| Customization: | Available |
|---|---|
| Type: | D-Tartaric Acid |
| Appearance: | Powder |
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| Name | D-Tartaric acid |
| Synonyms | (2S,3S)-(-)-Tartaric acid; D(-)-Threaric acid; D(-)-Dihydroxysuccinic acid |
| Molecular Structure | |
| Molecular Formula | C4H6O6 |
| Molecular Weight | 150.09 |
| CAS Registry Number | 147-71-7 |
| EC Number | 205-695-6 |
| SMILES | [C@H]([C@@H](C(=O)O)O)(C(=O)O)O |
| Density | 1.76 g/mL |
|---|---|
| Melting point | 166-170 ºC |
| Refractive index | 12.5 |
| Flash point | 210 ºC |
| alpha | -12.1 º (c=20, H2O) |
| Water solubility | 1394 g/L (20 ºC) |
The use and function of D - (-) tartaric acid
1, Food industry
a. Sour taste regulator: Provides refreshing sour taste for beverages, juices, candies, etc., and regulates acid-base balance to improve flavor. Reacts with sodium bicarbonate to produce carbon dioxide, which is used for leavening baked goods such as bread and cakes.
b. Antioxidant and extended shelf life: Enhance the antioxidant effect and prevent the oxidation and deterioration of fats and vitamins in food.
2, Pharmaceutical and Chemical Industry
a. Drug synthesis and formulation: As an intermediate for chiral drugs (cardiovascular drugs, antibiotics, etc.), it enhances drug efficacy and safety. Adjust the pH value of drugs and assist in the preparation of sustained-release formulations to control drug release.
b. Chiral separating agent: By forming diastereomer salts, different chiral isomers of drug molecules are separated.
3, Metal processing and electroplating
a. Complexing agents and electroplating processes: form stable complexes with metal ions (such as copper and nickel) to improve the uniformity and glossiness of the electroplating layer. Used for cyanide free electroplating process to reduce environmental pollution.
4, Other fields
a. Tanning and Textile: As a tanning aid, it improves the softness and water resistance of leather.
b. Cosmetics and cleaning agents: Adjust the pH value of cosmetics to reduce skin irritation; As a metal surface cleaning agent to remove oxides.
c. Photographic materials and development: Participate in the preparation of developing and fixing solutions, affecting the imaging quality of photosensitive materials.
Certificate of Analysis
| Name of product | D(-)-tartaric acid | ||||
| Packing size | 25KG | Mfg date | 2025/3/10 | ||
| Lot no. | 250310 | Analysis no. | 2025/3/11 | ||
| Quantity | 5000kg | Retest date | 2027/3/09 | ||
| Test item | Specification | Result | |||
| Description | White crystals or white powder | White crystals or white powder |
|||
| SpecificRotation[alpha/20/D] | -12~-12.8 | -12.3 | |||
| Sulphate(SO4) | Not more than 0.05% | 0.035% | |||
| Heavy metals(Pb) | Not more than 0.001% | 0.00060% | |||
| Residue on Ignitiom | Not more than 0.1% | 0.035% | |||
| Loss on drying | Not more than 0.5% | 0.22% | |||
| Assay | Not less than 99.5% | 99.87% | |||
| Optical purity(ee value) | Not less than 99.7% | 99.8% | |||
| Clarity test | In accordance with the standard of experiment |
Pass | |||
FAQ
Question 1: Can I get samples?
Answer: Yes,you can get free samples of our most products,
while the courier cost will be borne by the buyers.
Question 2: What's your MOQ?
Answer: For a express delivery order,the MOQ is usually 100 g~1 kg;
for an air transport order or sea delivery order ,the MOQ is usually 25 kgs.
Question 3: What's your delivery time?
Answer:
Orders shipped by express delivery,the delivery time is usually 5~7 working days;
Orders shipped by air transport,usually around 7~10 working days;
Orders shipped by sea , usually around 2~3 working weeks.
Question 4: What are the different payment methods?
Answer: We usually accept T/T, L/C and Western Union.
Question 5: How do you treat quality complaint?
We take quality very seriously, it is one of the founding principles of our business.
If the quality problem actually exists, we will replace with qualified goods or refund the money.
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