Chlorendic acid Chemical Properties

Melting point:

239-242 °C(lit.)

Boiling point:

175°C (rough estimate)

Density 

1.7157 (estimate)

storage temp. 

Amber Vial, -20°C Freezer

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Solid

pka

1.26±0.70(Predicted)

color 

White to Off-White

Stability:

Stable. Incompatible with strong oxidizing agents.

CAS DataBase Reference

115-28-6(CAS DataBase Reference)

NIST Chemistry Reference

Bicyclo[2.2.1]-5-heptene-2,3-dicarboxylic acid, 1,4,5,6,7,7-hexachloro-(115-28-6)

IARC

2B (Vol. 48) 1990

EPA Substance Registry System

Chlorendic acid (115-28-6)

Safety Information

Hazard Codes 

Xi

Risk Statements 

40-41

Safety Statements 

53-22-26-36/37/39-45

WGK Germany 

3

RTECS 

RB9000000

HS Code 

2917.20.0000

Hazardous Substances Data

115-28-6(Hazardous Substances Data)

MSDS

• Language:English Provider:1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid
• Language:English Provider:SigmaAldrich

Chlorendic acid Usage And Synthesis

Chemical Properties

Chlorendic acid is a colorless crystalline solid.

Uses

Chlorendic acid is used as a flame retardant in polyurethane foams, resins, plasticizers, coatings, epoxy resins, and wool fabrics; in the manufacture of alkyl resins for special paints and inks; in the manufacture of polyester resins with special applications in electrical systems,paneling, engineering plastics, and paint; and in the manufacture of corrosion-resistant tanks, piping, and scrubbers. Chlorendic acid is also used as an extreme-pressure lubricant (NTP 1987, IARC 1990, IPCS 1996, HSDB 2009).

Uses

Hexachlorobicyclo[2.?2.1]?hept-?5-?ene-?2,?3-?dicarboxylic Acid is a novel flame retardant (NFR) which has also been observed as a toxic and environmental pollutant. Chlorinated Reactive Flame Retardant IntermediateEnvironmental toxin on US EPA Toxic Release Inventory list (TRI) list.

Definition

ChEBI: A bridged organochlorine compound resulting from the Diels-Alder reaction of hexachlorocyclopentadiene with maleic anhydride followed by hydrolysis of the resulting anhydride. A chemical intermediate used in the preparation of fire-retardant polyester resi s and plasticisers.

General Description

Fine white free-flowing crystals or white powder. Odorless.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Chlorendic acid readily forms salts with a variety of metals .

Fire Hazard

Chlorendic acid will burn when subject to direct flame, but is self-extinguishing when the flame is removed.

Safety Profile

Confirmed carcinogen with experimental carcinogenic data. A severe eye and mild skin irritant. When heated to decomposition it emits toxic fumes of Cl-.

Potential Exposure

Chlorendic acid is used to make other chemicals, polyester resins; in fiberglass reinforced resins; used for anticorrosion equipment and flame retardant applications of fabrics

Carcinogenicity

Chlorendic acid is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals.

Shipping

UN2928 Toxic solids, corrosive, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, 8-Corrosive material, Technical Name Required.

Incompatibilities

Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water, and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, sulfides (releasing heat, toxic, and possibly flammable gases), thiosulfates, and dithionites (releasing hydrogen sulfate and oxides of sulfur).

Waste Disposal

Dispose of contents and container to an approved waste disposal plant. All federal, state, and local environmental regulations must be observed.

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