Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
D-Tartaric acid
1. Basic Product Information
Product Name: D-Tartaric acid
CAS Number: 147-71-7
Molecular Formula: C4H6O6
Molecular Weight: 150.09
Synonyms: D-(+)-Tartaric acid, (2R,3R)-2,3-Dihydroxybutanedioic acid
Product Category: Chiral resolution reagent, food acidulant, pharmaceutical intermediate, cosmetic additive, industrial metal cleaning agent
2. Physical and Chemical Properties
Physical Indicators
- Appearance: Colorless transparent crystal or white crystalline powder
- Odor: Odorless, with strong sour taste
- Solubility: Freely soluble in water; soluble in methanol, ethanol; slightly soluble in acetone; insoluble in chloroform, ether and hydrocarbon solvents
- Melting Point: 168–170 °C
- Specific Rotation [α]D2?: +12° ~ +14° (c=20, H?O)
- Density (20 °C): 1.76 g/cm3
- Hygroscopicity: Slightly hygroscopic under high humidity conditions
- Aqueous Stability: Stable in neutral and acidic aqueous solutions; forms tartrate salts with metal ions, no obvious hydrolysis at room temperature
Chemical Characteristics
- Molecular Structure: Chiral dihydroxy dicarboxylic acid with two hydroxyl groups and two carboxyl groups on butane skeleton
- Core Functional Mechanism: Excellent chiral resolving agent for separating racemic amines, alkaloids and pharmaceutical chiral intermediates; serves as acidifier, chelating agent and pH regulator
- Photostability: Stable under normal sealed storage without light-induced discoloration
- Thermal Stability: Stable below 150 °C; above melting point, gradual dehydration and decarboxylation occur to generate toxic pyruvic acid derivatives
- Chemical Compatibility: Compatible with most aqueous systems, alcohols and weak polar solvents; incompatible with strong alkalis, heavy metal salts and strong oxidants
3. Main Application Fields
- Core Application: Chiral Resolution Reagent
Primary chiral splitting agent for separating racemic amine drugs, beta-lactam intermediates and chiral pesticide skeletons in pharmaceutical fine chemical industry - Food & Beverage Additive
Natural sourness regulator for wine, soft drinks, candies and baked goods; improves flavor and stabilizes color - Pharmaceutical Excipient & Intermediate
Raw material for tartrate salt APIs, pH adjuster for oral preparations and injection solutions - Industrial Metal Surface Treatment
Chelating cleaning agent for metal polishing, boiler descaling and electroplating additive - Cosmetic Raw Material
Exfoliating alpha-hydroxy acid (AHA) for skin care creams, improves skin keratin metabolism
4. Platform Category & Product Group Guidance
1) Domestic B2B Platform Category
Recommended Path: Organic Intermediates / Food Additives
Reason: Multi-purpose chiral organic acid widely used in chiral synthesis, food, pharmacy and daily chemical industries
2) English Product Group Dropdown Options
Recommended Selection: Basic Organic Chemicals
Do NOT select Pharmaceutical Chemicals exclusively; it is universal food and industrial chiral raw material
3. Standard Foreign Trade Packaging Specification
1kg sealed PE bag for lab chiral resolution tests; 25kg double PE-lined kraft bag/fiber drum for bulk factory orders
5. Quality Specification Table
| Test Item | Standard Requirement |
| CAS Number | 147-71-7 |
| Molecular Formula | C4H6O6 |
| Appearance | Uniform white crystal powder without colored impurities |
| Titration Assay | Food Grade ≥99.5%, Chiral Reagent Grade ≥99.8% |
| Specific Rotation | +12° ~ +14° |
| Water Content (KF Method) | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Oxalic Acid Impurity | ≤0.05% |
| Standard Storage Package | Sealed moisture-proof PE lined bag, dry warehouse storage |
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