Tannic acid, also known as tannin or gallotannic acid, is a naturally occurring compound found in various plant tissues. It is a polyphenol and belongs to the group of compounds called tannins. Extracted from plants such as oak bark, gallnuts, and certain fruits, tannic acid is characterized by its astringent taste and protein-binding ability.
Tannic acid has diverse applications across industries. It possesses astringent properties suitable for skincare products, contributes to the tanning process in the leather industry, and forms colored complexes used in dyeing fabrics and producing inks. In traditional medicine, it is valued for its antimicrobial and antioxidant properties. Tannic acid is also significant in brewing and winemaking, enhancing the characteristics of red wines. Furthermore, it finds use as a chemical reagent in reactions within fields like photography, textiles, and metal processing.
1. Astringency: Tannic acid exhibits a strong astringent taste and has the ability to cause contraction and tightening of tissues..
2. Protein binding: Tannic acid has a high affinity for proteins and can form complexes with them, resulting in precipitation or coagulation.
3. Complexation with metal ions: Tannic acid can form stable complexes with metal ions, leading to its use in various applications involving metal chelation.
4. Antioxidant properties: Tannic acid exhibits antioxidant activity, which helps in protecting against oxidative damage caused by free radicals.
5. Biodegradability: Tannic acid is a natural compound derived from plant sources, and it is biodegradable, making it environmentally friendly.
6. pH-dependent solubility: Tannic acid's solubility can vary with pH, being more soluble in alkaline solutions and less soluble in acidic conditions.
7. Stability: Tannic acid is relatively stable under normal conditions and can withstand moderate heat and pH variations.
8. Compatibility with other ingredients: Tannic acid can interact and interact synergistically with other compounds, leading to enhanced effects in certain applications.
1. Leather tanning
Tannic acid is widely used in the tanning industry as a key component in the process of converting animal hides into leather. It forms stable complexes with proteins, creating a durable and flexible material.
2. Dyeing and ink production
Tannic acid is used as a mordant in dyeing processes. It forms complexes with metal ions and helps fix dyes to fabrics, resulting in enhanced color fastness. It is also employed in the production of inks, where it aids in the formation of stable pigments.
3. Cosmetics and skincare
Due to its astringent properties, tannic acid is used in cosmetic formulations and skincare products. It can help in toning and firming the skin, reducing inflammation, and minimizing the appearance of pores.
4. Pharmaceuticals
Tannic acid has been used in traditional medicine for its antimicrobial and antioxidant properties. It is believed to have potential applications in wound healing, as well as in the treatment of burns, sore throat, and diarrhea.
5. Brewing and winemaking
Tannic acid naturally occurs in grapes and contributes to the color, flavor, and mouthfeel of wines, particularly red wines. It helps in stabilizing the wine and can also act as a natural preservative.
6. Food and beverages
Tannic acid is used in the food and beverage industry as a flavoring agent, particularly in products like chocolates, chewing gum, and certain beverages. It adds a characteristic bitter taste and can also help with clarifying and stabilizing certain beverages.
7. Chemical applications
Tannic acid finds applications in various chemical processes. It can be used as a reducing agent, metal chelator, and antioxidant in industries such as photography, textile dyeing, and metal processing.
|
Specification |
Industrial grade |
Pharmaceutical grade |
Food grade |
|
Appearance |
Yellow powder |
Light yellow powder |
Light yellow powder |
|
Content |
≥81% |
≥90% |
93%-98% |
|
Loss on drying |
≤9% |
≤9% |
≤9% |
|
Residue on ignition |
-- |
≤1% |
≤1% |
|
Heavy metal |
-- |
≤30ppm |
≤20ppm |
|
Other Index |
See COA |
See COA |
See COA |
Storage: Avoid moisture and light, sealed tightly, no contact with metal.
Shelf life: Two years.
Package: 25kg/bag or as your special request.
