Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

HEXACHLOROCYCLOPENTADIENE

NFPA

PRODUCT USE

Intermediate in the manufacture of several chlorinated pesticides. Regeant

SYNONYMS

C5-Cl6, "1, 3-cyclopentadiene, 1, 2, 3, 4, 5, 5-hexachloro-", "1, 3-cyclopentadiene, 1,
2, 3, 4, 5, 5-hexachloro-", "1, 2, 3, 4, 5, 5-hexachloropentadiene", "1, 2, 3, 4, 5, 5-
hexachloropentadiene", "hexachloro-1, 3-cyclopentadiene", "hexachloro-1, 3-
cyclopentadiene", HCCP, perchlorocyclopentadiene, C-56, Graphlox, HRS-1655, HEX, "RCRA
Waste No. U130", "STCC 4921722"

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

May form explosive peroxides.
Harmful if swallowed.
Toxic in contact with skin.
Very toxic by inhalation.
Causes burns.
Risk of serious damage to eyes.
Very toxic to aquatic organisms, may cause long- term adverse effects in the
aquatic environment.

POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED

  Accidental ingestion of the material may be harmful; animal experiments indicate that ingestion of less than 150 gram may be fatal or may produce serious damage to the health of the individual.  The material can produce chemical burns within the oral cavity and gastrointestinal tract following ingestion.  

EYE

  The material can produce chemical burns to the eye following direct contact. Vapors or mists may be extremely irritating.  If applied to the eyes, this material causes severe eye damage.  Irritation of the eyes may produce a heavy secretion of tears (lachrymation).  

SKIN

  Skin contact with the material may produce toxic effects; systemic effectsmay result following absorption.  The material can produce chemical burns following direct contactwith the skin.  The material may cause moderate inflammation of the skin either following direct contact or after a delay of some time. Repeated exposure can cause contact dermatitis which is characterized by redness, swelling and blistering.  Open cuts, abraded or irritated skin should not be exposed to this material.  Entry into the blood-stream, through, for example, cuts, abrasions or lesions, may produce systemic injury with harmful effects. Examine the skin prior to the use of the material and ensure that any external damage is suitably protected.  

INHALED

  If inhaled, this material can irritate the throat andlungs of some persons.  Inhalation hazard is increased at higher temperatures.  

CHRONIC HEALTH EFFECTS

  Limited evidence suggests that repeated or long-term occupational exposure may produce cumulative health effects involving organs or biochemical systems.  Inhalation exposure by animals (0.34 ppm, 7 hours/day, 5 days/week over a period of 216 days) produced diffuse degenerative changes in the brain, heart, liver, adrenals and kidneys, severe pulmonary oedema and hyperaemia, and acute necrotising bronchitis and bronchiolitis. A lower  concentration (0.15 ppm) produced degenerative changes in the liver and kidneys.