Skip to Content
Merck
All Photos(1)

Key Documents

1.02556

Supelco

Cobalt(II) sulfate heptahydrate

for analysis EMSURE®

Synonym(s):

Cobalt(II) sulfate heptahydrate

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
CoO4S · 7H2O
CAS Number:
Molecular Weight:
281.10
UNSPSC Code:
12352302
EC Index Number:
233-334-2
NACRES:
NA.21

Quality Level

product line

EMSURE®

Assay

≥99% (CoSO4.7H2O basis, complexometric)

form

solid

potency

582 mg/kg LD50, oral (Rat)

pH

4 (20 °C, 100 g/L in H2O)

mp

98 °C

solubility

362 g/L

density

1.95 g/cm3 at 20 °C

bulk density

900 kg/m3

anion traces

chloride (Cl-): ≤0.001%

cation traces

Ca: ≤0.005%
Cu: ≤0.001%
Fe: ≤0.0005%
N: ≤0.002%
Na: ≤0.01%
Ni: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.005%

storage temp.

2-30°C

InChI

1S/Co.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

InChI key

MEYVLGVRTYSQHI-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Related Categories

Linkage

Replaces: CX1825; CX1825-2

Analysis Note

Assay (complexometric, CoSO₄ 7 H₂O): ≥ 99 %
Chloride (Cl): ≤ 0.001 %
Total nitrogen (N): ≤ 0.002 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Na (Sodium): ≤ 0.01 %
Ni (Nickel): ≤ 0.005 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.005 %

Legal Information

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

Signal Word

Danger

Hazard Classifications

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

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service