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Tannic acid CAS# 1401-55-4 - SincereChemical Sincere Chemical.

Tannic acid CAS# 1401-55-4

Tannic acid , Promotion Season Now in Store and Free Sample for Testing with Factory Price
  • Appearance:LIGHT YELLOW POWDER
  • Assay: 93.0%min
  • Packaging: 25kg/drum
  • Sample: Available

Quality Control of Tannic acid

Chemical Structure
Tannic acid CAS# 1401-55-4
Packing of Tannic acid

Description of Tannic acid

Tannic acid is a specific commercial form of tannin, a type of polyphenol. Its weak acidity (pKa around 10) is due to the numerous phenol groups in the structure. The chemical formula for commercial tannic acid is often given as C76H52O46, which corresponds with decagalloyl glucose, but in fact it is a mixture of polygalloyl glucoses or polygalloyl quinic acid esters with the number of galloyl moieties per molecule ranging from 2 up to 12 depending on the plant source used to extract the tannic acid. Commercial tannic acid is usually extracted from any of the following plant part: Tara pods (Caesalpinia spinosa), gallnuts from Rhus semialata or Quercus infectoria or Sicilian Sumac leaves (Rhus coriaria).
According to the definitions provided in external references such as international pharmacopoeia, Food Chemicals Codex and FAO-WHO tannic acid monograph only tannins sourced from the above-mentioned plants can be considered as tannic acid. Sometimes extracts from chestnut or oak wood are also described as tannic acid but this is an incorrect use of the term. It is a yellow to light brown amorphous powder; 2850 grams dissolves in one litre of water (1.7 moles per liter).
While tannic acid is a specific type of tannin (plant polyphenol), the two terms are sometimes (incorrectly) used interchangeably. The long-standing misuse of the terms, and its inclusion in scholarly articles has compounded the confusion. This is particularly widespread in relation to green tea and black tea, both of which contain tannin but not tannic acid.
Tannic acid is not an appropriate standard for any type of tannin analysis because of its poorly defined composition.

Basic Info of Tannic acid

Basic Info

Chemical Name

Tannic acid

Synonyms

Acidum tannicum;Quercotannic acid;Querci-tannic acid;Digallic acid;Gallotannin;Expand

CAS No.

1401-55-4

Molecular Formula

C76H52O46

Molecular Weight

1701.20000

PSA

777.98000

LogP

4.83810

Safety Info

RTECS

WW5075000

Safety Statements

S24/25; S36; S26; S36/37/39; S22

HS Code

3201909000

WGK Germany

2

Risk Statements

R40

Hazard Codes

Xi

Caution Statement

P273

Hazard Declaration

H412

 

Properties

Appearance & Physical State

light yellow to tan solid with a faint odor

Density

2.12 g/cm3

Melting Point

218 °C (dec.)

Flash Point

198ºC

Refractive Index

1.927

Water Solubility

250 g/L (20 ºC)

Stability

Stable. Incompatible with metallic salts, strong oxidizing agents, iron and other heavy metals.

Storage Condition

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Store protected from light.

 

Numbering system

BRN number

8186396

MDL number

MFCD00066397

EINECS number

215-753-2

RTECS number

WW5075000

 

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What is Tannic acid ?

With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Tannic acid  which has developed particularly rapidly in recent years. Do you know about Tannic acid ?

 

The official answer:Ellagic acid, also known as tannic acid, is an organic substance with the chemical formula C76H52O46, which is a tannin obtained from Leptospermum. It is yellow or light brown light non-crystalline powder or scale; odorless, slightly special odor, extremely astringent taste. Soluble in water and ethanol, easily soluble in glycerol, almost insoluble in ether, chloroform, or benzene. Its aqueous solution becomes blue-black when it meets with iron salt solution, and the addition of sodium sulfite can delay the discoloration. In the industry, ellagic acid is used in a large number of applications for tanning leather and manufacturing blue ink. Tannic acid can make the protein coagulate. People chemically treat raw pigskin and raw cow skin with tannic acid, which can make the soluble proteins in raw skin coagulate. As a result, the raw hides that would have been put on for a few days and stink and rot, become beautiful, clean, flexible, and durable leather. This tanning process is called leather tanning.

On October 27, 2017, the World Health Organization’s International Agency for Research on Cancer published a preliminary compilation of references to the list of carcinogens, with tannins and tannins in the list of 3 categories of carcinogens.

What’s the application of Tannic acid ?

  1. It can be used as a food antioxidant. It is usually used after mixing with vitamin E, vitamin C, or gallic acid, etc.
  2. Tannin is used as a viscosity reducer and filtration loss reducer for water-based drilling fluid and can improve the quality of filter cake. It is also used for tanning rawhides to convert them into leather. Tannin has the activity of reacting with proteins, polysaccharides, alkaloids, microorganisms, enzymes, and metal ions, and has the properties of antioxidant, free radical capture, bacterial inhibition, and derivatization reaction. It is used more and more widely in food processing, fruit and vegetable processing, storage, cosmetics, medicine, and water treatment.
  3. Tannic acid can combine with protein to produce water-insoluble tannin, so it can be added in shampoo to prevent the dissolution of hair fiber protein and protect hair and used in nail products to increase nail strength. Gallic ellagic acid and isogallic ellagic acid have a strong free radical scavenging effect, similar to gallic acid and catechin compounds, and can be used in skincare products for sun protection and skin brightening. Ellagic acid has astringent and antibacterial properties, is clinically used to treat local bleeding, and can be used in toothpaste to protect teeth and prevent gum bleeding.
  4. Mainly used in medicine, ink, printing and dyeing, leather and metallurgy industries and water treatment, tannins in the water treatment process, with flocculation, deoxidation, scale inhibition, and sterilization. Because there are a large number of hydroxyl groups in the molecular structure and the carboxyl groups produced by partial hydrolysis, it generates complexes with calcium and magnesium ions in water, preventing calcium and magnesium ions in boiler water from forming scale, and also reducing the deposition of calcium sulfate in cooling water and playing a dispersing role. In addition, the cohesive force of tannin can gather the precipitate into water slag, through the drainage of the boiler and cooling water system.
  5. It can be used as the clarifying agent of low wine and fruit wine. It can also be used as a leather tanning agent.
  6. Tannic acid is used for chromium-free passivation of galvanized layers.

