Lead chromate molybdate sulfate. Consists of mixed crystals consisting of lead chromate, lead sulfate and lead molybdate. It is not a mixture of lead chromate molybdate and lead sulfate and is, for stabilization purposes, coated with silicate and antimony compounds. It is used when the emphasis is on economy rather than fastness to light, weathering and resistance to SO2. It is particularly suitable as the sole colorant present, either in the full or reduced shades, as well as in combination with other pigments for producing oranges and greens.
Details
12656-85-8
Lead chromate molybdate sulfate
- maximum fastness to light as well as weathering
- resistant to industrial gases, dilute mineral acids
- has particularly low content of lead compounds soluble in hydrochloric acid
automotive and industrial coatings
It is insoluble in organic solvents and thus fast to overspraying.
Is not suitable to color or coat cement or lime.
The heat stability depends on the binder and solvent system used.
Technical data
Quantity | Value | Unit | Comment |
---|---|---|---|
Appearance Properties | |||
Physical state | powder | ||
Appearance | |||
Physical Properties | |||
pH | 5 - 7 | ||
Bulk volume | 1.3 | l/Kg | |
Density | 6.0 | g/ml | |
Color index | |||
Surface Area | 12 | m²/g | |
Oil absorbtion | 22 | % | g/100g |
Thermal Properties | |||
Heat Stability | 250 | ºC | |
Chemical Properties | |||
acid resistance | 4 | ||
Basic resistance | 4 - 5 |
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