ChemicalBook >>Mucobromic acid>>2,3-Dibromo-4-oxo-2-butenoic acid(488-11-9)

2,3-Dibromo-4-oxo-2-butenoic acid(488-11-9)

2,3-Dibromo-4-oxo-2-butenoic acid(488-11-9)
Product IdentificationBack to Contents
【Product Name】

2,3-Dibromo-4-oxo-2-butenoic acid
【Synonyms】

(Z)-2,3-Dibromo-4-oxobut-2-enoic acid
2-Butenoic acid, 2,3-dibromo-4-oxo-, (2Z)-
Bromomucic acid
Dibromomalealdehydic acid
【CAS】

488-11-9
【Formula】

C4H2Br2O3
【Molecular Weight】

257.88
【EINECS】

207-670-5
【Beilstein/Gmelin】

1705707
【Beilstein Reference】

4-03-00-01721
【EC Class】

corrosive
Physical and Chemical PropertiesBack to Contents
【Appearance】

White flakes.
【Solubility in water】

Very soluble
【Melting Point】

122 - 125
【Boiling Point】

320
【pKa/pKb】

0.83 (pKa)
【Partition Coefficient】

-.01
First Aid MeasuresBack to Contents
【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 to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
【Skin】

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

Immediately 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 or keep eyes closed. Extensive irrigation is required (at least 30 minutes).
Handling and StorageBack to Contents
【Storage】

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
【Handling】

Wash thoroughly after handling. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Use with adequate ventilation. Discard contaminated shoes.
Hazards IdentificationBack to Contents
【Inhalation】

Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects.
【Skin】

Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
【Eyes】

Causes eye burns. May cause chemical conjunctivitis and corneal damage.
【Ingestion】

May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause systemic effects.
【Hazards】

Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】

R 22 34
【EC Safety Phrase】

S 26 36/37/39 45
【UN (DOT)】

3261
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 protective 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】

Effects may be delayed.
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
【Fire Potential】

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
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 oxidizing agents.
【Decomposition】

Carbon monoxide, carbon dioxide, hydrogen bromide.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

3261
【Hazard Class】

8
【Packing Group】

I; II; III
【HS Code】

2918 30 00
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