Magnesium Compounds

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Product name

CAS

Formula

Magnesium Oxide DC USP

CAS1309-48-4

FormulaMgO

SynonymMagnesia, Periclase, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Boiling Point3600 c

Density3.65-3.75

Very Solublein water

particle size - 60 meshNo less than 90% retain (seive analysis)

ArsenicNo more than 1 ppm

DescriptionHeavy, white, odorless granules

Free Alkali & Soluble SaltsNo more than 2%

Acid insoluble substancesNo more than 0.1%

Heavy MetalsNo more than 20 ppm

CalciumNo more than 1.1% [w/w]

AssayNo less than 96.0 % & No more than 100.5% of MgO [Ignited Substance]

Microbial test - TFCNo more than 100 CFU/g

PathogensAbsent

Particle size - 30 mesh100% pass (seive analysis)

Bulk Density15 grams occupies a volume of 15 ml

IdentificationBy reaction of Magnesium

Microbial test - TBCNo more than 1000 CFU/g

IronNo more than 500 ppm

Loss on IgnitionNot more than 10 % (w/w)

SolubilityPractically insoluble in water, dissolves in dilute acids with at most slight effervesence

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Melting Point2800 c

Molecular weight40.31

Magnesium Peroxide

CAS14452-57-4

FormulaMgO2

SynonymMagnesium Dioxide, Magnesium peroxide (Mg(O2))

Pharmaceutical Grade Magnesium Oxide HA4

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Melting Point2800 c

Identificationpositive test for Magnesium

Magnesium Oxide as MgO (ignited basis)96.0 - 100.5%

Free Alkali2 ml max

Soluble Salts2% max

Calcium as Ca1.10% max

Iron as Fe0.05% max

Chloride as Cl0.1% max

Lead as Pb0.3 ppm max

Bulk Density (untapped)0.20 - 0.55 gr/cc

Particle Size: Passes 325 mesh (wet Sieve)99.0% min

Loss on Ignition10% max

Acid insoluble substances0.1% max

Heavy Metals, as Pb20 ppm max

Sulphate as SO41.00% max

Arsenic, as As3 ppm max

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Pharmaceutical Magnesium Oxide Grade HA and HA5

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Bulk Density (untapped)HA - 0.40 - 0.60 gr/cc

Iron as Fe0.05% max

Lead as Pb0.5 ppm max

Sulphate as SO40.75% max

Particle Size: Passes 325 mesh (wet Sieve)HA - 75.0% min

Melting Point2800 c

Identificationpositive test for Magnesium

Calcium as Ca1.10% max

Heavy Metals, as Pb20 ppm max

Arsenic, as As3 ppm max

Chloride as Cl0.1% max

Bulk Density (untapped)HA5 - 0.30 - 0.65 gr/cc

Particle Size: Passes 325 mesh (wet Sieve)HA5 - 99.0% min

Magnesium Oxide as MgO (ignited basis)96.0 - 100.5%

Loss on Ignition10.0% max

Free Alkali2 ml max

Soluble Salts2% max

Acid insoluble substances0.1% max

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Magnesium Oxide-Technical Grade KP

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Melting Point2800 c

Loss on ignition (900 C)2.0% max

Bulk Density, tapped0.45 - 0.75 gr/cc

Magnesium Oxide as MgO (by difference)97.0% min

Calcium as CaO1.00% max

Iron as Fe2O30.05% max

Silicon as SiO20.10% max

Sulphate as SO41.00% max

Residue on 100 mesh10.0% max

Residue on 325 mesh35.0% max

Chloride as Cl0.70% max

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Pharmaceutical Grade Magnesium Hydroxide HD ~ USP

CAS1309-42-8

FormulaMg(OH)2

SynonymBrucite, Magnesia magma, Magnesium hydrate, Milk of magnesia, Magnesium hydroxide (Mg(OH)2), Magnesium hydroxide

Density2.36

Melting Point350 c (dec.)

