麻豆春药按摩无码av片,欧美狂野乱码一二三四区,国产普通话精品久久

国产成人午夜福利在线观看_国产a∨天天免费_日韩欧美大陆在线_18禁爆乳奶头免费_窝窝午夜福利影院_欧美日本特别在线_亚洲精品免费视频3_国产精品无码A∨精品性色_老鸭窝欧美一级一区二区_三级黄色毛片播放

PRODUCTS

hongyangchem

PRODUCTS

Organic ester series

Acetate series

Composite carbon source (liquid)

Ammonium acetate

Product Name

Ammonium acetate

CAS NO.

631-61-8

Molecular formula

CH₃COONH₄

Description

Ammonium acetate is supplied as fine white crystals.

Grades

Ammonium acetate is available in both technical or pharmaceutical grades.

Specification

Grade	Pharmaceutical	Technical
Appearance	fine white crystals	fine white crystals
Assay%≥	98.0	98.0
pH of a 5% solution at 25℃	6.7-7.3	6.7-7.3
Insoluble Matter% ≤	0.005	?
Residue after Ignition%≤	0.01	50
Chloride(CI)ppm ≤	5	?
Sulfate(SO4)% ≤	0.005	5
Heavy Metal(as Pb)ppm≤	10	10
Iron(Fe)ppm≤	10	?

Pharmaceutical grade conforms to: USP27

Packing

Ammonium acetate is supplied in woven lined paper bags or carton boxes.

Storage and handling

Ammonium acetate should be stored and handled in its original packaging or in a suitable sealed container and kept in a clean dry place. Under normal conditions of use ammonium acetate does not present any undue health hazard, Precautions should be taken to prevent entry into the eyes and prolonged or repeated skin contact with the solid or its solutions.

Application

Ammonium acetate is widely used in the dyeing and printing of textiles to promote good leveling of the dyestuff on the fabric. It is often used in dye baths in conjunction with acids and other sails. Ammonium acetate is also used in the manufacture of antibiotics and other pharmaceutical products, and in the surface treatment of metals. It can also be used in a number of organic reactions, as a (e.g. in the production of foam rubber),in the production of vinyl plastics, and in the manufacture of industrial detergents.

Properties

Physical properties
Molecular weight	77.08
Flash point	136℃
Solubility in water: at 4℃	148g/100ml
Melting point	116℃

[ BACK ]