Formic acid CAS 64-18-6 99% Acide formique for leather industry

Formic acid is the simplest carboxylic acid, because it was first obtained by distilling termites, so it is also called formic acid. Formic acid is found in the secretions of ants, bees and caterpillars. The skin after a bee sting is red and itchy, which is due to the stimulating effect of formic acid released from the bee needle. Formic acid is also found in nettles, scorpion grass, pine needles and some fruits (such as green grapes), as well as in human muscles, blood and excreta.

Leather industry applications:

(1) Formic acid is the most acidic of monocarboxylic acids, which has a looser effect on collagen fibers but is milder and more uniform than inorganic acids. The acid leaching used for fur processing has the characteristics of little damage to hair, soft action, fine and uniform fiber dispersion, soft and plump finished products.
(2) In chrome tanning, formic acid can play a masking effect, and its masking effect is stronger than acetic acid.
(3) Formic acid is a strong reducing agent and easy to decompose by oxidation.
(4) Formic acid has the effect of promoting dyeing and fixing color on acid dyes, and can make the color of leather rich and brilliant.
(5) Fur soaking additives, which can reduce the pH value of the soaking solution (5.0 ~ 5.5), promote fur water filling and expansion, and inhibit bacterial growth. Organic acid auxiliaries such as formic acid and acetic acid are also commonly used for fur with loose hair or that is not easily soaked in water.
(6) can be used as an acid leaching material alone, or mixed with sulfuric acid for acid leaching.
(7) The acid leaching material in the rapid plant tanning process can accelerate the penetration of the extract.
(8) Preparation of sodium formate masking agent. The optimum ratio of sodium formate to chrome tanning is 1mol sodium formate to 1mol basic chromium sulfate.
(9) One of the neutralizing agents. In the production of furniture leather, 1% ~ 2% sodium formate is added during neutralization, which is conducive to deeper neutralization and smooth grain surface.
(10) Adjust the pH value of the dyeing bath and fix the color.
(11) Add 1 ~ 2g/L formic acid in the last brush dyeing of leather.
(12) Reduce the hardness of water: Adding 3.2mL50% formic acid to 100kg of water (relative density 1.121) can reduce the hardness by one degree.
(13) The supplement in the production of recycled leather has the effect of promoting coagulation, and the dosage is less than 5% (concentration).
(14) The bleaching effect of white leather billet is better than that of Habo and potassium permanganate, but inferior to oxalic acid.

The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods.

Tianjin Shengtai Chemical Co., Ltd.
Suntechemical is a professional supplier of fine chemicals and one of northern China's largest suppliers. We have over 25 years of experience in the chemical field. The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods. Now the United States, the European Union, Japan, Canada, and other countries have more than 100 customers to establish stable trade relations.

Our products are widely used in medicine, pesticides, food, oilfield and water treatment, daily chemicals and cosmetics, surfactants, inks, rubber, cement additives, coatings, polyurethanes, adhesives, solvents, additives, leather, textile, printing and dyeing, building materials, metal processing and other fine chemical-related industries.

Q1: May I get some samples from your side?
Re: Yes, of course. We’d like to provide a 10-1000 g free sample to you, which depends on the product you need. For freight, your side needs to bear, but we will refund you after you place a bulk order.

Q2: What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it also is flexible and depends on the product.

Q3: What kinds of payment are available for you?
Re: We recommend you pay by T/T or L/C, and you can also choose to pay by PayPal, or MoneyGram if the value is less than USD 3000. Besides, sometimes we also accept Bitcoin.

Q4: How about lead time?
Re: For small quantities, the goods will be sent to you within 1-3 working days after payment. For larger quantities, the goods will be sent to you within 3-7 working days after payment.

Q5: How long I can get my goods after payment?
Re: For small quantities, we will deliver by courier(FedEx, TNT, DHL, etc) and it usually will take 3-7 days to your side. If you want to use a special line or air shipment, we can also provide and it will cost about 1-3 weeks. For large quantities, shipment by sea will be better. For transport time, it takes 3-40 days, which depends on your location.

Q6: What’s your after-sales service?
Re: We will inform you of the progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, etc.