Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

P-MENTHYL HYDROPEROXIDE, <= 55%

NFPA

PRODUCT USE

Polymerisation catalyst; as a peroxide initiator.

SYNONYMS

"organic liquid peroxide with not less than 45% Type A diluent", "para-menthyl peroxide
solution", menthylperoxide, "para-menthane hydroperoxide", "cyclohexane, 1-methyl-4-(1-
methylethyl)-monohydroperoxy deriv., ", "cyclohexane, 1-methyl-4-(1-methylethyl)-
monohydroperoxy deriv., "

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

Risk of explosion by shock, friction, fire or other sources of ignition.
Contact with combustible material may cause fire.
Irritating to eyes.

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, pain, vomiting. Vomit entering the lungs by aspiration may cause potentially lethal chemical pneumonitis.  

EYE

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

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.  Skin contact will result in rapid drying, bleaching, leading to chemicalburns on prolonged contact.  Bare unprotected skin should not be exposed to this material.  

INHALED

  There is some evidence to suggest that this material, if inhaled, can irritate the throat and lungs of some persons.  Although inhalation is not thought to produce harmful effects, the material may still produce health damage, especially where pre-existing organ (e.g. liver, kidney) damage is evident. Present definitions of harmful or toxic substances are generally confined to doses producing mortality (death) rather than those producing morbidity (disease, ill-  health).  Inhalation hazard is increased at higher temperatures.  

CHRONIC HEALTH EFFECTS

  Principal routes of exposure are usually by skin contact/eye contact with the liquid and inhalation of vapor/spray mist.  Ingestion may result in nausea, abdominal irritation, pain and vomiting.  Prolonged or repeated skin contact may cause drying with cracking,irritation and possible dermatitis following.  Inhalation of vapours may cause headache, burning throat, shortness of  breath, leading to lung oedema if inhaled in high concentration.