Ammonium L-tartrate CAS#3164-29-2 Product Description
Ammonium L-tartrate is characterized by its good water solubility and acidic behavior in aqueous solution. At 15°C, its reported solubility in water is approximately 63 g/L, whereas its solubility in ethanol is relatively low. These properties make its solvent compatibility an important consideration in laboratory preparation and chemical processing. Under elevated temperatures, the compound may gradually decompose and release ammonia-containing products. Prolonged exposure to air may also contribute to gradual decomposition under certain environmental conditions. In addition, ammonium L-tartrate can react with strong acids, depending on the reaction conditions, making its chemical compatibility an important factor in storage, handling, and use in laboratory or industrial processes.

Ammonium L-tartrate CAS#3164-29-2 Chemical Properties
| Melting point | Decomposes [CRC10] |
| Boiling point | 318.08°C (rough estimate) |
| Alpha | 32.4 º (c=1.84, H2O) |
| Density | 1.601 g/mL at 25 °C(lit.) |
| Vapor pressure | 0.001Pa at 20℃ |
| Refractive index | 1.4800 (estimate) |
| Storage temp. | Room temp |
| Solubility | H2O: 1 M at 20 °C, clear, colorless |
| Form | crystalline |
| Color | White semi-transparent |
| Specific Gravity | 1.601 |
| PH Range | 5 - 7 |
| PH | 6.0-7.5 (25℃, 1M in H2O) |
| Water Solubility | 63 g/L (15 ºC) |
| Sensitive | Hygroscopic |
| λmax | λ: 260 nm Amax: 0.052 λ: 280 nm Amax: 0.039 |
| BRN | 6120352 |
| Stability | Stable. Incompatible with strong acids. |
| LogP | -5.6 at 20℃ |
| CAS DataBase Reference | 3164-29-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Ammonium tartrate(3164-29-2) |
| EPA Substance Registry System | Diammonium tartrate (3164-29-2) |
Ammonium L-tartrate CAS#3164-29-2 Safety Information
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-36/37/38 |
| Safety Statements | 24/25-36-26 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| RTECS | WW8050000 |
| TSCA | Yes |
| HS Code | 29181300 |
| Hazardous Substances Data | 3164-29-2(Hazardous Substances Data) |
Ammonium L-tartrate CAS#3164-29-2 Product Application
Ammonium L-(+)-tartrate is used in a variety of industrial, pharmaceutical, and scientific applications, including textile processing and pharmaceutical research. It also plays a role in biochemical studies involving protein structure analysis, proteomics, and molecular interactions. In laboratory settings, this compound can be utilized as a chemical reagent and a nitrogen source in selected biological systems and cell culture media, depending on the specific formulation requirements. Its potential applications also extend to crystallization experiments, where it may support crystal growth optimization and structural characterization. In protein crystallography research, ammonium L-(+)-tartrate has been used in studies involving the Smad1 MH1 domain complexed with a palindromic SBE DNA element, including crystal optimization and preliminary diffraction data analysis. These diverse uses make it a relevant chemical for specialized research, biochemical investigations, and selected industrial processes.
