1.Quality specification:
Appearance                                           :  light color, free-flowing powder
Moisture content ( @105℃,2hrs )     : ≤3.5%
Granularity (<76μm or 200mesh)     : ≥98%
Colloid (gel) rate                                  : ≥95%
Heavy metal (Pb)                                 : ≤15mg/kg
Arsenic     (As)                                      : ≤5 mg/kg

2. Characteristics and Application:
Free-flowing powder with light color.  Applicable to low polar solvent systems.
Need high speed dispersing. Dry-powder addition. Good thixotropy and stability to make the mud have good suspension property, wall protection and anti-filtration, furthermore, under the pressure 10⁸Pa and the temperature 230℃,
the mud can maintain stable physical and chemical property.
Used in oil drilling mud, emulsion oil mud, suspending agent, etc.

3.The international counter-brand is: Bentone-990.