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Magnesium Sulfate Heptahydrate 99% AR Grade Reagent

Cas Number:10034-99-8
Formula: MgSO4•7H2O
Molar Mass:246.48
EC Number:231-298-2

Quantity:
  • AR
  • LABOR
  • 213602129

Magnesium Sulfate Heptahydrate 99% AR Grade Reagent


Cas Number:10034-99-8

Formula: MgSO4·7H2O

Molar Mass:246.48

EC Number:231-298-2


Physicochemical properties:

White needle crystal or powder. It tastes bitter and cool. Weathered. At room temperature, one molecule of crystal water is lost in dry air, 4 molecules of crystal water are lost at 70-80 ° C, 5 molecules of crystal water are lost at 100 ° C, 6 molecules of crystal water are lost at 120 ° C, and can be quickly reabsorbed in humid air. Moisture, loses all crystal water at about 250 °C. Solubility in water (g/100 ml): 71 at 20 ° C and 91 at 40 ° C.


Usage:

Used to precipitate lead in the analysis. Mordant.


Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.0 min

pH(50g/L,25℃)

5.0~8.0

Transparency of solution

to pass test

Insoluble in water,%

0.005 max

Chloride(Cl),%

0.0005 max

Arsenic(As),%

0.0001 max

Sodium(Na),%

0.005 max

Calcium(Ca),%

0.02 max

Manganese(Mn),%

0.001 max

Iron(Fe),%

0.0005 max

Heavy metals(as Pb),%

0.0005 max


Not a hazardous substance or mixture.


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