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302-17-0

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Identification

Name
Chloral hydrate
CAS
302-17-0
Synonyms
1,1,1-trichloro-2,2-ethanediol
2,2,2-Trichloro-1,1-ethanediol
2,2,2-TRICHLOROETHANE-1,1-DIOL
2,2,2-TRICHLOROETHANE-1,1-DIOL HYDRATE
CHLORAL HYDRATE
'GROUND JOINT SEPARATION AID'
'SCHLIFF-AUF'
TRICHLOROACETALDEHYDE HYDRATE
TRICHLOROACETALDEHYDE MONOHYDRATE
1,1,1-Trichloro-2,2-dihydroxyethane
1,1-Ethanediol, 2,2,2-trichloro-
1,1-Ethanediol,2,2,2-trichloro-
1-Ethanediol,2,2,2-trichloro-1
2,2,2-trichloro-1-ethanediol
Amylofene
Aquachloral
Bi 3411
bi3411
Chloradorm
Chloral monohydrate
EINECS(EC#)
206-117-5
Molecular Formula
C2H3Cl3O2
MDL Number
MFCD00044479
Molecular Weight
165.4
MOL File
302-17-0.mol

Chemical Properties

Appearance
Chloral is a combustible, oily liquid with a pungent irritating odor.
Appearance
colourless crystals with a pentrating odour
mp 
57 °C(lit.)

bp 
97 °C
density 
1.43 g/mL at 20 °C

Fp 
16 °C
storage temp. 
0-6°C
Stability:
Stable, but may be air or light sensitive. Incompatible with alcohols, cyanides, iodine, strong bases, carbonates.
Water Solubility 
660 g/100 mL
Merck 
13,2080
CAS DataBase Reference
302-17-0(CAS DataBase Reference)
NIST Chemistry Reference
Chloral hydrate(302-17-0)
EPA Substance Registry System
302-17-0(EPA Substance)

Safety Data

Hazard Codes 
T,F
Risk Statements 
R25:Toxic if swallowed.
R36/38:Irritating to eyes and skin .
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S25:Avoid contact with eyes .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36/37:Wear suitable protective clothing and gloves .
S16:Keep away from sources of ignition-No smoking .
S27:Take off immediately all contaminated clothing .
RIDADR 
UN 3286 3/PG 2

WGK Germany 
2

RTECS 
FM8750000

HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
29055900
Safety Profile
A human poison by ingestion and possibly other routes. Poison experimentally by ingestion, intravenous, and rectal routes. Moderately toxic by subcutaneous, parenteral, and intraperitoneal routes, Experimental reproductive effects. Human systemic effects by ingestion: general anesthetic, cardiac arrhythmias, blood pressure depression, eye effects, coma, pulse rate increase, arrhythmias. Human mutation data reported. Questionable carcinogen with experimental carcinogenic and tumorigenic data by skin contact. A sedative, anesthetic, and narcotic. Combustible when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Cl-.
Hazardous Substances Data
302-17-0(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

General Description
Transparent colorless crystals or white crystalline solid. Aromatic penetrating slightly acrid odor and a slightly bitter caustic taste. Alcoholic solution (1 in 20) does not at once redden moistened blue litmus paper.
Reactivity Profile
CHLORAL HYDRATE(302-17-0) is incompatible with alkalis, alkaline earth metals, alkali carbonates and soluble barbiturates. CHLORAL HYDRATE(302-17-0) is decomposed by sodium hydroxide. CHLORAL HYDRATE(302-17-0) reduces ammoniacal silver nitrate. CHLORAL HYDRATE(302-17-0) liquefies when triturated with an equal quantity of menthol, camphor or thymol. . Reaction of CHLORAL HYDRATE(302-17-0) with hydroxylamine produces toxic hydrogen cyanide gas, Org. Synth., 1941, Vol. 1, 377.
Air & Water Reactions
Water soluble.
Hazard
Overdose toxic, hypnotic drug, dangerous to eyes. Probable carcinogen.
Potential Exposure
Chloral is used as an intermediate in the manufacture of such pesticides as DDT, methoxychlor, DDVP, naled, trichlorfon, and TCA. Chloral is also used in the production of chloral hydrate; used as a therapeutic agent with hypnotic, sedative, and narcotic effects; used in a time prior to the introduction of barbiturates
Fire Hazard
Flash point data for this chemical are not available; however, CHLORAL HYDRATE is probably combustible.
First aid
Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Incompatibilities
Chloral hydrate reacts with strong bases forming chloroform. Contact with acids, or exposure to light may cause polymerization. Reacts with water, forming chloral hydrate. Reacts with oxidizers, with a risk of fire or explosions.
Waste Disposal
Incineration after mixing with another combustible fuel; care must be taken to assure complete combustion to prevent phosgene formation; an acid scrubber is necessary to remove the halo acids produced.

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