| Customization: | Available |
|---|---|
| CAS No.: | 12124-97-9 |
| Formula: | Brh4n |
|
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Items
|
Photo First Grade
|
Photo Second Grade |
AA Grade
|
|
Main content
|
99.5% min
|
99.5% min
|
99.0% min
|
|
Loss on drying
|
0.5% max
|
0.5% max
|
0.5% max
|
|
Water Insoluable
|
0.005% max
|
0.01% max
|
-
|
|
Chloride
|
0.2% max
|
0.2% max
|
0.5% max
|
|
Iodide
|
0.001%max
|
-
|
-
|
|
Sulphate
|
0.005%max
|
0.005% max
|
0.01% max
|
|
PH Value(5%)
|
4.5-6.0
|
4.5-6.0
|
4.5-6.0
|
|
As
|
-
|
-
|
≤0.0004%
|
|
Pb
|
0.2ppm max
|
5ppm max
|
5ppm max
|
|
Fe
|
0.5ppm max
|
1ppm max
|
-
|
|
Cu
|
0.5ppm max
|
1.0ppm max
|
-
|
|
Bi
|
0.2ppm max
|
0.5ppm max
|
-
|
|
Peroxide solution penetrability(250g/l)
|
93~100 (410nm) |
85~100(410nm)
|
-
|
|
Transparency test
|
Qualified
|
Qualified
|
-
|
|
Peroxide solution chromaticity(250g/l)
|
(15.0 Black once)max
|
-
|
-
|
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