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:
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: 五月婷婷激情视频 | 日本特黄在线观看免费 | 黄乱色伦短篇小说h | 4438x成人全国最大 | 国产色爽女 | 免费一级欧美片片线观看 | 中文天堂| 国产色产综合色产在线观看视频 | sihu免费观看在线高清 | 美女扒开尿口给男人桶动态图 | 国产二区三区毛片 | 全免费一级毛片在线播放 | 成人三级在线观看 | 日本亚洲欧美美色 | 亚洲伊人久久大香线蕉影院 | 精品欧美一区二区三区 | 国产精选经典三级小泽玛利亚 | 69ww免费视频播放器 | 天天艹天天 | 自拍偷拍福利 | 天天看片天天干 | 国产一级特黄的片子 | 色多多入口 | 你懂的手机在线 | 香蕉久久夜色精品国产小说 | 日本久久综合视频 | 色综合久久综精品 | 黄色在线视频免费看 | 色视频免费 | 久久riav二区三区 | 中文字幕一二三四区 | 黄色网在线播放 | 免费看你懂的 | 九九51精品国产免费看 | 男男宿舍高h炒肉bl 男男污肉高h坐便器调教 | 在线视频午夜 | h在线观看网站 | 亚洲人成www在线播放 | 91正在播放 | 美女毛片视频 | 色婷婷5月精品久久久久 |