Specifications

Product Name: DOWFROST* Heat Transfer Fluid Issue Date: 11/05/2007
Page 4 of 7
9. Physical and Chemical Properties
Physical State Liquid
Color Colorless
Odor Characteristic
Flash Point - Closed Cup 104 °C (219 °F) Pensky-Martens Closed Cup ASTM D 93 (based on
major component), Propylene glycol
Flammable Limits In Air Lower: 2.6 %(V) Literature Propylene glycol
Upper: 12.5 %(V) Literature Propylene glycol
Autoignition Temperature 371 °C (700 °F) Literature Propylene glycol
Vapor Pressure 2.2 mmHg Literature
Boiling Point (760 mmHg) 152 °C (306 °F) Literature .
Vapor Density (air = 1) >1.0 Literature
Specific Gravity (H2O = 1) 1.05 20 °C/20 °C Literature
Freezing Point supercools
Melting Point Not applicable to liquids
Solubility in Water (by
weight)
100 % Literature
pH 10.0 Literature
Kinematic Viscosity 43.4 cSt @ 20 °C Literature
10. Stability and Reactivity
Stability/Instability
Stable under recommended storage conditions. See Storage, Section 7. Hygroscopic.
Conditions to Avoid: Exposure to elevated temperatures can cause product to decompose.
Generation of gas during decomposition can cause pressure in closed systems. Avoid direct sunlight
or ultraviolet sources.
Incompatible Materials: Avoid contact with: Strong acids. Strong bases. Strong oxidizers.
Hazardous Polymerization
Will not occur.
Thermal Decomposition
Decomposition products depend upon temperature, air supply and the presence of other materials.
Decomposition products can include and are not limited to: Aldehydes. Alcohols. Ethers. Organic
acids.
11. Toxicological Information
Acute Toxicity
Ingestion
LD50, Rat, female 20,300 mg/kg
Skin Absorption
For similar material(s): LD50, Rabbit > 10,000 mg/kg
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.
Apricus Solar Collector Installation & Operation Manual - USA
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