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NIOSH

CHLORAL HYDRATE

ICSC: 0234

Trichloroacetaldehyde monohydrate
2,2,2-Trichloro-1,1-ethanediol
C2H3Cl3O2 / Cl3CCH(OH)2
Molecular mass: 165.4
ICSC # 0234 		CAS # 302-17-0
RTECS # FM8750000
UN # 2811
EC # 605-014-00-6
October 20, 1999 Validated

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

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION Confusion. Drowsiness. Nausea. Unconsciousness.
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
•SKIN Redness.
Protective gloves.
Rinse skin with plenty of water or shower.
•EYES Redness.
Safety spectacles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. Vomiting. (Further see Inhalation).
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

STORAGE

PACKAGING & LABELLING

Personal protection: P3 filter respirator for toxic particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place.
Separated from strong bases, food and feedstuffs .
Do not transport with food and feedstuffs.
T symbol
R: 25-36/38
S: 1/2-25-45
UN Hazard Class: 6.1
ICSC: 0234 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.

CHLORAL HYDRATE

ICSC: 0234

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
TRANSPARENT COLOURLESS CRYSTALS , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride . Reacts withstrong bases producing chloroform.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol 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 irritating to the eyes , the skin and the respiratory tract . The substance may cause effects on the central nervous system , cardiovascular system , liver and kidneys , resulting in lowering of consciousness , cardiac disorders and impaired functions . Exposure at high levels may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point (decomposes): 97°C
Melting point: 57-60°C
Density: 1.9
g/cm3
Solubility in water:
very good
Octanol/water partition coefficient as log Pow: 0.99

ENVIRONMENTAL
DATA

This substance may be hazardous to the environment; special attention should be given to water organisms.

N O T E S

Use of alcoholic beverages enhances the harmful effect. Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-61GT2-II

ADDITIONAL INFORMATION



ICSC: 0234 CHLORAL HYDRATE
(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.
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