..国产精品人人做人人爽_免费毛片搬运工永久发布页_国产无遮挡又黄又爽在线看_嘟嘟嘟影院免费韩国_日韩动漫一区二区三区_日韩三级毛片电影_一级特黄大片大全_蜜桃AV国内精品自在线拍_国产偷情熟女自拍视频_日本熟妇网站大全

Chemical reagent
Potassium carbonate

Product name

Potassium carbonate

Specification

Reagent grade

Molecular formula

K2CO3

CAS

584-08-7

H.S. CODE

2836400000

Molecular weight

138.21

Appearance

White granule

Package

25KG Woven bags or fiber drums

Property

     White powder. Odourless and tasteless. Dew buy air. There is no change, a proportion of 2.710. Melting point 1339 &; ordm C. Almost insoluble in water in contain or ammonium trioxide iron water dissolves, insoluble in alcohol. Encounter dilute acetic acid, rare hydrochloric acid, nitric acid happen bubble boiling, thin and dissolve. Heating is decomposed into CaO (CaO) and carbon dioxide (CO2).

Application:

    According to the different crushing fineness, industry is divided into four different specifications: solo, sf, three fly, fly, respectively applied for every four industry.

Test standardGB/T1397-1995

Test items

Specification

AR grade

CP grade

Appearance

White granule

White granule

Assay

99.5%

99.0%

Appearance of solution

Conform

Conform

Water insoluble

0.005%

0.03%

Loss on dry

1.0%

2.0%

Chloride

0.003%

0.01%

Sulfur compounds

0.003%

0.01%

Total nitrogen

0.001%

0.01%

Phosphate and silicate

0.005%

0.02%

Sodium

0.05%

0.1%

Magnesium

0.002%

0.005%

Calcium

0.002%

0.02%

Iron

0.0005%

0.002%

Copper

0.0005%

0.001%

Storage

    Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.



Product categories
Copyright Langfang hui's fine chemical co., LTD. All rights reserved 冀ICP備20000901號-1
TOP