Tannic Acid

Tannic Acid

A tannin is an astringent chemical derived from plants. Tannic acid made by China H&Z® factory is one type of tannin that has a fairly weak acidity. In some trees, this chemical may act as protection against pests and fires, and it is believed that humans can benefit from the antibacterial, antifungal, and antioxidant properties of the substance. It is also used for industrial purposes, such as leather production and wood staining.This substance is usually found as a yellow, white, or light brown powder that tends to easily dissolve in water. It generally does not have a smell, but the taste is one that can cause a person to pucker.Since it will cause constipation in humans, tannic acid can be used to treat diarrhea. It can also be used to reduce the swelling of hemorrhoids and control internal bleeding. Externally, tannin can be added to creams and salves to help combat muscle and joint problems and to help heal wounds. It may also be used for the antifungal treatment of the feet, toenails, or fingernails.People are warned not to consume large amounts of tannic acid, and it should not be consumed on a regular basis. Although it can be helpful in many ways, tannin may also have adverse effects.

Product Detail

Innovation, excellent and reliability are the core values of our organization. These principles today extra than ever form the basis of our success as an internationally active mid-size corporation for Reliable Supplier Natural Chinese Gall Extract Gallic Acid /Tannic Acid CAS 1401-55-4, We have exported to more than 40 countries and regions, which have gained good reputation from our costumers all over the world. Reliable Supplier China Tannic Acid, Gallic Acid, Qualified R&D engineer is going to be there for your consultation service and we will try our best to meet your requirements. So remember to feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we'll surely offer you the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we will make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service.

China Tannic Acid Factory

Tannic Acid/Gallnut Extract CAS:1401-55-4

Tannic acid Chemical Properties
Melting point:218 °C(lit.)
Boiling point:862.78°C (rough estimate)
density:1.2965 (rough estimate)
refractive index:1.7040 (estimate)
solubility ethanol: soluble100mg/mL, yellow to brown
PH:3.5 (100g/l, H2O, 20°C)
Water Solubility:250 g/L (20 ºC)
SensitiveAir & Light Sensitive

Tannic Acid CAS:1401-55-4 Specification:




Physical Control

Purity(Tannic acid on Dry Basis)




Light brown powder



Proctically odourless



Neutral / Slight astringent taste



Very soluble in water. freely soluble in acetone, in alcohol.


Loss On Drying



Residue On Ignition









Heavy Metal (Pb)



Gums, Dextrin Test

No turbidity


Resins Test

No turbidity


Gallic Acid



Tannic Acid/Gallnut Extract CAS:1401-55-4 Introduction:
Tannin is one of the most abundant plant phenolic compounds except lignin. It is widely found in many plants, such as gallnut, chestnut, tea, grape, korshinskii, nut, root, sorghum and coffee. Tannins in plants are stored in organelles derived from chloroplasts, which are wrapped in the cytosol and do not interact with proteins and other nutrients, thus not interfering with the plant's own metabolism.
H&Z® Tannic acid has antioxidant effect and is a natural antiseptic, which can effectively prevent red wine from being oxidized and sour, so that the long-term storage of red wine can be kept in the best condition. In recent years, it has been found that acid alone is more effective in preventing and treating cardiovascular diseases. Cardiovascular disease is still the biggest killer threatening human health, so middle-aged and elderly friends to drink a moderate amount of wine every day, it is a good way to self-health care.
In the pharmaceutical industry, it is used as the raw material for preparing sulfonamides such as gallic acid, pyrogallol and sulfonamides. Tannin is a hemostatic, used in medicine to treat pharyngitis, tonsillitis, hemorrhoids and skin blister, etc. Internal use can stop diarrhea, bowel preparation, etc. Tannin can precipitate with metals, alkaloids and glycosides, etc. and has detoxification effect on these substances. single.

Tannic Acid CAS:1401-55-4 Function
1. The convergence effect: general pharmacological effects of tannin on protein precipitation, the skin, mucous membranes, ulcers and other local organizations protein coagulation, clinical for the treatment of hemorrhoids, cervical erosion. While with heavy metals, alkaloids to form insoluble compounds, and thus detoxification.
2. Antibacterial effect: the broad-spectrum antibacterial effect of tannin.
3. Antiviral: clinical employed to treat molluscum contagiosum.
4. Free radical scavenging and antioxidant effects.

Tannic Acid/Gallnut Extract CAS:1401-55-4 Application
1. Tannin Powder can be used as food antioxidants: generally with vitamin E, vitamin C or gallic acid mixed-use.
2. Tannin Powder used as water-based drilling fluid viscosity reducing agent, fluid loss agent, can improve the quality of the cake.
3. Tannin Powder used for tanning raw leather to convert it into the leather.
4. Tannin Powder can be used for toothpaste care and prevent bleeding gums: it has convergence and antibacterial properties, clinical for the treatment of local bleeding, 
5. Tannin Powder is mainly used in medicine, ink, printing, and dyeing, leather, and metallurgical industries and water treatment, the tannin in the water treatment process, with flocculation, deoxidation, scale and bactericidal effect.
6. Tannin Powder can be used as a low degree of wine, wine clarifier.
7. Tannin Powder is used for chromium-free passivation for galvanized coatings.

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