Merck
All Photos(1)

1.02536

Supelco

Cobalt(II) nitrate hexahydrate

for analysis EMSURE®

Synonym(s):
Cobalt(II) nitrate hexahydrate
Linear Formula:
Co(NO3)2 · 6 H2O
CAS Number:
Molecular Weight:
291.03
MDL number:
EC Index Number:
233-402-1

Quality Level

product line

EMSURE®

assay

≥99.0% (potentiometry)

form

solid

potency

691 mg/kg LD50, oral (Rat)

impurities

≤0.2% Substances not precipitated by ammonium sulfide (as sulfate)

pH

4.0 (20 °C, 100 g/L in H2O)

mp

57 °C

density

1.87 g/cm3 at 20 °C

bulk density

800 kg/m3

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Cu: ≤0.001%
Fe: ≤0.001%
Mn: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.005%

storage temp.

2-30°C

InChI

1S/Co.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;

InChI key

QGUAJWGNOXCYJF-UHFFFAOYSA-N

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Related Categories

Packaging

100, 250 g in Plastic bottle

Analysis Note

Assay (potentiometric): ≥ 99.0 %
Solution in water: passes test
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.005 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
Mn (Manganese): ≤ 0.005 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.005 %
Substances not precipitated by ammonium sulfide (as sulfate): ≤ 0.2 %

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 2 - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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