Zhishang Chemical

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Zhishang Chemical

L-Tartaric Acid CAS 87-69-4

Molecular Formula: C4H6O6

Formula Weight: 150.09

ZSpharmac: L-Tartaric Acid Supplement

Product Name: L-Tartaric Acid
CAS No: 87-69-4
Purity: 99%

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Basic Info

Product Name:L-Tartaric Acid
Other Names:l+ Tartaric Acid
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White or Colorless Solid
EINECS No.:201-766-0
Storage:Store at +5°C to +30°C.
Provide:L-Tartaric Acid MSDS;
L-Tartaric Acid COA

What is L-Tartaric Acid?

L-Tartaric Acid (L-tartaric acid), the item is colorless transparent crystal or white penalty to crude crystalline powder with a sour taste. L-Tartaric Acid (L-tartaric acid) is extensively utilized as a sour representative in beverages as well as other foods, used in red wine, soft drinks, sweet, bread, and also particular gelatinlike desserts. Using its optical task, it can be made use of as a chemical dealing with agent for the resolution of DL-aminobutanol, an intermediate of anti-tuberculosis medicines; it can additionally be utilized as a chiral basic material for the synthesis of tartaric acid derivatives; its acidity can be utilized as a polyester material resin Catalyst for ending up, PH regulator for oryzanol production; Using its complexing homes, it is made use of as complexing agent, masking representative, chelating representative, and also dyeing resist in electroplating, desulfurization, pickling, chemical analysis, and also medical inspection; Its reducibility is made use of as a lowering agent for chemical mirror making. Photographic programmer. It can additionally complicated with a selection of metal ions, as well as can be used as a cleaning agent and also polishing representative for steel surface areas.

L-Tartaric Acid Property

Melting point 

170-172 °C(lit.)


12 º (c=20, H2O)

Boiling point 

191.59°C (rough estimate)



vapor density 

5.18 (vs air)

vapor pressure 

<5 Pa (20 °C)

refractive index 

12.5 ° (C=5, H2O)


210 °C

storage temp. 

Store at +5°C to +30°C.


H2O: soluble1M at 20°C, clear, colorless


2.98, 4.34(at 25℃)




White or colorless


3.18(1 mM solution);2.55(10 mM solution);2.01(100 mM solution);

optical activity

[α]20/D +13.5±0.5°, c = 10% in H2O

Water Solubility 

1390 g/L (20 ºC)


L-Tartaric Acid Uses

  1. L-Tartaric Acid is an antioxidant contributed to food, which can make food have a sour taste. The largest use of tartaric acid is as a drink ingredient. It is likewise a basic material for the pharmaceutical market. In the mirror sector, tartaric acid is a vital supporting and minimizing agent, which can regulate the development speed of silver mirror as well as acquire a very uniform finishing. Used as biochemical reagent, covering up agent and also beer frothing agent, likewise used in tanning sector.Mostly utilized as sour representative, splitting agent and also pharmaceutical raw materials.
  2. L-Tartaric Acid is extensively made use of as a sour agent in beverages as well as various other foods, utilized in a glass of wine, soft drinks, sweet, bread, specific gelatinous desserts. Utilizing its complexing residential or commercial properties, it is used as complexing agent, concealing agent, chelating agent, and also coloring withstand in electroplating, desulfurization, pickling, chemical analysis, and also clinical examination; Its reducibility is used as a decreasing agent for chemical mirror making. Photo developer. It can additionally complicated with a selection of steel ions, as well as can be made use of as a cleaning agent and also brightening representative for metal surfaces.
  3. L-Tartaric Acid is extensively made use of as pharmaceutical intermediate, solving agent; steel ion masking agent; anti-staining agent; chiral foundation for natural products, as well as likewise forms Diels-Alder driver with substance TiCl2(O-i-Pr)2.

L-Tartaric Acid Production Method

1. It is acquired by transforming the tartar created in the production of a glass of wine into calcium salt, and afterwards disintegrating it with a somewhat too much amount of dilute acid. Or use maleic acid and also hydrogen peroxide as basic materials, convert into epoxysuccinic acid at a particular temperature, and afterwards hydrolyze to acquire DL-tartaric acid. L(+) tartaric acid can additionally be obtained from epoxysuccinic acid acquired by chemical synthesis via the activity of the ring-opening enzyme had in Nocardia succinates. 2. Include pure water to commercial tartaric acid, heat it with heavy steam as well as stir to liquify it. Include an ideal quantity of turned on carbon, mix well, allow it stand, filter, when the filtrate is heated up as well as concentrated to the surface conjunctiva, suction purification while warm, and also the filtrate is cooled and crystallized. Simply dip the spoon. If the decolorization temperature level of triggered carbon is controlled at 80 ° C, after filtration, it is concentrated under decreased stress at 80 ° C, cooled and crystallized, as well as the acquired crystals are recrystallized and improved in a non-ferrous container and also dried at reduced temperature to acquire the L-Tartaric Acid finished item.

Recovery and Recycling Method of L-Tartaric Acid

(1) acidification precipitation: get the waste water 1000g (7wt% L-tartaric acid) containing diammonium tartrate that the racemic p-methylsulfonyl phenylserine ethyl ester splitting process produces, be 45-50 ℃ at reaction temperature, with concentrated The hydrochloric acid was acidified to pH 3, and the reaction time was 0.5h. The reaction solution formed a precipitate of ammonium hydrogen tartrate, which was filtered. The obtained precipitate was dried and dehydrated to obtain 66.5 g of ammonium hydrogen tartrate (recovery rate 85.3%). Ammonium hydrogen L-Tartaric Acid is an off-white solid with a purity greater than 99% and an optical purity of 100% according to HPLC.

(2) Acidification and desalination: take 33.4 g of the product ammonium hydrogen tartrate obtained in step (1), add 135 g of methanol, add 10 g of concentrated sulfuric acid, and carry out acidification reaction. The reaction temperature is 42-45 ℃, and the reaction time is 2h. After the reaction, the inorganic salt was removed by filtration, and the obtained filtrate was the methanol solution of L-Tartaric Acid.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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