Magnesium Sulfate
Molecular Formula: MgSO 4. 7H 2 O.
Molecular weight:246.48.
Characteristics:
--White exiguous acicular or oblique-pillar crystal. Smell-less,tast-bitter.Easily efflorescent at dry air.
--Speciific gravity is 1.68.
--Freely soluble in water . Solublein its own waterat 67.5oC.Slightly soluble in ethanol and glycerin.
--Dcomposing is heatedup.Lossing 4 crystal waterat 70-80oC.About at 200oC,lossing all of its crystal water becomes anhydrous compounds.
Use:
--Mainly used in fertilizer, tanning, pringting and dyeing,activator,papermaking,plastic,porcelain,pigment matchmaking ,dynamite and fireproof materials making .
--Can used in pringting and dyeing delaine as the aggravating reagent of calico or silk,and as filling up of wooden-cotton products.Be used as Epsom salts at medicine.
Packing, Storage and Transportation:
Knitting bags with plastic liners,25kg,40kg,50kg per bag.
Stored in dry and cool place.Protection from sunshine,rain,moisture.
Technological index
name of index |
first class |
up to standard |
( MgSO4.7H2O)% |
≥ 98.0 |
≥ 95.0 |
iron (Fe)% |
≤ 0.005 |
≤ 0.01 |
(as Cl)chloride% |
≤ 0.30 |
≤ 0.50 |
insoluble in water% |
≤ 0.10 |
≤ 0.15 |
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