Magnesium Oxide

CAS No.:1309-48-4

Molecular Formula: MgO

Molecular Weight: 40.30

Melting Point: 285℃

Boiling Point: 3600℃

Appearance: White or yellowish-white amorphous powder,tasteless and odorless.

Specification:

Magnesium Oxide Active

1) MgO%:  -------------------------------------92 min

2) CaO%: ----------------------------------------1.0 max

3) Fe%:  ----------------------------------------0.05 max

4) Mn%: ------------------------ ----------------0.003 max

5) Cl%:  ----------------------------------------0.20 max

6) Insoluble in HCL solution%:------------ 0.10 max

7) Screening Residues(75um mesh)%: 0.10 max

8) Loss%:  ------------------------------------6.0 max

9) Accumulation Density(g/ml):------------ 0.20 max

Magnesium Oxide Light (Industrial Grade)

1) MgO%: ---------------------------------------92 min

2) CaO%:------------------------ ---------------2.0 max

3) Fe%: -----------------------------------------0.10 max

4) Cl%: ------------------------------------------0.03 max

5) Screening Residues(75um mesh)%: 0.05 max

6) Loss%: ------------------------ -------------- 5.5 max

7) Accumulation Density(g/ml): ------------0.25 max

Magnesium Oxide Dense

1) MgO%: ------------------------ --------------90 min

2) CaO%: ------------------------ --------------2.5 max

3) Fe%: ------------------------ --------------1.0 max

4) Insoluble in HCL solution%:------------ 2.0 max

5) Screening Residues(75um mesh)%: 2.0 max

6) Loss on Ignition%:------------------------ 5.0 max

7) Accumulation Density(g/ml): -----------0.7 max

Magnesium Oxide Food Grade

1) MgO%: ------------------------ ------------90 min

2) Mg%: ------------------------ --------------53 min

3) CaO%: ------------------------ ------------2.0 max

4) SiO2%: ------------------------ ------------2.5 max

5) Fe2O3%: ------------------------ ---------1.0 max

6) Al2O3%:------------------------ ----------- 0.5 max

7) Pb%:------------------------ -------------- 0.004 max

8) As%: ------------------------ --------------0.002 max

9) Hg: ------------------------ -----------------0.5ppm max

10) F%:------------------------ ---------------- 0.2 max

11) Cd%: ------------------------ --------------0.001 max