Appearance white powder
Sulfate ppm ≤10
Tannic acid test ppm ≤1.0
Dry weightlessness% ≤10.0
Burning residue% ≤0.1
Turbidity ppm ≤10
Chromatic number ≤200
The products are mainly used in medicine, dyeing, food processing, feeding-stuff, defense, metallurgy of organic synthesis, mining, automotive and other fields of industry.
Storage & Package
Storage: Store in an airtight container.
Package: Inner plastic and outer woven bags, 25 kg net weight per bag.
Hunan Linong Gall Nut Industry Development Co.,Ltd., whose primitive name is Hunan Linong Technology & Trade co.,Ltd., was established in July 2007, with a registered capital of CNY280 million, covers an area of 37.5 mu. It is a high-technical enterprise with a whole industry chain which is engaged in gall nut base development and gall nut deep processing.
The "LiNong" trademark was identified as "famous Chinese trademark" by Chinese State Administration for Industry and Commence in 2016. Linong gallic acid products were rated as " Hunan brand-name products" in 2013. Hunan Linong Gall Nut Industry Development Co.,Ltd was honored as" 2012-2013 credibility and integrity unit" by Hunan Banking Association , In 2018, it was not only identified as " Hunan small giant enterprise" by Hunan province but also "high technical enterprise" by Chinese nation. Five patents have been obtained.
Now there are 20 kinds of gallic serious deep processing products in Linong.The main products are gallic acid with annual output of 1500 tons, propyl gallate with annual output of 500 tons, Pyrogallic acid with annual output of 800 tons. All indexes of the main products comply both with the international standards and the national standards. The indexes of gallic acid can meet the standards of Chinese National Forestry Standards LY/T1301-2005, European standards -93（-1grade), Japanese Industrial Standards (1grade), USP 26. The indexes of propyl gallate can meet Chinese National standards GB1886.14-2015, GBT26441-2010, BP2000, USP 26, Reagent Chemical and Standard, American Food FCC-IV Standards.
The indexes of pyrogallic acid accord with the requirements both U.S.A "Reagent Chemical and Standard" by Joseph Rosin Fifth-edition and JIS K8780.
If you are interested in our products, please feel free to contact us.