Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

WILSONS DYNAWHITE (4.8% SODIUM HYPOCHLORITE)

NFPA

PRODUCT USE

Bleaching, sanitising, mould removal. The use of a quantity of material in an unventilated
or confined space may result in increased exposure and an irritating atmosphere
developing.Before starting consider control of exposure by mechanical ventilation.

SYNONYMS

"Na-O-Cl solution", "Na-O-Cl solution", "liquid bleach", "hypochlorous acid, sodium salt
solution", Hypochlorite, "household bleach", "Soda bleach liquor"

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

Contact with combustible material may cause fire.
Contact with acids liberates toxic gas.
Irritating to eyes and skin.

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.  

EYE

  This material can cause eye irritation and damage in some persons.  

SKIN

  This material can cause inflammation of the skin oncontact in some persons.  Skin contact is not thought to have harmful health effects, however the material may still produce health damage following entry through wounds, lesions or abrasions.  Skin contact will result in rapid drying, bleaching, leading to chemicalburns on prolonged contact.  A few individuals may show allergic/sensitization responses which may be minor to severe. Exposure will aggravate this pre-existing condition and those with sensitization reactions should not be required to work where exposure may occur.  

INHALED

  The material is not thought to produce adverse health effects or irritation of the respiratory tract (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable control measures be used in an occupational setting.  

CHRONIC HEALTH EFFECTS

  Principal routes of exposure are usually by skin contact/eye contact and inhalation of vapor.  Prolonged or repeated skin contact may cause drying with cracking,irritation and possible dermatitis following.  Necrosis and haemorrhage of the upper digestive tract, oedema and  pulmonary emphysema were found on autopsy after suicidal ingestion, and  methaemoglobinaemia was also reported in another fatal case.