Particle Size: Passes 325 mesh (wet Sieve)HD7 - 95.0% min

Particle Size: Passes 325 mesh (wet Sieve)HD9 - 95.0% min

Particle Size: Passes 325 mesh (wet Sieve)HD12 - 90.0% min

Tapped Density (1000 taps)HD12 - 1.01 - 1.25 g/cc

Calcium as Ca1.50% max

Heavy Metals, as Pb20 ppm max

Bulk Density (untapped)HD7 - 0.40 - 0.65 g/cc

Magnesium Hydroxide as Mg(OH)295.0 - 100.5%

IdentificationPositive test for Magnesium

Microbial enumeration testPasses test

Loss on Ignition30.0 - 33.0% max

Loss on Drying2.00% max

Free Alkali2 ml

Soluble Salts2.00% max

Carbonatesto pass effervascence test

Lead as Pb1.5 ppm max

Bulk Density (untapped)HD5 - 0.25 - 0.55 g/cc

Bulk Density (untapped)HD9 - 0.60 - 0.80 g/cc

Bulk Density (untapped)HD12 - max 1.10 g/cc

Tapped Density (1000 taps)HD5 - 0.40 - 0.60 g/cc

Tapped Density (1000 taps)HD7 - 0.61 - 0.80 g/cc

Tapped Density (1000 taps)HD9 - 0.81 - 1.00 g/cc

Particle Size: Passes 325 mesh (wet Sieve)HD5 - 95.0% min

Odorodorless

Molecular weight58.33

Colorwhite amorphous powder or colorless hexagonal crystal

Solubilitysoln. of ammonium salts and dilute acids

Magnesium Oxide Reactive Technical Grade KPLL

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Surface area (BET)KPLL-8 - 7.0 - 15.0 m2/g

Surface area (BET)KPLL-20 - 15.0 - 30.0 m2/g

Loss on ignition (900 C)KPLL-5 - 2% max

Loss on ignition (900 C)KPLL-20 - 3% max

Loss on ignition (900 C)KPLL-40 - 4% max

Loss on ignition (900 C)KPLL-60 - 5% max

Particle size: Passes 200 mesh (wet sieve)95% min

Calcium as CaO1.0% max

Chloride as Cl0.7% max

Surface area (BET)KPLL-40 - 30.0 - 50.0 m2/g

Surface area (BET)KPLL-60 - 50.0 - 70.0 m2/g

Loss on ignition (900 C)KPLL-8 - 2% max

Magnesium Oxide as MgO (by difference)97.0% min

Silicon as SiO20.1% max

Iron as Fe2O30.025% max

Sulphate as SO40.5% max

Surface area (BET)KPLL-5 - 3.0 - 7.0 m2/g

Melting Point2800 c

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Active Magnesium Oxide RA 110

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Surface area (BET)130 - 170 m2/gr

Bulk Density (10 taps)0.60 gr/cc max

Particle Size: Passes 325 mesh (wet Sieve)99.0% min

Magnesium Oxide as MgO (by difference)98.0 - 100.0%

Aluminum as Al2O30.015% max

Calcium as CaO0.45% max

Silicon as SiO20.04% max

Iron as Fe2O30.03% max

Chloride as Cl0.25% max

Sulphate as SO40.25% max

Sodium as Na0.10% max

Potassium as K0.04% max

Loss on Ignition7.0% max

Melting Point2800 c

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Magnesium Oxide Special Industrial Grade SIG

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Melting Point2800 c

Residue on 100 mesh2.0% max

Magnesium Oxide as MgO (by difference)99.0% min

Calcium as CaO0.30% max

Iron as Fe2O30.04% max

Silicon as SiO20.05% max

Sodium as Na0.10% max

Chloride as Cl0.25%

Boron as B2O30.02% max

Loss on ignition (900 C)2.0% max

Bulk Density, tapped0.40 - 0.80 g/cc

Surface area (BET)4.0 - 20.0 m2/g

Sulphate as SO40.25% max

Residue on 325 mesh25.5% max

Residue on 200 mesh10.0% max

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Active Magnesium Oxide RA 40

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Melting Point2800 c

Magnesium Oxide as MgO (by difference)98.0 - 100.0 %

Calcium as CaO0.45% max

Silicon as SiO20.04% max

Aluminum as Al2O30.015% max

Chloride as Cl0.25% max

Sulphate as SO40.50% max

Sodium as Na0.2% max

Potassium as K0.01% max

Bulk Density (10 taps)0.60 g/cc max

Iron as Fe2O30.03% max

Loss on Ignition7.0% max

Surface area (BET)40 - 70 m2/g

Particle Size: Passes 325 mesh (wet Sieve)99.0% min

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Light Active Magnesium Oxide RA 70

