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MilliporeSigma

1.05866

Supelco

Magnesium oxide

for analysis (max.0.001% SO₄) EMSURE® ACS

Synonym(s):

Magnesium oxide, Magnesia usta

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About This Item

Empirical Formula (Hill Notation):
MgO
CAS Number:
Molecular Weight:
40.30
MDL number:
UNSPSC Code:
12352303
EC Index Number:
215-171-9
NACRES:
NA.21

assay:
≥97% (complexometric)
grade:
ACS reagent
form:
solid
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

product line

EMSURE®

assay

≥97% (complexometric)

form

solid

impurities

≤0.02% Substances insoluble in hydrochloric acid
≤0.02% Substances precipitated by ammonia
≤0.4% Substances soluble in water

loss

≤2% loss on ignition, 1000 °C

pH

10.3 (20 °C in H2O, saturated solution)

bp

3600 °C/1000 hPa

mp

2800 °C

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1 of 4

This Item
2433882203611.05867
assay

≥97% (complexometric)

assay

97%

assay

98%

assay

-

Quality Level

300

Quality Level

200

Quality Level

100

Quality Level

500

grade

ACS reagent

grade

ACS reagent

grade

-

grade

-

impurities

≤0.02% Substances insoluble in hydrochloric acid, ≤0.4% Substances soluble in water, ≤0.02% Substances precipitated by ammonia

impurities

≤0.02% NH4OH pptd., ≤0.02% insol. dil. HCl, ≤0.4% water soluble substances

impurities

<5% adsorbed gases removable by calcining at >900°C.

impurities

-

mp

2800 °C

mp

2852 °C (lit.)

mp

2852 °C (lit.)

mp

2800 °C

Analysis Note

Identity: passes test
Assay (complexometric): ≥ 97 %
Appearance of solution: passes test
Substances soluble in water: ≤ 0.4 %
Substances insoluble in hydrochloric acid: ≤ 0.02 %
Substances precipitated by ammonia: ≤ 0.02 %
Carbonate (as CO₂): ≤ 1.5 %
Chloride (Cl): ≤ 0.01 %
Nitrate (NO₃): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.001 %
Sulfate and sulphite (as SO₄): ≤ 0.02 %
Total nitrogen (N): ≤ 0.002 %
Heavy metals (as Pb): ≤ 0.003 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.05 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.005 %
K (Potassium): ≤ 0.005 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.25 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.0005 %
Barium and Strontium (as Ba): ≤ 0.005 %
Loss on ignition (1000 °C): ≤ 2.0 %
Conforms to ACS

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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