亚洲天堂2017-亚洲天堂2018av-亚洲天堂777-亚洲天堂999-久久久久久久久久久福利-久久久久久久久久久观看

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:
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: 九色国产在视频线精品视频 | 日本午夜影院 | 色极影院| 中文字幕不卡在线播放 | 久久狠狠色噜噜狠狠狠狠97 | 欧美性另类69xxx | 91大神在线精品网址 | 在线观看国产一级强片 | 日本大片免费播放网站 | 78摸在线| 欧美福利一区 | 日日搞夜夜操 | 视频 在线| 日本福利小视频 | 国产午夜精品理论片免费观看 | 欧美黄一片| 性xxxxbbbb免费播放视频 | 久久综合97色综合网 | 免费看污视频的网站 | 韩国三级日本三级在线观看 | 美女又爽又黄视频 | 日本久久综合视频 | 亚洲欧美在线精品一区二区 | 美女被免费视频的网站 | 免免费看片 | 激情五月婷婷综合 | 97色涩 | 狠狠色狠狠色综合婷婷tag | 欧美一级欧美三级 | 性毛片 | 中文字幕二区三区 | 国产精品久久久久久久久齐齐 | 久久精品男人的天堂 | 黄的三级在线播放 | 狠狠色丁香婷婷综合小时婷婷 | 久久思re热9一区二区三区 | 乱码一区二区三区完整视频 | 日本在线视频一区二区 | 色图视频 | 亚洲狠狠97婷婷综合久久久久 | 亚洲精品二区中文字幕 |