轻质碳酸镁 碳酸镁 本厂

chemistry: magnesium carbonate light

molecular formula: （3-5）mgco3 . mg(oh)2 . （3-7）h2o

performance: white magnesium carbonate light for the fragile massive carbonate or loose white powder. odorless, the relative density of 2.2. melting point of 350 ℃. be steady in the air, heated to 700 ℃ in carbon dioxide. almost insoluble in water, but in the water caused minor alkaline reaction, do not dissolve in alcohol, acid can be dissolved and foam.

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.