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 |
|
Magnesium
Sulfate