ICSC 0075 - (2,4,5-TRICHLOROPHENOXY) ACETIC ACID

« back to the search result list

(2,4,5-TRICHLOROPHENOXY) ACETIC ACID	ICSC: 0075 (April 2005)
2,4,5-T

CAS #: 93-76-5

UN #: 3345

EC Number: 202-273-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible under specific conditions. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Use water spray, powder.

See Notes. PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Diarrhoea. Drowsiness. Headache. Nausea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Store in an area without drain or sewer access.
PACKAGING
Do not transport with food and feedstuffs.

(2,4,5-TRICHLOROPHENOXY) ACETIC ACID

ICSC: 0075

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALLINE POWDER. Physical dangers Chemical dangers Decomposes on heating and on burning. This produces toxic and corrosive gases including phosgene (see ICSC 0007) and hydrogen chloride (see ICSC 0163). The solution in water is a weak acid.	Formula: C₈H₅Cl₃O₃ / C₆H₂Cl₃OCH₂COOH Molecular mass: 255.5 Boiling point: No boiling point at normal pressure; decomposes on heating Melting point: 153-158°C Density: 1.80 g/cm³ Solubility in water, g/100ml at 25°C: 0.03 Vapour pressure at 25°C: negligible Octanol/water partition coefficient as log Pow: 4

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALLINE POWDER.

Physical dangers

Chemical dangers
Decomposes on heating and on burning. This produces toxic and corrosive gases including phosgene (see ICSC 0007) and hydrogen chloride (see ICSC 0163). The solution in water is a weak acid.

Formula: C₈H₅Cl₃O₃ / C₆H₂Cl₃OCH₂COOH
Molecular mass: 255.5
Boiling point: No boiling point at normal pressure; decomposes on heating
Melting point: 153-158°C
Density: 1.80 g/cm³
Solubility in water, g/100ml at 25°C: 0.03
Vapour pressure at 25°C: negligible
Octanol/water partition coefficient as log Pow: 4

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and respiratory tract.	Inhalation risk A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered. Effects of long-term or repeated exposure Animal tests show that this substance possibly causes toxicity to human reproduction or development.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered.

Effects of long-term or repeated exposure
Animal tests show that this substance possibly causes toxicity to human reproduction or development.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m³, as TWA; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 2 mg/m³; peak limitation category: II(2); skin absorption (H); pregnancy risk group: C

ENVIRONMENT
The substance is very toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

NOTES
Temperature of decomposition is unknown in the literature. Commercial products may contain toxic dioxin (see ICSC 1467 2,3,7,8-TCDD). If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s). Carrier solvents used in commercial formulations may change physical and toxicological properties. The recommendations on this card also apply to salts of 2,4,5-Trichlorophenoxyacetic acid.

NOTES

Temperature of decomposition is unknown in the literature.
Commercial products may contain toxic dioxin (see ICSC 1467 2,3,7,8-TCDD).
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).
Carrier solvents used in commercial formulations may change physical and toxicological properties.
The recommendations on this card also apply to salts of 2,4,5-Trichlorophenoxyacetic acid.

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn, N; R: 22-36/37/38-50/53; S: (2)-24-60-61

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.