Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

HEPTAMETHYLTRISILOXANE, ETHOXYLATED, PROPYL ETHER

NFPA

PRODUCT USE

Wetting agent. Pesticide spray adjuvant.

SYNONYMS

(C2-H4-O)nC11-H30-O3-Si3, "poly(oxy-1, 2-ethanediyl), ", "poly(oxy-1, 2-ethanediyl), ",
"alpha-methyl-omega-[3-[1, 3, 3, 3-tetramethyl-", 1-
[(trimethylsilyl)oxy]disiloxanyl]propyl, 1-[(trimethylsilyl)oxy]disiloxanyl]propyl,
"polyethylene, methyl", "3-[1, 3, 3, 3-tetramethyl-1-(trimethylsilyloxy)disiloxanyl]
propyl ether", "3-[1, 3, 3, 3-tetramethyl-1-(trimethylsilyloxy)disiloxanyl] propyl ether",
"modified heptamethyltrisiloxane", "polyalkyleneoxide modified heptamethyltrisiloxane",
oxyalkylenemethylsiloxane, "oxyethylene methylsiloxane", "Chemplex Pulse Silwet L-77
Agepon Super", "Chemplex Pulse Silwet L-77 Agepon Super", "Monsanto Pulse Wetting Agent",
"Wetting Agent", "Pulse Penetrant Wetting Agent", "penetrating fluid"

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

Possible risk of impaired fertility.

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.  Silicone fluids do not have a high acute toxicity. They may have a laxative effect and produce central nervous system depression. They have been known to reduce bloating and gas. Aspiration of silicone fluids can produce inflammation of the lungs.  

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.  Vapors of silicones are generally fairly well tolerated, however very high concentrations can cause death within minutes due to respiratory failure. At high temperatures, the fumes and oxidation products can be irritating and toxic and can cause depression leading to death in very high doses.  

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

  Ample evidence from experiments exists that there is a suspicionthis material directly reduces fertility.  

  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.  Subchronic feeding studies, show that high dosage repeated exposure may  produce liver dysfunction, altered blood cytology/ chemistry and thyroid  enlargement (primarily hypertrophy, and some hyperplasia). Findings from  a 14-day dietary feeding study with rats, using a similar material, show  that high dosage repeated ingestion of the material causes adverse effects  on the male and female reproductive systems. Evidence of partial or  complete recovery was found over a 28-day period.  Possible risk of impaired fertility.