ChemicalBook >>Trichloroacetic acid>>TCA(76-03-9)

TCA(76-03-9)

TCA(76-03-9)
Product IdentificationBack to Contents
【Product Name】

TCA
【Synonyms】

2,2,2-Trichloroacetic acid
Aceto Caustin
Aceto-Caustin
Amchem Grass Killer
TCA
Trichloroethanoic acid
【CAS】

76-03-9
【Formula】

C2HCl3O2
【Molecular Weight】

163.38999999999999
【EINECS】

200-927-2
【RTECS】

AJ7875000
【RTECS Class】

Agricultural Chemical and Pesticide; Tumorigen; Drug; Mutagen; Reproductive Effector; Primary Irritant
【Merck】

12,9756
【Beilstein/Gmelin】

970119
【Beilstein Reference】

4-02-00-00508
【EC Index Number】

607-004-00-7
【EC Class】

Corrosive; Dangerous for the Environment
Physical and Chemical PropertiesBack to Contents
【Appearance】

Colorless to slightly yellow crystals with a sharp, pungent odor, deliquescent.
【Solubility in water】

Miscible
【Solubility in water】

Very soluble
【Melting Point】

54 - 56
【Boiling Point】

196
【Vapor Pressure】

0.17 (25 C)
【Density】

1.605 g/cm3 (25 C)
【Density】

1.62 g/cm3 (25 C)
【pKa/pKb】

1.1 (pKa)
【pKa/pKb】

1.10 (pKa)
【Partition Coefficient】

1.33
【Heat Of Vaporization】

47.7 kJ/mol
【Heat Of Combustion】

-389 kJ/mol
【Usage】

Herbicide.
【Saturation Concentration】

Low; 1300 ppm (0.13%) at 51 C (calculated)
【Vapor Density】

5.6
【Refractive Index】

1.4775 (20 C)
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.
【Ingestion】

Harmful if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
【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.
【Inhalation】

Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma.
【Skin】

Causes skin burns.
【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】

Causes severe eye burns.
【Eyes】

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】

Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Keep away from strong bases.
【Handling】

Wash thoroughly after handling. Use only in a well ventilated area. 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 only in a chemical fume hood. Wash clothing before reuse.
Hazards IdentificationBack to Contents
【Inhalation】

Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma.
【Skin】

Causes skin burns.
【Eyes】

Causes severe eye burns.
【Ingestion】

Harmful if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
【Hazards】

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
【EC Risk Phrase】

R 35 50/53
【EC Safety Phrase】

S 26 36/37/39 45 60 61
【UN (DOT)】

1839
【UN (DOT)】

2564
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 prevent skin exposure.
【Respirators】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【Exposure Effects】

Abnormal neuropsychologic function has been reported following hydrochloric acid exposure from a leaking tanker truck.
【Exposure limit(s)】

NIOSH REL: TWA 1 ppm (7 mg/m3)
【Poison Class】

2
Fire Fighting MeasuresBack to Contents
【Flash Point】

66
【Fire Fighting】

Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
【Fire Potential】

May burn but does not ignite readily.
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. Neutralize spill with sodium bicarbonate. Provide ventilation.
Stability and ReactivityBack to Contents
【Disposal Code】

4
【Incompatibilities】

Reacts dangerously with bases, strong oxidizers, and alkali metals such sodium, potassium, and calcium.
【Stability】

Stable at room temperature in closed containers under normal storage and handling conditions.
【Decomposition】

Hydrogen chloride, irritating and toxic fumes and gases, chlorine, phosgene gas, chloroform.
【Combustion Products】

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

1839
【UN Number】

2564
【Hazard Class】

8
【Packing Group】

II
【HS Code】

2915 40 00
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