ICSC 0586 - TRICHLOROACETIC ACID

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

TRICHLOROACETIC ACID

ICSC: 0586
_{November 1998}

Trichloroethanoic acid
Aceto-caustin
TCA

CAS No: 76-03-9
RTECS No: AJ7875000
UN No: 1839
EC No: 607-004-00-7

C₂HCl₃O₂ / CCl₃COOH
Molecular mass: 163.4

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE		AVOID ALL CONTACT!	IN ALL CASES CONSULT A DOCTOR!
Inhalation	Sore throat. Cough. Burning sensation. Headache. Nausea. Vomiting. Shortness of breath. Laboured breathing. Symptoms may be delayed (see Notes).	Ventilation (not if powder), local exhaust, or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin	Pain. Redness. Blisters. Skin burns.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes	Pain. Redness. Severe deep burns.	Face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Burning sensation. Abdominal pain. Shock or collapse.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Rest. Refer for medical attention. See Notes.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into water filled containers; if appropriate, moisten first to prevent dusting. Cautiously neutralize remainder with alkali such as sodium bicarbonate, sodium hydroxide. Then wash away with plenty of water. Personal protection: complete protective clothing including self-contained breathing apparatus.	C Symbol N Symbol R: 35-50/53 S: (1/2-)26-36/37/39-45-60-61 UN Hazard Class: 8 UN Pack Group: II	Unbreakable packaging; put breakable packaging into closed unbreakable container.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC4-II+III	Separated from food and feedstuffs. See Chemical Dangers. Cool. Dry. Well closed. Keep in a well-ventilated room.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS HYGROSCOPIC CRYSTALS, WITH PUNGENT ODOUR.

Chemical dangers
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride and chloroform. The solution in water is a strong acid, it reacts violently with bases and is corrosive to many metals.

Occupational exposure limits
TLV: 1 ppm as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2005).
MAK: IIb (not established but data is available); (DFG 2005).

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

Effects of short-term exposure
The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of vapour may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 198°C Melting point: 58°C Density: 1.6 g/cm³ Solubility in water: very good Vapour pressure, Pa at 51°C: 133 Relative vapour density (air = 1): 5.6 Octanol/water partition coefficient as log Pow: 1.7

NOTES

The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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