Azane (2R,3R)-2,3-dihydroxybutanedioic acid
Ammonium tartrate
CAS: 3164-29-2
Molecular Formula: C4H12N2O6
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Names and Identifiers
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Physico-chemical Properties
| Molecular Formula | C4H12N2O6 |
| Molar Mass | 184.15 |
| Density | 1.601g/mLat 25°C(lit.) |
| Melting Point | decomposes [CRC10] |
| Boling Point | 318.08°C (rough estimate) |
| Specific Rotation(α) | 32.4 º (c=1.84, H2O) |
| Flash Point | 249.7°C |
| Water Solubility | 63 g/L (15 ºC) |
| Solubility | Soluble in water, insoluble in alcohol and acetone. |
| Vapor Presure | 0.001Pa at 20℃ |
| Appearance | White crystalline powder |
| Specific Gravity | 1.601 |
| Color | White semi-transparent |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.052', , 'λ: 280 nm Amax: 0.039'] |
| BRN | 6120352 |
| PH | 6.0-7.5 (25℃, 1M in H2O) |
| Storage Condition | room temp |
| Stability | Stable. Incompatible with strong acids. |
| Sensitive | Hygroscopic |
| Refractive Index | 1.4800 (estimate) |
| MDL | MFCD00013073 |
| Physical and Chemical Properties | Density 1.6 specific optical rotation 32.4 ° (c = 1.84, H2O) water-soluble 63g/L (15°C) |
| Use | For the pharmaceutical industry, etc |
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| RTECS | WW8050000 |
| TSCA | Yes |
| HS Code | 29181300 |
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Upstream Downstream Industry
| Raw Materials | Ammonium hydroxide (2R,3R)-2,3-Dihydroxybernsteinsaeure Ammonia |
| Downstream Products | Salinomycin sodium salt |
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Nature
Open Data Verified Data
colorless crystals. dl. 061. Soluble in water, the solution is acidic, in 20 ° C water solubility of 38. 65%, in 60 ° C water for 46. 52%; Very slightly soluble in alcohol. Thermal decomposition. Open air will gradually evolve ammonia and acidic reaction. Flammable, but not easy to ignite, fire can produce toxic gases.
Last Update：2024-01-02 23:10:35
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Preparation Method
Open Data Verified Data
tartaric acid was dissolved in water and ammonium carbonate was added slowly until the solution was slightly alkaline to phenolphthalein. After boiling, it is evaporated on a water bath, and when a crystalline film appears, it is rapidly filtered, and the filtrate is cooled, filtered and dried to obtain a finished product. Alternatively, tartaric acid and ammonia are reacted in ethanol to form an amorphous powdery precipitate. The product was obtained by filtration, washing with ethanol and ether, and drying.
Last Update：2022-01-01 09:25:48
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Introduction
Easy to weatherize, lose ammonia in the air. Alkaline. 150 degrees sublimate and decompose. General commodities are often made into 25% solutions.
Last Update：2022-10-16 17:24:32
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Use
Open Data Verified Data
The analysis reagent is a masking agent for detecting lead, nickel, phosphorus, metals and the like.
Last Update：2022-01-01 09:25:48
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Safety
Open Data Verified Data
Contact can irritate the eyes and skin; High concentration exposure can irritate the nose, throat and lungs. Stored in a closed container, placed in a cool and ventilated place.
Last Update：2022-01-01 09:25:49
Azane (2R,3R)-2,3-dihydroxybutanedioic acid - Reference Information
| pH indicator color change ph range | 5-7 |
| LogP | -5.6 at 20℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | ammonium tartrate is an organic ammonium compound, which can be used as a masking agent for the determination of lead, nickel, phosphorus and niobium, as an analytical reagent and an organic synthesis intermediate. |
| solubility in water (g/100ml) | dissolution grams per 100ml of water at different temperatures (℃): 45g/0 ℃;55g/10 ℃;63g/20 ℃;70.5g/30 ℃;76.5g/40 ℃ 86.9g/60 ℃ |
| use | used in pharmaceutical industry, etc. masking agent for determination of lead, nickel, phosphorus, niobium, etc. Used as analytical reagents and organic synthesis intermediates. |
| production method | (1) tartaric acid is dissolved in water by the action of tartaric acid and ammonium carbonate, and ammonium carbonate is slowly added until the solution is weakly alkaline to phenolphthalein. Boil for 20-30min. Evaporate in a water bath, filter quickly when a crystalline film appears, cool the filtrate, filter, and dry the crystals at 40°C to obtain the finished product. The yield is 80%. (2) The reaction of tartaric acid and ammonia in ethanol will pass ammonia into the ethanol solution of tartaric acid to generate amorphous powder precipitate. Filter, wash with ethanol and ether, and dry to obtain the finished product. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:55:45
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Tel: +86-17551318830
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Tel: 17505222756
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Wechat: 17505222756
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Raw Materials for Azane (2R,3R)-2,3-dihydroxybutanedioic acid
Downstream Products for Azane (2R,3R)-2,3-dihydroxybutanedioic acid