Conclusion

Sincere to the customer and in good faith of quality is our forever followed motto. It’s the basement to be a human and do business. We take all responsibility for our products and service sincerely. We are a company integrating R&D, production, and sales. The design, research, and development of pharmaceutical intermediates including more than 330 kinds of pharmaceutical intermediates such as Anti-infectives, Cardiovascular and Cerebrovascular Systems, Digestive System, Santi-tumor, Nervous System, Geriatric Drugs, and Gynecological Drugs. At the same time, we have more than 4,000 factories in strategic cooperation with nearly 50,000 chemical products, so we can provide you with a one-stop purchasing service, which greatly saves customers’ procurement costs and time.

Hello, I’m Pew Ni, the chemical products one-stop solution expert.

Hi, I‘m Peter Ni, the founder of Sincere-Chem, I’ve been running a company in China that exporting chemicals, pharmaceuticals, and intermediates for over 70 countries now. And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.

CEO Email: inquiry@sincerechemical.com

CEO Phone Number:
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Keywords of Tannic acid

Tannic acid ,1401-55-4, buy Tannic acid , Tannic acid  supplier, purchase Tannic acid , Tannic acid  cost, Tannic acid  manufacturer, order Tannic acid , high purity Tannic acid

 

WHY THEY SAY TO US

United Kingdom Giles
United Kingdom Giles
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Peter has been my partner for many years, we met at the Shanghai CPHI Fair in 2014, for the first time I didn't have much interest in Peter's products because our company had a stable supplier. Although we didn't work together, Peter would often send me important news and interesting trend information about the industry, so we became good friends, even though I didn't place any orders with him during this time, even if it was a sample order. In September 2016, our original supplier was unable to provide us with the quality and delivery guarantees we needed, so I first thought of Peter and his company. Until now, we have maintained a very good personal friendship in addition to a steady business relationship.
India Shikhar
India Shikhar
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In all my years of sourcing from China, I first time to found that working with Sincere Chemical was so good, they helped me with all the production and delivery as well as a lot of technical expertise, which saved me a lot of time. When I first approached Peter for a quotation for Optical Brightener, he made me a detailed quotation with not only prices but also foreign trade details, company profile, company strengths, R&D capabilities, production capacity, packaging methods, raw material control, environmental protection, and much more. This information was a very important reference for me in making purchasing decisions. Sincere Chemical is a trustworthy supplier and I believe our business will grow from strength to strength!
Korea Kim
Korea Kim
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Hi, I'm Kim, I'm Peter's partner and although I don't like him very much (because he never gives me more money for my prices, hahaha) I'm still willing to write him customer feedback. As an international buyer, I have to deal with a lot of things every day and my inbox is often full of development letters. It's a lot of junk and meaningless pleasantries, which I don't like that much, but Peter's emails always give me a better understanding of the product and the industry. I am also very pleased with his work ethic, and I am very happy with his work every time I work with him, not only in providing quotations but also in facilitating all the details of my work so that I can concentrate more on other things, so he is the best supplier for me. Although his prices are not the lowest among all suppliers, his products give me the greatest peace of mind.
USA Franklin
USA Franklin
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Sincere Chemical team visited our USA factory in the year of 2017. We think highly of cooperation with them. We thanked you for the past excellent orders and best product quality. We also talked about some new products for future orders. We will be still in strategic cooperation in the future and help each other.
Canada Kate
Canada Kate
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I just got the product. The quality is awesome. I’m very happy. Hope to place soon a new order in your company. Also wish for our future business.
Unilever
Unilever
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Sincere Chemical is a reliable and professional company. Not only on exporting but also their professional team service. Their team gave us so many suggestions for our new project. We are really satisfied with their awesome service and best product quality. Sincere-Chem’s vendor code is 51465768 in our cooperated vendor list system.
Dupont
Dupont
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I have visited Sincere Chemical company in the year 2018. Their company can be considered as one of the most professional, customer-focused, and product quality-driven companies that I have worked with in recent years.
Brazil Aline
Brazil Aline
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We are a pharmaceutical products manufacturer in Brazil. I’m happy to cooperate with Sincere Chemical especially cooperate with Peter. Peter is patient and friendly. I’m satisfied with his 24*7 hours service. We are not only cooperators but also best friends with each other.
Mexico Gonzalo
Mexico Gonzalo
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Great service and very supportive. This is my first order and I feel fortunate to be with Peter and his company. Product received was the right good quality product, so my review is more related with the quality, service and shipment. Thank you for sending. next time I will order again. Good supplier...
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