食品级碳酸镁(重质) 食品级

chemistry name: basic magnesium carbonate (heavy)

molecular formula:xmgco3。ymg(oh)2。zh2o
comparativelymolecular weight:467.63

performance: basic magnesium carbonate (heavy)is whitethe fragile massive carbonate or loose white powder. odorless, the relative densityis 2.2kg. 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.

standards:

items	hg2790 - 1996
magnesium oxide content (mgo),%	40.0 ~ 43.5
acid insoluble, ≤%	0.05
arsenic (as of), ≤%	0.0003
calcium oxide (cao), ≤%	0.6
heavy metals (pb dollars), ≤%	0.002
lead, ≤%	0.001
soluble salt, ≤%	1

use: alkalizer; desiccant, color fixative, carrier, the free flow of flour treatment agent; nutritional supplements; ph regulator, processing aid, the release agent.

packaging:withpolyethylene lined with plastic bags, jackets composite plastic woven bags. the net weight is 25 kg.

storage and transport: it should be stored in a dry and ventilative warehouse, it should be kept away from moisture and hot, furthermore,it should be stored separately from poisonous substances. handled with care,so as to avoid damaging to bags.