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3,5-DICHLOROPHENOL ICSC: 0440
Date of Peer Review: November 1998

1-Hydroxy-3,5-dichlorobenzene
CAS # 591-35-5 C6H4Cl2O
RTECS # SK8820000 Molecular mass: 163
UN # 2020
EC Index #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Foam, carbon dioxide, water spray, powder.
EXPLOSION


EXPOSURE
STRICT HYGIENE!

Inhalation Burning sensation. Cough. Sore throat. Further see Ingestion.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin MAY BE ABSORBED! Redness. Pain. Blisters.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes Redness. Pain.
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 Abdominal pain. Burning sensation. Diarrhoea. Dizziness. Headache. Laboured breathing. Nausea. Vomiting. Weakness.
Do not eat, drink, or smoke during work.
Rinse mouth. Rest. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus.
Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
UN Classification
UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61S2020 or 61GT2-III
Provision to contain effluent from fire extinguishing. Separated from oxidants, food and feedstuffs. Ventilation along the floor.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
3,5-DICHLOROPHENOL ICSC: 0440
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive fumes including acid chlorides and acid anhydrides. Reacts with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin.

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20C; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is severely irritating to the eyes, the skin and the respiratory tract. Exposure may result in chloracne.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
See Notes.
PHYSICAL PROPERTIES
Boiling point at 100.9 kPa: 233C
Melting point: 68C
Solubility in water: poor
Vapour pressure, Pa at 25C: about 1
Relative vapour density (air = 1): 5.6
Relative density of the vapour/air-mixture at 20C (air = 1): 1
Octanol/water partition coefficient as log Pow: 3.62-3.68
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. This substance may be hazardous to the environment; special attention should be given to water quality, soil contamination. Bioaccumulation of this chemical may occur aquatic organisms.
NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Also consult ICSC 0438 2,4-dichlorophenol and 0439 2,5-dichlorophenol. Card has been partly updated in October 2005. See section Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005