Selenium Powder

We are offering selenium powder.
Formula： se
molecular weight： 78.96
cas no.： 7782-49-2
purity ： 99.9% 99.99% 99.999%
process: selenium is the use of crude selenium in anode mud or high selenium content of industrial waste, purification by wet chemical metallurgy method
application: used in the medicine industry, chemical engineering, metallurgy industry, glass industry, electronics industry, static electricity copies, etc.
Package: inside is plastic film bag, outside is steel drum or cardboard bucket, net weight is 25 kgdrum
specification
se：99.99％min z
fe：0.003％max
as：0.001％max
te：0.1％max
so4：0.05％max
h2o：0.02％max
size:(-60mesh)85％min
high purity selenium(99.99%、99.999%)
(1)used for far-infrared glass,optical lenses
a. Impurity(no more than 100ppm)　
b. The content of hydrogen, oxygen and carbon in the raw material must not be higher than 10-3～10-5wt%; various impurities such as advanced micro devices particles. Must be lower than 5×10-5wt%.
C, granularity: granule diameter 2mm.
D, package: polyethylene bottle, foil vacuum.
(2)used for the electronic materials, compound materials ，solar photovoltaic cells
a, impurity (no more than 10ppm):
b, granularity: 325 eyes ～ 1,000 eyes
c, package: polyethylene bottle, foil vacuum.
(3)used for toner cartridge material
a. Lmpurity (no more than 10ppm):
b, granularity: granule diameter 2mm; powder: