Magnesium carbonate basic pentahydrate

4MgCO₃.Mg(OH)₂.5H₂O

Magnesium hydroxide carbonate

CAS-No. 12125-28-9 EC-No. 235-192-7 HS-No. 28369911 

M = 485.66 g/mol Spec. density 2.16 g/cm³ (20 °C)

Melting point 700 °C

Magnesium carbonate basic pentahydrate  AR

Specification  Q/GDGH 104-2003

Assay(as MgO)

40.0%~40.5%

Insoluble matter in hydrochloric acid

<=0.025%

Soluble matter in water

<=0.5%

Loss on ignition

<=55.5%~60.0%

Chloride(Cl)

<=0.005%

Total nitrogen(N)

<=0.1%

Phosphate(PO₄)

<=0.002%

Sulfur compounds(as SO₄)

<=0.02%

Arsenic(As)

<=0.0001%

Calcium(Ca)

<=0.1%

Iron(Fe)

<=0.002%

Zinc(Zn)

<=0.01%

Heavy metals(as Pb)

<=0.001%

Ord.No.

Packaging

Quantity

Magnesium carbonate basic pentahydrate  CP

Specification  Q/GDGH 104-2003

Assay(as MgO)

40.0%~40.5%