molecular formula: (3-5)mgco3 . mg(oh)2 . (3-7)h2o
quality
standard:hg/t2959-2000
indexespremium grage first grade result
moisture,≤% 2.0 3.0
<1.5
content(asmgo),≥%41.0
40.0>45.0
acid insoluble,≤%0.10
0.15 <0.03
loss on ignition% 54-58 54-58
56
chloride(ascl),≤%0.10
0.150.06
iron(asfe),≤%
0.02 0.05 <0.01
manganese(asmn),≤%0.004
0.004<0.03
sulphate(asso4),≤%
0.10 0.150.08
calcium
oxide(ascao),≤%
0.43 0.70.40
residue(150um),≤% 0.025
0.030.005
accumulate
density(g/ml),≤%
0.12-0.25 0.12-0.250.12-0.25
use: make
magnesium salt, magnesium oxidize, fire prevention heat insulator,
fire prevention the coating, printing-ink, pottery, glass, such
industry as cosmetics, toothpaste and pigment, etc...
packing:
it is packed with polyethylene bag as liner and a compound plastic
woven bag as the outer layer. the net weight of each bag is 20
kg.