How to distinguish the true and false of calcium stearate

- Jun 26, 2017 -

1. Calcium stearate Production process: There are two production processes of calcium stearate, dry production and saponification method, the dry production of calcium stearate ph is alkaline, with saponification production of calcium stearate, is neutral.

2. Phenolphthalein Indicator test: If the calcium stearate is used dry production, so the ph is alkaline, the reality of the color is red, if the use of saponification of calcium stearate, will not change color.

3. Heating method: Add some calcium stearate with beaker, then heat on the fire, if like paste, the calcium stearate is false.