USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $1,000.00-1,800.00 / Metric Ton
USD $53.00-55.00 / Kilogram
USD $0.40-0.54 / Metric Ton
USD $70.00-90.00 / Metric Ton
USD $1,010.00-1,020.00 / Metric Ton
USD $130.00-170.00 / Metric Ton
specification:
items
|
photo first grade
|
photo second grade
|
medical grade
|
main content
|
99.5% min
|
99.5% min
|
99.0% min
|
loss on drying
|
0.3% max
|
0.3% max
|
0.5% max
|
chloride
|
0.2% max
|
0.2% max
|
0.5% max
|
bromate
|
0.001% max
|
0.003% max
|
0.005% max
|
iodide
|
0.001%max
|
0.005% max
|
0.005% max
|
sulphate
|
0.005%max
|
0.005% max
|
0.01% max
|
ph value(5)
|
6.07.5
|
5.57.5
|
5.57.5
|
as
|
≤0.0004
|
||
pb
|
0.2ppm max
|
4ppm max
|
10ppm max
|
fe
|
0.5ppm max
|
4ppm max
|
5ppm max
|
cu
|
0.5ppm max
|
1.0ppm max
|
1ppm max
|
bi
|
0.2ppm max
|
0.5ppm max
|
|
peroxide solution penetrability(250g/l)
|
93100
(410nm)
|
85100(410nm)
|
|
transparency test
|
qualified
|
qualified
|
|
ammonia
|
15.0ppm max
|
||
peroxide solution chromaticity(250g/l)
|
(15.0 black once)max
|
package: 25kgs/bag
place of origin: china
usage: applied to photographic emulsions and developers, pharmaceutical industry, and also as nerve sedative in medicine.