magnesium sulfate fertilizer
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Molecular Formula: MgSO477H2O. Molecular weight:246.48.
--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.
--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:Knitting bags with plastic liners,25kg,40kg,50kg per bag.
Storage :Stored in dry and cool place. Protection from sunshine, rain, moisture.
name of index first class up to standard
( MgSO4.7H2O) % >=99.5 >=98.0
iron (Fe) % <= 0.005 <= 0.01
(as Cl) chloride% <= 0.15 <=0.15
insoluble in water% <=0.1 <=0.1