R_CHEMS 2005 £ version 230105.T \ 2-306.ps
LEAD DIOXIDE
Lead(IV) oxide GR for analysis
Lead dioxide – see Lead(IV) oxide, page 2-306
Assay (bromometric)
Substances insoluble in acid
Chloride (Cl)
Sulphate (SO 4 )
Total nitrogen (N)
C (Carbon)
Fe (Iron)
Cu (Copper)
Mn (Manganese)
Substances not precipitated by
hydrogen sulfide (as SO₄)
Lead monoxide – see Lead(II) oxide, page 2-306
Lead(II) nitrate GPR (lead nitrate)
Pb(NO₃)₂
M.W.331.21
Minimum assay
99%
Maximum Limits of Impurities
Chloride (Cl)
Copper (Cu)
Iron (Fe)
Substances not pptd by hydrogen sulphide (as
sulphates)
0.005%
0.002%
0.002%
0.2%
1.07407.0250
500 g
10099-74-8
£30.11
RT
£25.59
5.1/1469
R: 61-62-20/22-33-50/53
S: 53-45-60-61
(6x)
W
99.5%
Insoluble matter
Chloride (Cl)
Calcium (Ca)
Copper (Cu)
Iron (Fe)
Potassium (K)
Sodium (Na)
0.005%
0.0005%
0.002%
0.0005%
0.0005%
0.001%
0.002%
Maximum Limits of Impurities
250 g
10099-74-8
£23.90
RT
£20.32
5.1/1469
R: 61-62-20/22-33-50/53
S: 53-45-60-61
Dilute nitric acid-insoluble matter
Carbon Compounds (C)
Chloride (Cl)
Nitrogen Compounds (N)
Sulphate (SO4)
Calcium (Ca)
Copper (Cu)
Iron (Fe)
Manganese (Mn)
Potassium (K)
Sodium (Na)
10144 2J
(6x)
R: 61-62-20/22-33-50/53
Nitrogen content (N)
Phosphorus content (P)
Loss on drying
1317-36-8
£11.66
RT
R: 61-62-20/22-33-50/53
£9.90
6.1/2291
S: 53-45-60-61
(6x)
1 kg
1314-41-6
R: 61-20/22-33-62-50/53
8052-43-5
30
£28.58
RT
£25.72
5.1/1872
S: 53-45-60-61
(6x)
W
28242000
Lead(IV) oxide GPR (lead dioxide)
PbO₂
95%
Maximum Limits of Impurities
Nitric acid + peroxide-insoluble matter
Chloride (Cl)
Manganese (Mn)
500 g
1309-60-0
RT
R: 61-62-20/22-33-50/53
£50.10
5.1/1872
S: 53-45-60-61
10%
Passes test
Passes test
Passes test
Passes test
£18.24
NR
(6x)
E
29232000
Legionella BCYE α-growth supplement – see under
MICROBIOLOGY, page 2-360
Legionella combi pack – see under MICROBIOLOGY, page 2360
Legionella GVPC supplement – see under MICROBIOLOGY,
page 2-360
0.1%
0.05%
0.001%
£58.94
W
29232000
0.8-1.2%
2.0-2.5%
£21.45
+4°C
(6x)
Legionella CYE agar base – see under MICROBIOLOGY, page
2-360
M.W.239.20
Minimum assay (oxidimetric)
100 g
£80.77
NR
Sulphated ash
Microbiological test
Salmonella species (absent in 10g)
E.coli (absent in 1g)
Enterobacteriaceae (absent in 1g)
W
28241000
M.W. : 685.57
M.P.:500°C decomp.
PbO %
+4°C
Maximum Limit of Impurities
29863 2A
Pb₃O₄
2%
£95.02
Nitrogen content
Phosphorus content
Lead(II,IV) oxide red
29029 4Q
100 g
Lecithin soya bean
500 g
W
28249000
1.4-1.9%
About 3%
Maximum Limit of Impurity
M.W.223.20
0.5%
S: 53-45-60-61
(6x)
Lecithin egg GPR
PbO
Loss on ignition at 700°C
£25.06
5.1/1872
28342920
Lead(II) oxide GPR (lead monoxide)
98%
0.01%
0.005%
0.003%
0.005%
0.003%
0.01%
0.001%
0.02%
0.0002%
0.005%
0.01%
£29.49
RT
8002-43-5
Maximum Limit of Impurity
26572.295
100 g
1309-60-0
W
29053 4N
Minimum assay (complexometric)
98.0%
Maximum Limits of Impurities
Lead nitrate standard solution – see Lead standard solution
'SpectrosoL', page 2-305
29040 4E
M.W.239.20
Minimum assay
Also complies with the corresponding ACS specification
10145 3M
28249000
S: 53-45-60-61
PbO₂
M.W.331.21
Minimum assay
W
5.1/1872
Lead(IV) oxide `AnalaR' (lead dioxide)
28342920
Lead(II) nitrate `AnalaR' (lead nitrate)
Pb(NO₃)₂
£62.52
RT
R: 61-33-50/53-62
Also complies with BS 5936: 1981
29038 4R
250 g
1309-60-0
min 97 %
max 0.05 %
max 0.003 %
max 0.003 %
max 0.005 %
max 0.005 %
max 0.02 %
max 0.001 %
max 0.0002 %
max 0.5 %
(6x)
W
28249000
Leifson agar, modified – see under MICROBIOLOGY, page 2360
Leishman's staining solution (eosin methylene blue compound)
'Gurr' for microscopical staining – see under CELL
DIAGNOSTICS, page 2-124
Lenzol immersion oil 'Gurr' – see under CELL DIAGNOSTICS,
page 2-124
2-306
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