USD $1.00-10.00 / Kilogram
USD $12.00-15.00 / Kilogram
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photographic grade potassium bromide kbr
chemical formula : kbr m.w.: 119.01
description: white crystalline, or powder, density in 2。75(at 25℃),melting point on 734℃,boiling point on 1435℃, dissolved in water and glycerin, with hygroscopicity, ph in 7.
application: be used as developer and thicker, sedative in medicine, also be used to preparation of special soap, carving and printing
cas#:7758-02-3
name: photo grade potassium bromide |
manufacture: twin international co., limited |
|
quantity: 18t |
package: in 25kg net plastic woven bags. lined with plastic bags |
|
item |
specification |
test results |
appearance |
white crystal or powder |
ok |
assay: % |
≥ 99.5 |
99.51 |
degree of clearance |
passed |
ok |
chlorides (as cl ) % |
≤ 0.1 |
0.02 |
sulphates (as so4 ) % |
≤ 0.005 |
< 0.005 |
bromates(as bro3)% |
≤0.001 |
< 0.001 |
ph |
5.5—8.5 |
6.11 |
moisture % |
≤ 0.3 |
0.20 |
lead(as pb)% |
≤ 0.0003 |
< 0.0003 |
transmittance 5% at410nm |
≥96.0 |
98 |
iron(as fe2o3)ppm |
≤2 |
<2 |
comments: confirm to the standard |
remark:we may make special specification according to customer’s requirements.