免费在线视频成人-免费在线色视频-免费在线色-免费在线日韩-咪咪久久-咪咪爱在线视频

Welcome to Jiurui Biology Chemistry Co.,?Ltd website!
Jiurui Biology  Chemistry Co.,?Ltd
Key words: Tannic acid, gallic acid, benzoic acid, hesperidin, chlorogenic acid, resveratrol
Gallnut range
Home > Products > Gallnut range
Gallic acid_anhydrous

Gallic acid_anhydrous

Name: Gallic acid_anhydrous
Synonyms: gallic acid
chemical name: 3,4,5-hydroxybenzoic acid
of the formula: C7H6O5

Molecular weight: 170.12

Structural formula:

Property: This product is white or white crystalline powder, soluble in 85 parts of water, 6 parts of ethanol, 2 parts of boiling water, slightly soluble in ether.

Specifications: The product complies with the national industry standard LY-T1301; European standard (first class); Japanese national JIS standard (first class); United States Pharmacopoeia; superior product

Technical index:

 

Gallic acid monohydrate

Anhydrous gallic acid

Appearance

White powder

White powder

Content%

≥99.0

≥99.0

Loss on drying%

≤10

≤0.5

Residue on ignition%

≤0.1

≤0.1

Chroma

≤180

≤180

Tannic acid ppm

1.0

1.0

Turbidity (50MG/ML ETOH)

clarify

clarify

Other Index

See COA

See COA

 

Uses: This product is widely used in industries such as medicine, dyes, chemical industry and organic synthesis, as well as the analysis of rare metals.

Storage: Avoid moisture and light, sealed tightly, no contact with metal.

Product validity: two years.

Packing: In woven bag with plastic inside and outside, net weight 25 kg per bag. It can be packaged according to customer requirements, such as carton or cardboard drum, and then palletized.

Main Products:Tannic acid(Industrial grade)  Gallic acid_anhydrous  Methyl gallate  Propyl gallate  Pyrogallic acid/Pyrogallol  3,4,5-Trimethoxy benzoic acid  
Contact Us

Contact Us

24-hour service hotline

+86-744-8561603(International Business)
+86-744-8561665,+86-744-8561604?(Domestic Business)
E-mail:
info@jiuruibiochem.com sales@jiuruibiochem.com
Address:Section C, Economic Development Zone, Zhangjiajie, Hunan, China.
Jiurui Biology & Chemistry Co.,?Ltd
Copyright(C)2020, Jiurui Biology & Chemistry Co.,?Ltd . All Rights Reserved. Supported by  ChemNet ChinaChemNet Toocle
主站蜘蛛池模板: 一级毛片免费毛片毛片| 小说区 亚洲 自拍 另类| 国产在线中文字幕| 欧美天天干| 欧日韩视频| 国产精品久久亚洲一区二区| 一级毛片一级毛片一级毛片| 全黄毛片| 精品亚洲一区二区| 8x国产在线观看| 国产免费三a在线| 国产午夜视频在线观看| 中文国产成人精品少久久| 国产最新精品视频| 福利视频一区二区牛牛| 九九久久国产精品大片| 午夜欧美在线| 粉嫩美女流白浆视频| 亚洲欧美影视| 欧美色图一区| 精品国产自在在线在线观看| 国产成人综合久久| 亚洲另类在线观看| 日韩欧美综合视频| 日韩高清在线观看| 欧美精品第1页在线播放| 欧美1页| 青草青草伊人精品视频| 亚洲va欧美ⅴa国产va影院| 精品国产一区二区三区2021| 国产女同一区二区三区五区| 久久er99| 亚洲日韩区在线电影| 欧美日韩亚洲色图| 中文日韩欧美| 欧美日韩亚洲国产| 亚洲精品视频免费观看| 欧美第三页| 最新中文字幕第一页| 综合 欧美 亚洲日本| 国产高清a毛片在线看|