Tartaric acid Tartronic Acid
Structural formula
| Business number | 01RE |
|---|---|
| Molecular formula | C3H4O5 |
| Molecular weight | 120.06 |
| label |
propanodioic acid, Hydroxymalonic acid, Hydroxypropanedioic acid |
Numbering system
CAS number:80-69-3
MDL number:MFCD00004237
EINECS number:201-301-1
RTECS number:None
BRN number:1209791
PubChem ID:None
Physical property data
1. Characteristics: colorless prismatic crystals, generally containing1Molecular crystal water, in60Loses crystal water at ℃,110Sublimation at ℃
2. Density (g/mL,25/4℃): Unsure
3. Relative vapor density (g/mL,AIR=1): Unsure
4. Melting point (ºC):141 -142℃
5. Boiling point (ºC,Normal pressure): Uncertain
6. Boiling point (ºC,5.2kPa): Unsure
7. Refractive index: Uncertain
8. Flash Point (ºC): Unsure
9. Specific optical rotation (º): Unsure
10. Autoignition point or ignition temperature (ºC): Unsure
11. Vapor pressure (kPa,25ºC): Unsure0
10. OK Number of atomic stereocenters:0
11. No Determine the number of atomic stereocenters:0
12. OK Number of stereocenters of chemical bonds:0
13. No Determine the number of stereocenters of chemical bonds:0
14. Total Number of price key units:1
Properties and stability
Colorless prismatic crystals. Generally included1Molecular crystal water, in60℃ loses crystal water,110℃ sublimation. Melting point141-142℃,156-158℃ (rapid heating). Easily soluble in water and alcohol, anhydrous products can be soluble in ether, and those containing crystal water are insoluble in ether.
Storage method
This product should be sealed in Store in a cool place.
Synthesis method
Use diethyl malonate as raw material, first add bromine under light, and distill under reduced pressure to obtain bromine Propylene glycol diethyl ester. Then add potassium hydroxide solution and heat to reflux4hHydrolyze and neutralize with acetic acidpHfor5. Add barium chloride solution to generate barium hydroxymalonate salt. After acidification, it is distilled under reduced pressure, extracted with ether, and finally refined with acetic acid to obtain the finished product.
Purpose
Used in organic synthesis.
so-fareast-language: ZH-CN; mso-bidi-language: AR-SA”>110℃Sublimation. Melting point141-142℃,156-158℃ (rapid heating). Easily soluble in water and alcohol, anhydrous products can be soluble in ether, and those containing crystal water are insoluble in ether.
Storage method
This product should be sealed in Store in a cool place.
Synthesis method
Use diethyl malonate as raw material, first add bromine under light, and distill under reduced pressure to obtain bromine Propylene glycol diethyl ester. Then add potassium hydroxide solution and heat to reflux4hHydrolyze and neutralize with acetic acidpHfor5. Add barium chloride solution to generate barium hydroxymalonate salt. After acidification, it is distilled under reduced pressure, extracted with ether, and finally refined with acetic acid to obtain the finished product.
Purpose
Used in organic synthesis.
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