Magnesium chloride hexahydrate 7791-18-6


Product Deail


Magnesium chloride hexahydrate

【Description】Colorless crystalline or white crystalline powder, deliquescent, relative density 1.569, melting point 118℃, 100℃ lost 2 molecules of crystal water, 110℃ began to decompose hydrogen chloride. Soluble in water and alcohol.

Table 1

Test items

GR

AR

CP

Other

Assay(MgCl2•6H2O) /%

≥99.0

≥98.0

≥98.0

Custom

pH(50g/L,25℃)

5.0-6.5

5.0-6.5

5.0-6.5

Clarity of solution /#

≤2

≤3

≤5

Water insoluble /%

≤0.003

≤0.005

≤0.01

Sulfate(SO4) /%

≤0.002

≤0.005

≤0.01

Phosphate(PO4) /%

≤0.000 5

≤0.001

≤0.002

Total nitrogen(N) /%

≤0.002

≤0.005

≤0.01

Sodium(Na) /%

≤0.005

-

-

Potassium(K) /%

≤0.005

-

-

Calcium(Ca) /%

≤ 0.01

≤ 0.05

≤ 0.10

Iron(Fe) /%

≤ 0.000 2

≤ 0.000 5

≤ 0.001

Barium and strontium(as Ba) /%

≤ 0.002

≤ 0.005

≤ 0.005

Heavy metals (as Pb) /%

≤ 0.000 2

≤ 0.000 5

≤ 0.001

Table 2

Test items

USP 40

Other

Assay(MgCl2•6H2O) /%

98.0-101.0

Custom

Identification

Passes test

Water insoluble /%

≤0.005

Sulfate(SO4) /%

≤0.005

Barium(Ba)

Passes test

Calcium(Ca)/%

≤0.01

Potassium(K) /%

Passes test

Aluminum(Al) /ppm

1

Use】Used as an analytical reagent; Food additives; Pharmaceutical excipients; Printing and dyeing auxiliaries; Frozen brine; Fire retardant.