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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
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 |
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.
Not a hazardous substance or mixture.