免费国产美女视频永久免费_午夜在线成人毛片_日韩精品亚洲成人在线中文字幕_黄色一级片大美女_黄色网站视频日韩_国产日韩欧美福利二区_亚洲91麻豆视频_国产成熟女人性满足视频_国产精品久久久精品爽_先锋资源亚洲有码中文字幕

Welcome to Hebei Huaheng Biological Technology Co., Ltd!
Products
Contact
Hebei Huaheng Biological Technology Co., Ltd
Address: No.777 Xinghua South Street,Jizhou City,Hebei Pro.,China Postal Code: 053200
Postal Code: 053200
TEL:0318-8628255
FAX:0318-8628286
E-mail:jizhouhuaheng@163.com
Web site:xamcp.cn/en
Current position: Products > Amino Acid > DL-Alanine
DL-Alanine


Chemical Name:DL-2-Aminopropanic Acid, DL-α-Aminopropanic Acid 

Structure Formula

Molecular Formula

C3H7NO2

Molecular Weight

89.09

Cas No:

[302-72-7]

Characteristics:

This product is a white crystalline powder, odorless and peculiarly sweet. It dissolves readily in water, and slightly in ethanol.

Quality Standards:

AJI92

Item

Specifications(AJI92)

Appearance

White crystalline powder

Assay (C3H7NO2),%(on dry matter)

98.5~101.5

Transmittance, %

95.0

pH Value

5.5~7.0

Heavy Metals (as Pb), %

0.001

Loss on drying, %

0.2

Residue on ignition, %

0.1

Chloride (as Cl), %

0.02

Sulfate (as SO4), %

0.02

Ammonium as (as NH4), %

0.02

Arsenic (as As), %

0.0001

Iron (as Fe), %

0.002



  
 

Package and transport:

  A double-layer package is used for this product, the inner layer being polyethylene bag, and the outer layer being appear board barrel, containing a net weight of 20kg/barrel. packaging may be arranged according to the requirement of the client.

  Handle with care in order to avoid damaging the package. Protect them from sunshine and rain.

  Do not transport them together with poisonous or harmful goods. This product is a non-dangerous product and can be transported as g general chemical product.

Storage:

  Store in shaded ,cool and dry places. Do not store it together with poisonous or harmful goods in order to avoid pollution. the expiry date is for two years.



本文地址:xamcp.cn/en/products_3.html
           
上一個產(chǎn)品:DL-Methionine
下一個產(chǎn)品:L-Alanine
Copyright:Hebei Huaheng Biological Technology Co., Ltd.
Address: No.777 Xinghua South Street,Jizhou City,Hebei Pro.,China Postal Code: 053200
TEL:0318-8628255
FAX:0318-8628286
E-mail:jizhouhuaheng@163.com
Web site:http://xamcp.cn

WeChat public number
Link: 暫無友情鏈接 ! |