久久99精品国产女不卡7777,国产在线精品一区二区不卡顿,免费人成网站在线观看视频,jrs低调看高清直播,国产精品无码专区

China Bon Acid - China Supplier
China Bon Acid - China Supplier

Bon Acid

Price:Negotiable
Industry Category:
Product Category:
Brand:
Spec:


Contact Info
  • Add:Dantu Town Eastern Suburbs Zhenjiang, Jiangsu, China, Zip: 212014
  • Contact:
  • Tel:+86-511-88781820;88784621
  • Email:maoyuanchem@gmail.com

Other Products

Description
Additional Information

Chemical Name: 2-Hydroxy-3-Naphthalene Carboxylic acid

Other Name: 3-Hydroxy-2-Naphthalene Carboxylic acid

Physical and Chemical Properties: Light yellow powder. Melting range 217-223. Easily soluble in alcohol, ether. Soluble in benzene, alkali solution. Slightly soluble in water.

 Specifications: Use HG/T2745-96 as a standard for judging product.

Appearance:light yellow powder.

Purity :98.5%

1,2 acid :0.5%

Beta-Naphthol :0.5%

Water%:0.3

Ash%:0.5

Initial melting Point:217

Insolubles in NaOH:0.2%

Industry Category
Product Category
Brand:
Spec:
Stock:
Origin:
 - Partner Programme - Old Version
Copyright ? armluntan.cn. All Rights Reserved.