| CAS No.: | 1401-55-4 |
|---|---|
| Formula: | C76h52o46 |
| EINECS: | 215-753-2 |
| Type: | Feed Additive |
| Appearance: | Powder |
| Quality: | Top Grade |
| Samples: |
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| Customization: |
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Audited Supplier High quality Tannic Acid
Tannic acid, also known as tannic acid, is an organic compound with the chemical formula C76H52O46. It is a yellow or brownish yellow powder, and its aqueous solution turns blue black when it meets an iron salt solution. The addition of sodium sulfite can delay the color change. In industry, tannic acid is widely used in tanning leather and manufacturing blue ink. Tannic acid can coagulate proteins. People chemically treat pig and cow hides with tannic acid, which can coagulate the soluble proteins in the hides. So, the raw leather that would have smelled and rotted in a few days turned into beautiful, clean, flexible, and durable leather. This tanning process is called leather tanning.
Tannic acid is a specific form of tannin, a type of polyp-henol. Its weak acidity (pKa around 6) is due to the numerous p-henol 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.
In many parts of the world, its uses in food are permitted. Tannic acid is generally recognized as safe for use in baked goods and baking mixes, alcoholic and non-alcoholic beverages, frozen dairy products, soft and hard candy, meat products, and rendered animal fat.
Contact us as soon as possible to learn about product details and obtain free samples!
HAOZE Supply Top Grade Tannic acid, mainly used in Feed Additive field.
Sample Order is supported. MOQ is 1kg.
| Product Name: | Tannic acid | Assay: | 98% |
| MW | 1701.2 | Appearance: | Yellow or brownish yellow powder |
| CAS. Number | 1401-55-4 | Molecular Formula | C76H52O46 |
| Minimum order quantity | 1kg | Packing: | 1kg/aluminum foil bag; 25kg/drum |
| Item | Specification |
| Content (%) | ≥93.0% |
| Appearance | Yellow or brownish yellow powder |
| Odor | Practically odorless |
| Taste | Neutral/Slight astringent taste |
| Solubility | Very soluble in water, freely soluble in alcohol |
| Identification A | Conform |
| Identification B | Conform |
| Identification C | Conform |
| Sulphated Ash(%) | ≤ 0.1% |
| Loss On Drying (%) | ≤9.0% |
| Residue On Ignition (%) | 1.0% |
| Heavy Metal(Pb ppm) | <10 ppm |
| Ar (ppm) | <3 ppm |
| Lead (ppm) | <2 ppm |
| Hg ((ppm) | <1 ppm |
| Gums, Dextrin Test | No turbidity |
| Resins Test | No turbidity |
| Gallic Acid (%) | ≤4.0% |
| Density G/CM3 | 0.30-0.45 |
| PH (1% in water) | 3-4 |
| Microbiology Total Plate Count: Yeast &Mold: E.Coli: S. Aureus: Salmonella: |
<100 cfu/g <100 cfu/g Negative Negative Negative |
Function:
1.As an astringent, it can precipitate proteins and form insoluble complexes with alkaloids, glycosides, and heavy metals.
2.Mainly used locally for exudative ulcers, burns, stomatitis, tonsillitis, and pharyngitis, as well as for detoxification. Its solution can be used for gastric lavage, and other detoxification drugs have been used instead.
3.Used for colonoscopy to clean the colon and facilitate imaging.
4.Tannic acid can inhibit the activity of snake venom proteins and has a strong detoxification effect on toxins such as cobras.
5.Treatment of intestinal bacterial infections: such as the combination of RG tannic acid (rhubarb or other plants) used as an ADP enzyme inhibitor and other antibacterial drugs.
6.Inhibiting mutations is effective in preventing UV induced skin cancer and skin aging.
Application:
1. Used as a food antioxidant.
2. Used as a viscosity reducer and filter loss reducer for water-based drilling fluids.
3. Used for leather tanning.
4. For skincare products, it can prevent sun damage and brighten the skin.
5. Clinically used to treat local bleeding, it can be used for toothpaste teeth protection and to prevent gum bleeding.
6. Used as a clarifying agent for low alcohol liquor and fruit wine.
7. Used for chromium free passivation of galvanized coatings.
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We accept International Express--Fedex/DHL/UPS, air shipping and sea shipping
1kg/bag (1kg net weight, 1.2kg gross weight, packed in an aluminum foil bag inside and paper carton outside ) or as per your request.
25kg/drum (25kg net weight,28kg gross weight; Packed in a cardboard-drum with two plastic-bags inside. Drum Size: 510mm high, 350mm diameter) ;
Storage: Storein cool & dry place. Do not freeze. Keep away from strong light and heat.
Shelf life: two years when properly stored.
Shipping method: International express by air, by sea, UPS and EMS service.
| Cargo weight |
Packing |
Shipping method |
Lead-time |
| 1-50kg |
Below 5kg Use Foil bag;5-25kg use two layer PP bag,then into master carton or cardboard drum |
International express |
1~3 days after your payment |
| 100-200kg |
25kg/drum,use two layer PP bag,then into cardboard drum |
Air shipping Sea Shipping |
3~5 days after your payment |
| Over 500kg |
25kg/drum,use two layer PP bag,then into cardboard drum |
Sea shipping |
5~10 days after your payment |
1. All of our ingredients meet strict quality and food safety standards, and surpass industry standards for purity and cleanliness.
2. Our food ingredients are certified to applicable organic standards: National Organic Program (NOP) and European Union (EU).
3. We use organic certificate who meet or exceed IFOAM standards and are accepted worldwide.
4. We also can provide ISO, HACCP, KOSHER certification.
Q1: How can I get a sample?
A: Free samples is available. You only pay shipping cost.
Suppliers with verified business licenses
Audited Supplier 
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