Supply Galla Chinensis Extract Tannic acid 98% 1401-55-4 CAS NO.1401-55-4

A tannin is an astringent chemical derived from plants. Tannic acid 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 improve 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 of the feet, toenails, or fingernails.

Chemical Name: Tannic acid
CAS No.: 1401-55-4

Chemical Structure: C76H52O46

Molecular weight: 1701.2

Appearance: Yellow to light brown powder

Assay: 98%min

1.It is ight yellow amorphous powder or loose lustrous scaly or spongy solid that darkens when exposed to air.

2.It is odorless and has a strong astringent taste.

3.It is soluble in water, ethanol, acetone, almost insoluble in benzene, chloroform, ether and petroleum ether.

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.

5. Tannin Powder is mainly used in 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.