久久777国产线看观看精品丨中日av乱码一区二区三区乱码丨奇米影视7777久久精品丨香蕉视频在线精品视频丨亚洲欧美日韩国产精品一区

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: 98国产精品综合一区二区三区| 亚洲国产精品日韩av不卡在线| 激情毛片无码专区| 久久精品熟女亚州av麻豆| 国产成人精品午夜视频| 久久99精品久久久久久蜜芽| 午夜福利92国语| 国产无遮挡裸体免费视频在线观看| 亚洲中文字幕久久无码精品| 乱码视频午夜间在线观看| 香港曰本韩国三级网站| 国产在线拍揄自揄拍免费下载 | 国产色婷婷亚洲99精品小说| 中文字幕乱码中文乱码777| 日本人妻伦在线中文字幕| 色欲av亚洲情无码av蜜桃| 香蕉eeww99国产精选免费| 性欧美老妇另类xxxx| 精品欧洲av无码一区二区| 亚洲国产成人精品久久久| 国产蜜芽尤物在线一区| 色偷偷偷久久伊人大杳蕉| 国产内射爽爽大片| 中文字幕乱码免费看电影| 亚洲人成网站在线播放小说| 动漫成人无码精品一区二区三区| 大战丰满无码人妻50p| 亚洲欧美日韩久久精品第一区| 四虎影视永久地址www成人| 99久久久无码国产精品动漫| 亚洲 卡通 欧美 制服 中文| 久久久久成人片免费观看蜜芽| 日日噜噜噜夜夜爽爽狠狠| 久久99精品国产麻豆蜜芽| 成熟女人特级毛片www免费| 日韩欧美亚洲综合久久影院| 亚洲人成网站18禁止无码| 宅男666在线永久免费观看| 久久亚洲精品无码av宋| 久久人妻少妇嫩草av| 少妇高潮惨叫久久久久久|