MSDS: Dowfrost™ HD 50
Product Name: DOWFROST* HD 50 Heat Transfer Fluid, Dyed Issue Date: 09/24/2010
Page 4 of 7
9. Physical and Chemical Properties
Physical State
Liquid.
Colo
Yellow to green
Odo
Characteristic
Odor Threshold
No test data available
Flash Point - Closed Cup
Not applicable, Water boils off
Flammability (solid, gas)
Not applicable to liquids
Flammable Limits In Ai
Lowe
: 2.6 %(V) Literature Propylene glycol.
Upper: 12.5 %(V) Literature Propylene glycol.
Autoignition Temperature
371 °C (700 °F) Literature Propylene glycol.
Vapor Pressure
15.5 mmHg @ 20 °C Literature
Boiling Point (760 mmHg)
104 °C (219 °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
Decomposition
Temperature
No test data available
Partition coefficient, n-
octanol/water (log Pow)
No data available for this product.
Evaporation Rate (Butyl
Acetate = 1)
<0.5 Estimated.
Kinematic Viscosity
6.3 cSt Literature
10. Stability and Reactivity
Stability/Instability
Thermally stable at recommended 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 Polymerization
Will not occur.
Thermal Decomposition
Decomposition products depend upon temperature, air supply and the presence of other materials.
11. Toxicological Information
Acute Toxicity
Ingestion
For the major component(s): Propylene glycol. LD50, Rat > 20,000 mg/kg
Dermal
For the major component(s): Propylene glycol. LD50, Rabbit > 20,000 mg/kg
Inhalation
For the major component(s): No deaths occurred following exposure to a saturated atmosphere.
LC50, 8 h, Vapor, Rat 4.1 mg/l
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