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Melting Point2800 c

Calcium as CaO0.45% max

Silicon as SiO20.04% max

Aluminum as Al2O30.03% max

Chloride as Cl0.25% max

Sulphate as SO40.25% max

Potassium as K0.04% max

Loss on Ignition7.0% max

Surface area (BET)70 - 120 m2/g

Particle Size: Passes 325 mesh (wet Sieve)99.0% min

Magnesium Oxide as MgO (by difference)99.0% min

Iron as Fe2O30.03% max

Sodium as Na0.04% max

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Active Magnesium Oxide RA 150

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Potassium as K0.04% max

Loss on Ignition7.0% max

Surface area (BET)170 m^2/gr min

Particle Size: Passes 325 mesh (wet Sieve)99.0% min

Aluminum as Al2O30.015% max

Chloride as Cl0.25% max

Sulphate as SO40.25% max

Sodium as Na0.1% max

Bulk Density (10 taps)0.60 gr/cc max

Magnesium Oxide as MgO (by difference)98.0 - 100.0%

Calcium as CaO0.45% max

Silicon as SiO20.04% max

Iron as Fe2O30.03% max

Melting Point2800 c

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Magnesium Oxide

CAS1309-48-4

FormulaMgO

SynonymMag Oxide, MagOx, Mag Ox, MgO, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

K0.005%

CaO0.1%

SiO20.04%

Na0.020%

AppearanceFree flowing white powder

MgO99.5%

Surface Area170.0 M2/g

% Thru 325Mesh - Wet100 min.

Loss on Ignition7.0%

Bulk Density21.0 lbs/ft3

Cl0.15%

SO40.18%

Al2O30.004%

Fe2O30.015%

Melting Point2800 c

Insolubilityin alcohol

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Magnesium Oxide Light, USP

CAS1309-48-4

FormulaMgO

SynonymMagnesium Oxide, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

AppearanceClean, White Powder

Specific gravity3.46

Arsenic< 3 ppm

Free Alkali2.0 ml H2SO4/gm

Soluble Salts< 1.0%

Iron< 0.05%

MgO96% - 100.5%

Sulfates< 0.75%

Heavy Metals< 30 ppm

Acid Insoluble matter< 0.1%

Loss on ignition, USP<733>< 10.0%

Pounds / Solid gallons28.82

One Pound Bulks, (gallons)0.0347

Calcium Oxide< 1.0 %

Particle Size99% Min through 325 Mesh

Loose Density (lbs./ft 3)12 -19

Chlorides< 0.1%

Insolubilityin alcohol

Melting Point2800 c

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

Magnesium Oxide DC Granular

CAS1309-48-4

FormulaMgO

SynonymSeawater magnesia, White charcoal, Magnesium oxide (MgO), Magnesium oxide (CI 77711)

Density3.65-3.75

Very Solublein water

Particle Size (US Std. Sieve)65 - 80% through 60 Mesh

Free Formaldehyde %(as 0.1 NH2SO4/g) : < 2.0 ml

Chlorides(as Cl) : < 0.1 %

Arsenic PPM< 3 ppm

Loss on ignition (550°C)<8 %

Soluble Salts< 1.0 %

Density (lbs/gal(US)@20°)0.9 - 1.2 g/cc

Acid Insoluble matter< 0.1 %

Lead(as Pb) : 0.3 ppm Max

SensoricWhite to off-white granular powder bulk

Calcium(as CaO) : < 1.0 %

Heavy Metals, as Pb< 20 ppm

MgO - Magnesium Oxide (%)98% - 100.5%

Iron(as Fe) : < 0.05 %

Sulfates(as SO4) : < 0.75 %

Insolubilityin alcohol

Melting Point2800 c

Odorwh. powd. or cryst., odorless

Molecular weight40.31

Solubilitydil. acids, ammonium salt solns.

Boiling Point3600 c

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