Caustic soda

Specifications
purity: 99%min manufacturing technique by ionic membrane.
Property: pure caustic soda is colorless ,transparent crystals, melting point:318.4℃,boiling point:1390℃, crispy. Pure solid caustic soda appear white, block ,flake, bead , easily soluble in water ,can release lots of heat. in water appear alkaline, feeling creamy. Soluble in ethanol and glycerol, not soluble in acetone ,ether. Strong corrosive, corrupt fiber ,skin, glass ,ceramic ,etc.
1. Standard of identity of caustic soda flakes:
grade
name of specification
mercury process
diaphragm process
naoh
99.0% min
96.0% min
na2co3
0.5% max
1.2% max
nacl
0.03% max
2.5% max
fe2o3
0.005% max
0.008% max
packing: net each in 25kg plastic woven bag, lined with pe bag.
2. Standard of identity of caustic soda granular:
grade
name of specification
super
naoh
99.0% min
na2co3
0.5% max
nacl
0.03% max
fe2o3
0.005% max
packing : net each 200kg ,steel drum.