International Chemical Safety Cards

2,4-DICHLOROPHENOL ICSC: 0438
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
2,4-DCP
2,4-Dichlorohydroxybenzene
1-Hydroxy-2,4-dichlorobenzene
C6H4Cl2O
Molecular mass: 163.0
6 Harmful - Stow Away from Foodstuffs placard 6 Poison placard ICSC #    0438
CAS #     120-83-2
RTECS # SK8575000
UN #        2020
EC #         604-011-00-7
June 06, 2010 Validated
Pu, hed in Series 6.
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.
water spray, foam, powder, carbon dioxide
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent build-up of electrostatic charges (e.g., by grounding).

EXPOSURE
PREVENT DISPERSION OF DUST! PREVENT GENERATION OF MISTS! AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
 •INHALATION Sore throat. Cough. Burning sensation behind the breastbone. Shortness of breath. Laboured breathing. Further see Ingestion.
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Refer immediately for medical attention.
 •SKIN MAY BE ABSORBED! Redness. Pain. Blisters. (Further see Inhalation).
Protective gloves. Protective clothing.
Wear protective gloves when administering first aid. Remove contaminated clothes. (See Notes). To remove substance use polyethylene glycol 400 or vegetable oil. Rinse skin with plenty of water or shower. Refer immediately for medical attention.
 •EYES Redness. Pain. Severe burns. vere corneal damage)
Face shield and eye protection in combination with breathing protection.
Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.
 •INGESTION Burns in mouth and throat. Abdominal pain. Tremor. Convulsions. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Personal protection: Chemical protection suit including self-contained breathing apparatus. 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.
Fireproof. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. Separated from strong oxidants, food and feedstuffs . Ventilation along the floor. 22309000
Do not transport with food and feedstuffs.
T symbol
N symbol
R: 22-24-34-51/53
S: 1/2-26-36/37/39-45-61
UN Hazard Class: 6.1
UN Packing Group: III
Signal: Danger
Corr-Skull-Health haz-Enviro
Harmful if swallowed
Toxic in contact with skin
Causes severe skin burns and eye damage
Causes damage to the central nervous system
May cause damage to the respiratory system if inhaled
Toxic to aquatic life with long-lasting effects
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0438 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

2,4-DICHLOROPHENOL ICSC: 0438
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PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. Wiley's Guide to Incombatible chemicals, 3rd ed.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including chlorine , hydrogen chloride, and on burning phosgene and dioxins. Reacts violently with acids and strong oxidants . ESTIS

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Serious local effects by all routes of exposure. ermal LD50 790mg/kg

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

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. The hot liquid may cause severe skin burns. Exposure to the molten substance may result in extensive skin absorption and rapid death. Inhalation of the vapour may cause lung oedema (see Notes). Medical observation is indicated. The substance may cause effects on the central nervous system

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
nce is possibly carcinogenic to humans.
PHYSICAL
PROPERTIES
Boiling point: 210.0C
Melting point: 45.0C
Density: 1.4
g/cm
Solubility in water, g/100 ml at 20C: 0.45
(poor)
Vapour pressure, Pa at 20C: 10
Relative vapour density (air = 1): 5.6
Relative density of the vapour/air-mixture at 20C (air = 1): 1.00
Flashpoint: 113C c.c.
Auto-ignition temperature: 500C
Octanol/water partition coefficient as log Pow: 3.17
ENVIRONMENTAL
DATA
Environmental Hazard placard The substance is toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal. des.
N O T E S
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. Isolate contaminated clothing by sealing in a bag or other container.
NFPA Code: H3; F1; R0.
ADDITIONAL INFORMATION


ICSC: 0438 2,4-DICHLOROPHENOL
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.