Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

LINOLEIC ACID, DIMER

STATEMENT OF HAZARDOUS NATURE

Not considered a hazardous substance according to OSHA 29 CFR 1910.1200.

NFPA

PRODUCT USE

Used in surface coatings, emulsifiers and vitamins; manufacture of driers. Occurs as
glycerides in vegetable oils.

SYNONYMS

(C18-H32-O2)2, "9, 12-octadecenoic acid, (Z, Z)-", "9, 12-octadecenoic acid, (Z, Z)-",
"9, 12-linoleic acid dimer", "9, 12-linoleic acid dimer", "cis, cis-9, 12-octadecanoic
acid dimer", "cis, cis-9, 12-octadecanoic acid dimer", "cis-9, cis-12-octadecanoic acid
dimer", "cis-9, cis-12-octadecanoic acid dimer", "9, 12-octadecadienoic acid, (Z, Z)-,
dimer", "9, 12-octadecadienoic acid, (Z, Z)-, dimer", "leinoleic acid dimer",
"telfairic acid dimer"

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

None

EMERGENCY OVERVIEW

RISK

POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED

  The material has NOT been classified as "harmful by ingestion". This is because of the lack of corroborating animal or human evidence. 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, unintentional ingestion is not thought to be cause for concern.  

EYE

  Although the liquid is not thought to be an irritant, direct contact with the eye may produce transient discomfort characterized by tearing or conjunctival redness (as with windburn).  

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.  The liquid may be miscible with fats or oils and may degrease the skin, producing a skin reaction described as non-allergic contact dermatitis. The material is unlikely to produce an irritant dermatitis as described in EC Directives .  

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.  Inhalation hazard is increased at higher temperatures.  Not normally a hazard due to non-volatile nature of product.  Inhalation of oil droplets/ aerosols may cause discomfort and may produce chemical pneumonitis.  Fine mists generated from plant/ vegetable (or more rarely from animal) oils may be hazardous. Extreme heating for prolonged periods, at high temperatures, may generate breakdown products which include acrolein and acrolein-like substances.  

CHRONIC HEALTH EFFECTS

  Long-term exposure to the product is not thought to produce chronic effects adverse to the health (as classified using animal models); nevertheless exposure by all routes should be minimized as a matter of course.  Repeated ingestion of linoleic acid, by man, produces changes in platelet function tests. Animals tests show weight loss, progressive secondary anaemia, leukopenia and damage to erythrocyte and platelet membranes