Beijing Entrepreneur Science & Trading Co., Ltd. was established in the year 2001. We are focused on import and export business of high-quality specialty chemicals. Since its establishment, relying on diligent efforts, spirit of enterprising and professional services, the company has established extensive cooperation with world-famous chemical manufacturers and gained a good reputation in China chemical industry.
We have stable distribution cooperation with world leading suppliers from America, Europe, Japan and Taiwan. We are distributors of Ames Advantage Material, Novamet, Lanxess, Momentive, Potters, Rhodia, Roquette, Oerlikon Metco, Inovyn, KJ Chemical, Tokuyama, Mitsubishi Chemical, Chang Chun Group, etc.
Our products selling in China include Conductive Powder, Thermal Conductive Powder, Microwave Absorbing Powder, Acrylamide Functional Monomer and Special UV Monomer, Special Epoxy Resin, Mercaptan Curing Agent, Silane, Fumed Silica and Precipitated Silica, PVC Paste Resin, PVA, Carbon Black, Modified Starch, Photocatalyst, Formaldehyde Capture agent, Root Blocking Agent, Platinum Catalyst, Vinyl Silicone Oil, Surfactant, etc.
In 2014, the company entered the chemical export business. Based on our understanding of China chemical market, we select most qualified suppliers. We are able to source raw materials directly from factories. Most of our partners are the largest factory in China with over 20 years history. They have huge annual outputs, and hold ISO9001, ISO14001, GMP, KOSHER, HALAL, FDA, GSP, etc. certificates.
Our export products include Conductive Powder, Thermal Conductive Powder, Plant Extract, Inorganic Powder, Plasticizer, PVC Paste Resin, Silane, Flavors and Fragrances, Salen Catalysts and Ligands, Organic Intermediates, Pharmaceutical Intermediates.
We are proud to serve industries such as coating, ink, sealant, industrial, cosmetics, conductive powder, thermal conductive powder, pharmaceutical, flavor & fragrance, aroma, as well as many others.
We will support our customers in a continuous way in the following:
1. Timely feedback to inquiry within 24 hours
2. Pre-sales consultancy
3. Supply samples
4. Competitive price
5. Good packaging
6. Timely delivery
7. Small order is available
8. Good after sales services
9. Provide TDS, COA, commercial invoice, packing list and certificate of origin. Special requirements also could be discussed and met.
Can I request samples?
Yes, absolutely! We offer free samples of specified quantities. You only need to cover the freight charges.
Which documents are provided?
We provide essential documents such as Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and more upon request.
What is your Minimum Order Quantity (MOQ)?
Typically, our MOQ is one standard package. However, we understand the importance of testing before committing to a mass order, so we offer free samples for your evaluation.
How do you ensure the quality of your products?
We prioritize quality assurance through several measures:
1. Expert Staff: Our team comprises professionals with extensive experience in chemical products or related fields. They undergo comprehensive training before providing any quotations.
2. Sample Availability: We offer free samples or pre-shipment samples for new collaborations, ensuring that our commercial products match the specifications provided to customers.
3. Third-Party Inspection: Upon request, we can arrange Third-Party Inspections, such as SGS, to further validate the quality of our products before shipping.
How do I make payments?
Once you receive the Proforma Invoice (PI) along with our product specifications, you can proceed with payment. We accept various payment methods including Telegraphic Transfer (T/T), Letter of Credit (LC), and more.
What is your after-sales service like?
At Beijing Entrepreneur Science & Trading Co., Ltd., we prioritize fostering long-term relationships with all our customers. For every order, we ensure transparency and commitment by signing a legally binding sales contract. Should you have any doubts or concerns regarding our products or services, please do not hesitate to contact us. Your satisfaction and trust are our top priorities.
Can I use my own label or packaging?
Absolutely. If required, we can use labels or packaging according to your specifications and preferences. Your branding and packaging needs are important to us, and we'll ensure they are met to your satisfaction.
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