Appearance: White, granular, crystalline solid
Grades: Technical Standard
Description: The surface of the crystal is usually chalk white as a result of partial loss of water of hydration.
Decahydrate Borax (Na2B4O7*10H2O): 100%min.
Anhydrous Borax (Na2B4O7): 52.8%min.
Boric Oxide (B2O3): 36.5%min.
Sodium Oxide (Na2O): 16.3%min.
Water of Crystallization (H2O): 47.2%max.
Chloride (Cl): 200ppm max.

pH in Water at 20°C(68°F):

Weight 0.1%: pH 9.24
Weight 0.5%: pH 9.23
Weight 1.0%: pH 9.23
Weight 2.0%: pH 9.24
Weight 3.0%: pH 9.27
Weight 4.78%(Saturation): pH 9.32