Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

ZINC CHROMATE ZTO****************OBSOLETE*******

NFPA

PRODUCT USE

· Material is mixed and used in accordance with manufacturers directions. Operators
should be trained in procedures for safe use of this material. An anti- corrosive pigment
in paint, lacquer, coatings, mastics.

SYNONYMS

ZnCrO4.4Zn(OH)2, "basic zinc chromate", "C.I. 77956", "C.I. Pigment Yellow 36:1", "zinc
chromate (VI) hydroxide", "zinc chromate (VI) hydroxide", "zinc tetraoxychromate"

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

May cause CANCER.
May cause SENSITIZATION by skin contact.
Very toxic to aquatic organisms, may cause long- term adverse effects in the
aquatic environment.

POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED

  Although ingestion is not thought to produce harmful effects, the material may still be damaging to the health of the individual following ingestion, especially where pre-  existing organ (e.g. liver, kidney) damage is evident. Present definitions of harmful or toxic substances are generally based on doses producing mortality (death) rather than those producing morbidity (disease, ill-health). Gastrointestinal tract discomfort may produce nausea and vomiting. In an occupational setting however, ingestion of insignificant quantities is not thought to be cause for concern.  Considered an unlikely route of entry in commercial/industrial environments.  Ingestion may result in nausea, abdominal irritation, pain and vomiting.  

EYE

  There is some evidence to suggest that this material can causeeye irritation and damage in some persons.  The dust may produce eye discomfort and abrasive eye inflammation.  

SKIN

  The material is not thought to produce adverse health effects or skin irritation following contact (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable gloves be used in an occupational setting.  Toxic effects may result from skin absorption.  The material may accentuate any pre-existing dermatitis condition.  

INHALED

  Inhalation may produce serious health damage*.  The material is not thought to produce respiratory irritation (as classified using animal models). Nevertheless inhalation of the material, especially for prolonged periods, may produce respiratory discomfort and occasionally, distress.  

CHRONIC HEALTH EFFECTS

  Skin contact with the material is more likely to cause a sensitization reaction in some persons compared to the general population.  There is sufficient evidence to suggest that this materialdirectly causes cancer in humans.  

  Principal routes of exposure are by accidental skin and eye contact andinhalation of generated dusts.  Chronic inhalation exposure may cause ulceration, even lesions of the nasal  septum. Asthmatic attacks may occur with sensitisation.  The reported excesses of lung cancer for cohorts exposed to zinc chromates  is consistent with the results from studies of workers exposed in the  chromate production industry.  Copper can be synergistic with zinc, increasing the chromate toxicity.