USD $800.00-800.00 / Metric Ton
USD $800.00-800.00 / Metric Ton
USD $1.00-10.00 / Kilogram
USD $8.20-8.50 / Kilogram
USD $1.00-10.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $800.00-800.00 / Metric Ton
USD $800.00-800.00 / Metric Ton
chemical name: nabr; bromide salt of sodium; sedoneural; sodium bromide
molecular formula: nabr
molecular weight: 102.9
cas no.: 7647-15-6
use:this product is used for making sensitive emulsion of photographic film and for making medicinal intermediates in medico-industries, e.g.diuretic,sedative etc. it is also used as bromide making complex material and complex dyes.
package: packed by 25kgs paper drums or 25kgs paper bags.
item
|
specification
|
|
export grade
|
photo grade
|
|
appearance
|
white crystal
|
white crystal
|
assay(as nabr)% ≥
|
99
|
99.5
|
degree of clearance
|
to pass test
|
to pass test
|
chloride(as cl)% ≤
|
0.1
|
0.1
|
sulphates(as so4 )% ≤
|
0.01
|
0.005
|
bromates(as bro3 )% ≤
|
0.003
|
0.001
|
ph(10% solution at 25 degree c)
|
5-8
|
5-8
|
moisture%
|
0.5
|
0.3
|
lead(as pb) % ≤
|
0.0005
|
0.0003
|
iodide(as i)% ≤
|
|
0.006
|
iron(as fe)% ≤
|
|
0.0002
|
transmittance 5% at 410nm
|
|
93.0-100.0
|
deoxidize experience(to kmno4)
|
|
the red unchanged above half hour
|