkalies.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: May occur.
May form explosive peroxides on contact with air or may undergo hazardous polymerization without an inhibitor.
Conditions to Avoid:
High temperatures, ignition sources, loss of inhibitor.
Incompatibilities with Other Materials:
Reacts violently with 1,3-butadiene. Violent hypergolic reaction with concentrated nitric acid. Can react with oxidizers, ammonia and bases. Polymerization may be caused by elevated temperatures and alkalies.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: May occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 4170-30-3: GP9499000 LD50/LC50:
CAS# 4170-30-3: Dermal, guinea pig: LD50 = 30 uL/kg; Inhalation, mouse: LC50 = 580 mg/m3/2H; Inhalation, rat: LC50 = 200 mg/m3/2H; Inhalation, rat: LC50 = 9600 mg/m3/5M; Inhalation, rat: LC50 = 4800 mg/m3/10M; Inhalation, rat: LC50 = 2400 mg/m3/15M; Inhalation, rat: LC50 = 1700 mg/m3/30M; Inhalation, rat: LC50 = 1100 mg/m3/60M; Inhalation, rat: LC50 = 300 mg/m3/4H; Oral, mouse: LD50 = 104 mg/kg; Oral, rat: LD50 = 80 mg/kg; Skin, rabbit: LD50 = 380 uL/kg.
Carcinogenicity:
Crotonaldehyde - ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to Other:
See actual entry in RTECS for complete information.
CAS# 4170-30-3: GP9499000 LD50/LC50:
CAS# 4170-30-3: Dermal, guinea pig: LD50 = 30 uL/kg; Inhalation, mouse: LC50 = 580 mg/m3/2H; Inhalation, rat: LC50 = 200 mg/m3/2H; Inhalation, rat: LC50 = 9600 mg/m3/5M; Inhalation, rat: LC50 = 4800 mg/m3/10M; Inhalation, rat: LC50 = 2400 mg/m3/15M; Inhalation, rat: LC50 = 1700 mg/m3/30M; Inhalation, rat: LC50 = 1100 mg/m3/60M; Inhalation, rat: LC50 = 300 mg/m3/4H; Oral, mouse: LD50 = 104 mg/kg; Oral, rat: LD50 = 80 mg/kg; Skin, rabbit: LD50 = 380 uL/kg.
Carcinogenicity:
Crotonaldehyde - ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: CROTONALDEHYDE, STABILISED
Hazard Class: 6.1
UN Number: 1143
Packing Group: I
IMO
Shipping Name: CROTONALDEHYDE, STABILISED
Hazard Class: 6.1
UN Number: 1143
Packing Group: I
RID/ADR
Shipping Name: CROTONALDEHYDE, STABILISED
Hazard Class: 6.1
UN Number: 1143
Packing group: I
USA RQ: CAS# 4170-30-3: 100 lb final RQ; 45.4 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ F N
Risk Phrases:
R 11 Highly flammable.
R 24/25 Toxic in contact with skin and if swallowed.
R 26 Very toxic by inhalation.
R 37/38 Irritating to respiratory system and skin.
R 41 Risk of serious damage to eyes.
R 48/22 Harmful : danger of serious damage to health
by prolonged exposure if swallowed.
R 50 Very toxic to aquatic organisms.
R 68 Possible risk of irreversible effects.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 4170-30-3: 3
Canada
CAS# 4170-30-3 is listed on Canadas DSL List.
CAS# 4170-30-3 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 4170-30-3 is listed on the TSCA inventory.
