R_CHEMS 2005 £ version 230105.T \ 2-153.ps
COBALT(II) CHLORIDE
Cobalt(II) chloride 6-hydrate GPR
(cobaltous chloride)
Cobalt(II) nitrate 6-hydrate `AnalaR'
(cobaltous nitrate)
CoCl₂.6H₂O
Co(NO₃)₂.6H₂O
M.W.237.93
Minimum assay
97%
Maximum Limits of Impurities
Sulphate (SO4)
Iron (Fe)
Lead (Pb)
Zinc (Zn)
Substances not pptd by ammonium
sulphide (as sulphates)
27790 2M
27790 4X
27790 AU
100 g
500 g
5 kg
7791-13-1
RT
£24.70 (6x)
£81.93 (6x)
9/3077
R: 49-22-42/43-50/53
S: 53-22-45-60-61
99.0%
Maximum Limits of Impurities
0.007%
0.005%
0.002%
0.05%
0.3%
£29.06
£96.38
£304.15
M.W.291.03
Minimum assay
Chloride (Cl)
Sulphate (SO4)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Manganese (Mn)
Zinc (Zn)
Solution in water
Substances not precipitated by
ammonium sulphide (as sulphate)
W
W
E
28273400
0.005%
0.005%
0.001%
0.001%
0.001%
0.005%
0.005%
Passes test
0.2%
Also complies with the corresponding ACS specification
Recommended reagent for potassium
(IUPAC, 5th Report, 1964)
Cobalt(II) chloride 6-hydrate `AnalaR'
(cobaltous chloride)
CoCl₂.6H₂O
10083 3Q
10026-22-9
R: 22-40-43
M.W.237.93
Assay (complexometric)
99.0-102.0%
Water-insoluble matter
Nitrogen compounds (N)
Sulphate (SO4)
Calcium (Ca)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Magnesium (Mg)
Manganese (Mn)
Nickel (Ni)
Potassium (K)
Sodium (Na)
Zinc (Zn)
0.01%
0.002%
0.005%
0.005%
0.0005%
0.001%
0.0005%
0.002%
0.001%
0.005%
0.005%
0.01%
0.002%
Maximum Limits of Impurities
100 g
£47.61
RT
£40.46
(6x)
5.1/1477
W
28342920
S: 36/37
Cobalt(II) nitrate standard solution (cobaltous nitrate standard
solution) – see Cobalt standard solution 'SpectrosoL', page 2152
Cobaltous acetate – see Cobalt(II) acetate, page 2-152
Cobaltous carbonate – see Cobalt(II) hydroxide carbonate,
page 2-153
Cobaltous chloride – see Cobalt(II) chloride, page 2-152
Cobaltous nitrate – see Cobalt(II) nitrate, page 2-153
Also complies with the corresponding ACS specification
Cobaltous sulphate – see Cobalt(II) sulphate, page 2-153
Recommended reagent for zinc
(IUPAC, 5th Report, 1964)
10082 3X
10082 4P
100 g
500 g
7791-13-1
£53.27
£216.23
RT
£45.29 (6x)
£183.78 (6x)
9/3077
R: 49-22-42/43-50/53
S: 53-22-45-60-61
W
A
Cobalt oxide GPR (cobalt(II)-cobalt(III)oxide) cobalt black
28273400
Co₃O₄
Minimum cobalt (Co) content
Sulphate (SO4)
Iron (Fe)
Lead (Pb)
Nickel (Ni)
Zinc (Zn)
Substances not precipitated by
ammonium sulphide (as sulphates)
27789 3F
250 g
12602-23-2
R: 40-43
Iron (Fe)
Lead (Pb)
Nickel (Ni)
0.05%
0.01%
0.005%
0.02%
0.02%
1.5%
£136.33
RT
27926 2L
NR
100 g
1308-06-1
R: 40-43
£115.88 (6x)
0.1%
0.02%
0.3%
£65.60
RT
£55.77
NR
CoSO₄.7H₂O
M.W.281.10
500 g
10026-22-9
R: 22-40-43
£65.95
9/3077
S: 53-22-45-60-61
(6x)
W
28332930
Cobalt(II) sulphate heptahydrate GR for
analysis
W
28342920
Assay (complexometric)
Chloride (Cl)
Total nitrogen (N)
Ca (Calcium)
Cu (Copper)
Fe (Iron)
Na (Sodium)
Ni (Nickel)
Pb (Lead)
Zn (Zinc)
1.02556.0100
100 g
10026-24-1
min 99 %
max 0.001 %
max 0.002 %
max 0.005 %
max 0.001 %
max 0.0005 %
max 0.01 %
max 0.005 %
max 0.001 %
max 0.005 %
£44.47
RT
R: 49-22-42/43-50/53
www.vwr.com
0.02%
0.005%
0.005%
£77.59
RT
R: 49-22-42/43-50/53
£80.02 (6x)
5.1/1477
S: 36/37
500 g
10026-24-1
0.005%
0.02%
0.01%
0.3%
£94.15
RT
27801 4Q
97%
Chloride (Cl)
Sulphate (SO4)
Iron (Fe)
Nickel (Ni)
27795 4B
Chloride (Cl)
Iron (Fe)
Lead (Pb)
M.W.291.03
Maximum Limits of Impurities
97%
Maximum Limits of Impurities
Cobalt(II) nitrate 6-hydrate GPR (cobaltous
nitrate)
Minimum assay (potentiometric)
W
28220000
S: 36/37-24
Minimum assay (ex Co)
Co(NO₃)₂.6H₂O
(6x)
Cobalt(II) sulphate 7-hydrate GPR
(cobaltous sulphate)
Z
28369918
S: 36/37
70%
Maximum Limits of Impurities
47%
Maximum Limits of Impurities
M.W.240.80
Minimum assay (complexometric, Co)
Cobalt(II) hydroxide carbonate GPR
NR
W
28332930
S: 53-22-45-60-61
2-153