亚洲精品永久黄色视频_青青青国产在线91_激情五月天婷婷中文资源站_国产无遮挡裸体免费视频不卡_91视频男人的天堂_欧美日韩一级特黄大片_亚洲国产精品影院网_毛片大全**在线_黄色免费看片app_波多结衣一区二区三区高清

Chemical reagent
Ammonium carbonate

Product name

Ammonium carbonate

Specification

Reagent grade

Molecular formula

(NH4)2CO3

CAS

10361-29-2

H.S. CODE

2836994000

Molecular weight

96

Appearance

Colorless flake

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 662-1978

Test items

Specification

AR grade

CP grade

Appearance

Colorless flake

Colorless flake

NH3 Content

40.0%

40.0%

Appearance of solution

Conform

Conform

Water insoluble

0.002%

0.01%

Residue on ignition

0.002%

0.01%

Chloride

0.0005%

0.001%

Sulfide

0.002%

0.005%

Iron

0.0001%

0.0005%

Heavy metals

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