MSDS: Dowfrost™ HD 50
Product Name: DOWFROST* HD 50 Heat Transfer Fluid, Dyed Issue Date: 12/10/2007
Page 4of7
Upper:12.5%(V)Literature Propylene glycol
Autoignition Temperature 3 7 1 °C ( 7 0 0 °F ) Literature Propylene glycol
Vapor Pressure 15.5 mmHg @ 20 °C Literature
Boiling Point (760 mmHg) 1 0 4 °C ( 2 1 9 °F ) Literature .
Vapor Density (air = 1) >1.0 Literature
Specific Gravity (H2O = 1) 1.06 20 °C/20 °C Literature
Freezing Point -33.8 °C (-28.8 °F) Literature
Melting Point Not applicable to liquids
Solubility in Water (by
weight)
100 % Literature
pH 9.5 Literature
Kinematic Viscosity 6.3 cSt Literature
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Stability/Instability
Thermally stable at r ecommended temperatures and pressures.
Conditions to Avoid: Some components of this product can decompose at elevated temperatures.
Generation of gas during decomposition can cause pressure in closed systems.
Incompatible Materials: Avoid contact with: Strong acids. Strong bases. Strong oxidizers.
Hazardous Pol ymerization
Will not occur.
Thermal Decomposition
Decomposition products depend upon temperature, air supply and the presence of other materials.
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Acute Toxicity
Ingestion
LD50, Rat, female 20,300 mg/kg
Skin Absorption
For similar material(s): LD50, Rabbit > 10,000 mg/kg
Sensitization
Skin
For the major component(s): Did not cause allergic skin reactions when tested in humans.
Repeated Dose Toxicity
In rare cases, repeated excessive exposure to propylene glycol may cause central nervous system
effects.
Chronic Toxicity and Carcinogenicity
Similar formulations did not cause cancer in laboratory animals.
Developmental Toxicity
For the major component(s): Did not cause birth defects or any other fetal effects in laboratory
animals.
Reproductive Toxicity
For the major component(s): In animal studies, did not interfere with reproduction. In animal studies,
did not interfere with fertility.
Genetic Toxicology
In vitro genetic toxicity studies were negative. For the major component(s): Animal genetic toxicity
studies were negative.
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