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1.02529

Supelco

Cobalt(II) acetate tetrahydrate

for analysis EMSURE® ACS

Synonym(s):

Cobalt(II) acetate tetrahydrate

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About This Item

Linear Formula:
(CH3COO)2Co · 4 H2O
CAS Number:
Molecular Weight:
249.08
MDL number:
UNSPSC Code:
12352103
EC Index Number:
200-755-8

grade

ACS reagent

Quality Level

product line

EMSURE®

Assay

99.0-101.0% (complexometric)

form

solid

impurities

≤0.01% Insoluble matter

pH

7.2 (20 °C, 50 g/L in H2O)

mp

140 °C (Elimination of water of crystallisation)

solubility

348 g/L

density

1.70 g/cm3 at 20 °C

bulk density

850 kg/m3

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.005%
Cu: ≤0.0005%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
N: ≤0.002%
Na: ≤0.01%
Ni: ≤0.02%
Pb: ≤0.0005%
Zn: ≤0.001%

storage temp.

2-30°C

InChI

1S/2C2H4O2.Co.4H2O/c2*1-2(3)4;;;;;/h2*1H3,(H,3,4);;4*1H2/q;;+2;;;;/p-2

InChI key

ZBYYWKJVSFHYJL-UHFFFAOYSA-L

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Analysis Note

Assay (complexometric): 99.0 - 101.0 %
Insoluble matter: ≤ 0.01 %
pH-value (5 %; water): 6.0 - 8.0
Chloride (Cl): ≤ 0.001 %
Nitrate (NO₃): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.002 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.01 %
Mg (Magnesium): ≤ 0.005 %
Na (Sodium): ≤ 0.01 %
Ni (Nickel): ≤ 0.02 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.001 %

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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names


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’.

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