国产精品成人av_国产SUV精品一区二区33_久久婷婷五月综合色首页_亚洲人成自拍网站在线观看_男人肌肌捅女人肌肌视频_狼群社区视频WWW国语

Detail

Potassium carbonate

Name: Potassium carbonate

Molecular formula: K2CO3

Molecular weight: 138.2

HS CODE: 28364000

Properties:

Colorless or white hexagonal or orthorhombic crystal or granular powder. Relative density is 2.662, inversion point is 588 ℃, melting point is 1069 ℃, boiling point is 1689 ℃. Soluble in water (12G/100ML water at 25 ℃, 24.1G/100ML water at 100 ℃), insoluble in alcohol, acetone and carbon disulfide.

Uses:
Potassium carbonate functions as raw material for producing electronic valve, television pictrue tube and glass shell of computer monitors.

 

Specification: industrial grade potassium carbonate (GB/T 1587-2000)

Item Unit Superior grade TV glass grade First grade Qualified grade
Assay (K2CO3 ) % ≧ 99.0 99.0 98.5 96.0
Chloride (KCl) % ≦ 0.01 0.03 0.10 0.20
Sulfur compound (K2SO4) % ≦ 0.01 0.04 0.10 0.15
Iron % ≦ 0.001 0.001 0.003 0.010
Water insoluble matter % ≦ 0.02 0.04 0.05 0.10
Loss on ignition % ≦ 0.6 0.8 1.00 1.00

 

Specification: food additive potassium carbonate (HG2452-93)

Item Unit Standard value
Potassium carbonate (K2CO3 ) % ≧ 99.0
Chloride (KCl) % ≦ 0.01
Sulfur compound (K2SO4) % ≦ 0.01
Iorn % ≦ 0.001
Water insoluble matter % ≦ 0.02
Loss on ignition % ≦ 0.6
Arsenic % ≦ 0.0003
Heavy metal (Pb) % ≦

0.002

 

Packing:
woven bag or plastic-plastic composite bag lined with plastic bag, net weight is 25/50/500/800/900/1000 KG.
Storage and transportation:
Keep in dry and well-ventilated warehouse. To protect from rain and damp. Separate from acids.

 





主站蜘蛛池模板: 麻豆传媒在线观看视频 | 国产高清好大好爽受不了了 | 蜜臀亚洲AV无码之国产精品 | 人妻精品久久无码区 | 亚洲精品无码成人片久久不卡 | 啊灬啊灬啊灬快灬深高潮了 | 精品资源成人 | av在线中文播放 | 欧美一级大胆视频 | 亚洲一区二区三区精品动漫 | 亚洲人精品午夜射精日韩 | 秋霞成人午夜鲁丝一区二区三区 | 91免费大片| 欧美1区2区在线观看 | 欧美在线公开视频 | 亚洲欧洲国产综合aⅴ无码 991本久久精品久久久久 | 可以直接看的无码AV | 久久96国产精品久久99软件 | 麻豆一级片 | 精品综合久久久久久97 | 91精品播放 | 91久久丝袜国产露脸动漫 | av中文字幕网 | 成人免费久久 | 亚洲精品成人久久一区二区 | 亚洲无遮挡av | 亚洲第一欧美 | 天天操天天操天天爽 | 久久精品30 | 欧洲熟妇色XXXX欧美老妇老头多毛 | 韩国18禁男男黄网站 | 国产超碰97| 久草热久草视频 | 狠狠五月激情六月丁香 | qvod视频在线观看成人 | 久久图库99图库 | XXX波多野结衣苍井空 | www.四虎影院在线观看 | 日韩精品国产一区二区 | 久久人妻无码一区二区三区AV | 亚洲国产精品无码久久久不卡 |