General Description
A clear colorless liquid with a pungent odor. Flash point about 190°F. Corrosive to skin and mucous membranes. 2-CHLOROETHANAL(107-20-0) is very toxic by inhalation.
Reactivity Profile
2-CHLOROETHANAL polymerizes on standing. At greater than 50% concentration in water, 2-CHLOROETHANAL forms an insoluble hemihydrate. Sensitive to heat. Reacts with oxidizing agents. Incompatible with acids and water . Burns to give poisonous and irritating gases.
Air & Water Reactions
Soluble in water. Forms an insoluble hemihydrate at greater than 50% concentration.
Hazard
Corrosive to skin and mucous membranes.
TLV: ceiling 1 ppm.
Health Hazard
Poisonous; may be fatal if inhaled, swallowed or absorbed through the skin. Overexposure causes intense irritation and edema of the eyes, mucous membranes, respiratory tract, and skin. Prolonged exposure causes tissue destruction, chemical burns and residual scarring. The eyes may experience permanent damage.
Potential Exposure
Chloroacetaldehyde is used as a fungicide; as an intermediate in 2-aminothiazole manufacture;
and in bark removal from tree trunks.
First aid
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
30 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit.
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
UN22322-Chloroethanal, Hazard class: 6.1;
Labels: 6.1-Poison Inhalation Hazard, Inhalation Hazard
Zone B.
Incompatibilities
Heat and water sensitive; concentrations
of .50% form insoluble hemihydrate material on contact
with water. Reacts with oxidizers, acids. On heating,chloroacetaldehyde releases chlorine fumes. Polymerizable
upon standing
Description
oroacetaldehyde is a combustible, color?less liquid with a very sharp, irritating odor. Molecularweight=78.50; Specific gravity (H2O:1)=1.19 (40%solution); Boiling point=85 100℃; Freezing/Meltingpoint=16℃(40% solution); Vapor pressure 5100 mmHg at 20℃; Flash point=87.7℃(40%626 Chloroacetaldehydesolutions). Hazard Identification (based on NFPA 704 MRating System): Health 3, Flammability 2, Reactivity 0(able to polymerize on standing). Soluble in water.
Chemical Properties
Chloroacetaldehyde is a combustible, colorless liquid with a very sharp, irritating odor.
Waste Disposal
Incineration, preferably after
mixing with another combustible fuel; care must be exercised to assure complete combustion to prevent the formation of phosgene; an acid scrubber is necessary to remove
the halo acids produced.
Physical properties
Clear, colorless liquid with an irritating, acrid odor
Definition
ChEBI: Chloroacetaldehyde is acetaldehyde substituted at C-2 by chlorine. It derives from an acetaldehyde.
Fire Hazard
Combustible; flash point (closed cup) 87.8°C
(190°F); flash point of 50% aqueous solution
53°C (128°F) (at this concentration it may
form insoluble hemihydrate); it forms an
explosive mixture with air. Reactions with
strong acids and oxidizers are exothermic.
Carcinogenicity
Chloroacetaldehyde has been reported to
be an inhibitor of DNA synthesis and to form
DNA adducts; it is mutagenic in Salmonella
typhimurium and in Chinese hamster cells.
Limited in vivo genotoxicity studies with
chloroacetaldehyde were negative.
Environmental Fate
Chemical/Physical. Polymerizes on standing (Windholz et al., 1983).
storage
Polymerizable upon standing. Color Code—Blue:Health Hazard/Poison: Store in a secure poison location.Prior to working with chloroacetaldehyde you should betrained on its proper handling and storage. Store in tightlyclosed containers in a cool, dry, well-ventilated area. Metalcontainers involving the transfer of this chemical should begrounded and bonded. Where possible, automatically pumpliquid from drums or other storage containers to processcontainers. Drums must be equipped with self-closingvalves, pressure vacuum bungs, and flame arresters. Useonly nonsparking tools and equipment, especially whenopening and closing containers of this chemical. Sources ofignition, such as smoking and open flames, are prohibitedwhere this chemical is used, handled, or stored in a mannerthat could create a potential fire or explosion hazard.
