mailbox        ID:      @ksjingke.com       PW:

Add: Zhiwei Road No. 259,Qiandeng
,Town Kunshan City ,Jiangsu,China
Tel: +86-512-57468758
   +86-512-57479318
Fax: +86-512-57468585
E-mail: sales@ksjingke.com
URL: www.kbnur.cn


Potassium hydroxide

Potassium hydroxide
Parameter Unit High purity electronic grade Reagent grade
UP Specification EL Specification AR Specification
Assay % ≥95.0 45.0-47.0 ≥85.0
Color ----- White flake or granular White flake or granular White flake or granular
Appearance ----- White flake or granular ----- White flake or granular
Clarity test ≤1 ----- ≤4
Particles(≥0.5um) piece/ml ≤25 ----- -----
Particles(≥0.3um) piece/ml ≤150 ----- -----
Particles(≥0.2um) piece/ml ≤300 ----- -----
Particles(≥1.0um) piece/ml ----- ----- -----
Ignition residue(sulphate) ppm ----- ≤50 -----
Chloride ppm ≤5000 ≤50000 ≤100
Sulfate ppm ≤5000 ≤10000 ≤50
Total nitrogen content ppm ≤5000 ≤5000 ≤10
Silicate ppm ≤3 ----- ≤200
Phosphate ppm ≤10 ≤2000 ≤50
Aluminum ppm ≤5 ----- ≤50
Arsenic ppb ≤30 ----- -----
Barium ppb ≤10 ----- -----
Beryllium ppb ≤5 ----- -----
Bisumuth ppb ≤5 ----- -----
Boron ppb ≤10 ----- -----
Cadmiuth ppb ≤10 ----- -----
Calcium ppb ≤100    

337p日本大胆欧美人术艺术_成年片黄网站色大全免费_欧美成年性色生活片 毛片