Magnesium sulphate heptahydrate 99.5-100.5% (dried basis), meets analytical specification of BP, Ph. Eur., USP, FCC, Fluka™

Supplier: Honeywell Chemicals

Synonyms: sulphuric acid magnesium salt heptahydrate, Epsom salt, Bitter salt

13142-5KG 13142-25KG 13142-1KG 13142-4X5KG
HONC13142-5KGEA 713 SGD
HONC13142-5KG HONC13142-25KG HONC13142-1KG HONC13142-4X5KG
Magnesium sulphate heptahydrate 99.5-100.5% (dried basis), meets analytical specification of BP, Ph. Eur., USP, FCC, Fluka™
Magnesium sulphate heptahydrate
Formula: MgSO₄·7H₂O
MW: 246,48 g/mol
Melting Pt: 1,124 °C (dec.)
Density: 1,68 g/cm³ at 20 °C
Storage Temperature: Room Temperature
MDL Number: MFCD00149785
CAS Number: 10034-99-8
EINECS: 231-298-2
Merck Index: 13,05715

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Specification Test Results

Assay (calculated to the dried substance) 99.5 - 100.5 %
Loss on drying (450°C) 48.0 - 52.0 %
pH (5 %, 25 °C) 5.0 - 9.2
Free acid (as H₂SO₄) Max. 0.01 %
Free alkali (as MgO) Max. 0.004 %
Acidity or alkalinity complying
Arsenic (As) Max. 2 ppm
Iron (Fe) Max. 20 ppm
Lead (Pb) Max. 4 ppm
Selenium (Se) Max. 30 ppm
Heavy metals (as Pb) Max. 10 ppm
Chloride (Cl) Max. 100 ppm
Residual solvents complying
Appearance of the solution complying

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