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Magnesium sulfate heptahydrate food additive

  • Magnesium sulfate heptahydrate food additive
  • Magnesium sulfate heptahydrate food additive
  • Magnesium sulfate heptahydrate food additive

Magnesium sulfate heptahydrate food additive

    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Terms of Trade: FOB,CFR,CIF,FCA,CPT
    Min. Order: 1000 Kilogram
    Delivery Time: 7 Days
    Packaging: 25kg bags
    Productivity: 30000MTs/year
    Brand: KOLOD
    Transportation: Ocean,Land,Air
    Place of Origin: China
    Supply Ability: 30000MTs/year
    Certificate: ISO9001,ISO14001,ISO22000
    HS Code: 28332100
    Port: Lianyungang,Shanghai,Qingdao

Basic Info

Model No.: food grade heptahydrate

Product Description

Magnesium Sulfate

Other name : Epsom Salt

Molecular Formula : MgSO4·xH2O

Molecular Weight : Monohydrate 138.38

Molecular Weight : Heptahydrate 246.47

INS: 518

CAS: monohydrate [14168-73-1]

CAS: heptahydrate [10034-99-8]

CAS: dried [15244-36-7]


Magnesium Sulfate occurs as a colorless crystal or a granular crystalline powder. It is produced with one or seven molecules of water of hydration or in a dried form containing the equivalent of about 2.3 waters of hydration. It is readily soluble in water, slowly soluble in glycerine, and sparingly soluble in alcohol.

Function : Nutrient.



Indicate whether it is the monohydrate, the heptahydrate, or the dried form.


A 1:20 aqueous solution gives positive tests for Magnesium and for Sulfate, Appendix IIIA.


Not less than 99.5% of MgSO4 after ignition.


Not more than 4 mg/kg.

Loss on Ignition

Monohydrate: Between 13.0% and 16.0%; Heptahydrate: Between 40.0% and 52.0%; Dried: Between 22.0% and 28.0%.


Not more than 0.003%.



Accurately weigh about 500 mg of the residue obtained in the test for Loss on Ignition (below), dissolve it in a 1:50 mixture of hydrochloric acid:water, dilute with water to 100.0 mL, and mix. Transfer 50.0 mL of this solution into a 250-mL Erlenmeyer flask, add 10 mL of ammonia– ammonium chloride buffer TS and 12 drops of eriochrome black TS, and titrate with 0.1 M disodium EDTA until the wine red color changes to pure blue. Each milliliter of 0.1 M disodium EDTA is equivalent to 12.04 mg of MgSO4.


Determine as directed in the APDC Extraction Method under Lead Limit Test, Appendix IIIB.

Loss on Ignition

Transfer about 1 g of sample, accurately

weighed, and transfer it into a crucible, heat at 105° for 2 h, and then ignite in a muffle furnace at 450°±25° to constant weight.


Determine as directed in Method II under Selenium Limit Test, Appendix IIIB, using 200 mg of sample.

Packaging and Storage

Store in well-closed containers.

Jiangsu Kolod Food Ingredients Co., Ltd.

 Jiangsu Kolod Food Ingredients Co., Ltd. is a leading manufacturer of high-purity chemicals in China. We produce phosphates, sulfates, chlorides, citrates etc. mainly food and pharma grade. We have passed ISO 9001, ISO 14001, ISO 22000, KOSHER, HALAL, GMP, FDA certifications. There are 12 workshops in our factory, and we produce dozens of products. Our production capacity is 200,000MTs/year. With stable and superior quality, we have been authorized supplier of Coca-cola, Nestle, Mars Group, Brenntag for years.

Company Info

  • Company Name: Jiangsu Kolod Food Ingredients Co., Ltd.
  • Product/Service: Chemical Raw Materials , Organic Chemicals , Inorganic Salt , Food Additive , Feed Additive , Chemical Fertilizer
  • Contact Person: Mr. Tom
  • Tel: 86-518-85110858
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