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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 water at 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.
Test item | Specification | Analysis Results |
Main Content | 99.5% min | 99.79 |
MgSO4 | 48.59% min | 48.7 |
PH(5W/V%Sol) | 5-8 | 6.15 |
Iron (Fe) | 0.0015% max | 0.001 |
Chlorid (Cl) | 0.015% max | 0.015 |
Heavy metal (Pb) | 0.0008% max | 0.0007 |
Arsenic (As) | 0.0002% max | 0.0001 |
Size (mm) | 0.1-1 | 0.1-1 |
Packing:
Knitting bags with plastic liners,25kg,40kg,50kg per bag. Storage :
Stored in dry and cool place.Protection from sunshine,rain,moisture.
Magnesium sulfate heptahydrate