国产成人精品免费视频大全,欧洲美女av一区二区免费看,国产精品成人无码av毛片,91国自产精品中文字幕亚洲,91亚洲国产成人久久精品网站
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 products
Home > Products > Gallnut products
Pyrogallic acid

Pyrogallic acid

Product name: pyrogallic acid

Alias: pyrogallic acid, pyrogallol, pyrogallol
Chemical name: 1,2,3-trihydroxybenzene
Molecular formula: C 6 H 3 (OH) 3
Molecular weight: 126.11

Structural formula:

Property: This product is a white shiny crystalline powder, soluble in 2 parts of water, 1 part of ethanol or 2 parts of ether.

Specifications: in line with the national industry standard LY-T 2862; in line with the US "chemical reagent standards"; Lawson V version and Japanese national standard K8780 reagent specifications.

Technical index:

 

Industrial grade

CP grade (chemically pure)

AR level (analytic pure)

 

Appearance

White powder

White powder

White powder

content

≥99.00

≥99.50

≥99.80

Water solubility

Clear and transparent

Clear and transparent

Clear and transparent

Melting point℃ t

131-135℃

132-135℃

132-135℃

Residue on ignition%

≤0.025

≤0.02

≤0.02

chloride%

≤0.002

≤0.001

≤0.001

Sulfate%

≤0.005

≤0.005

≤0.005

Heavy metal ppm

≤5.0

≤5.0

≤5.0

 

Uses: Widely used in chemical reagents and chemicals, pharmaceutical intermediates, fine chemicals, new photosensitive materials, food preservation, textile printing and dyeing, light industrial daily chemicals, color printing and plate making, microelectronics industry, rare metal analysis, gas analysis, photo development It can also be used for the analysis and determination of oxygen, antimony, bismuth, cerium, iron, molybdenum, tantalum and niobium.

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

Product validity: two years.

Packing: packed in cardboard drums, net weight 25 kg per drum.

Main Products:Industrial Tannic Acid  Gallic acid  Propyl gallate  Pyrogallic acid  3,4,5-Trimethoxybenzoic acid  Methyl 3,4,5-trimethoxybenzoat  
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
国产成人精品免费视频大全,欧洲美女av一区二区免费看,国产精品成人无码av毛片,91国自产精品中文字幕亚洲,91亚洲国产成人久久精品网站