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Product details:
CAS No.: 87-69-4
Chemical Name: L(+)-Tartaric acid
Molecular Formula: C4H6O6
Molecular Weight: 150.09
EINECS: 201-766-0
| Melting point | 170-172 °C(lit.) |
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| alpha | 12 º (c=20, H2O) |
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| Boiling point | 191.59°C (rough estimate) |
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| Density | 1.76 |
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| vapor density | 5.18 (vs air) |
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| vapor pressure | <5 Pa (20 °C) |
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| refractive index | 12.5 ° (C=5, H2O) |
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| FEMA | 3044 | TARTARIC ACID (D-, L-, DL-, MESO-) |
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| Flash point | 210 °C |
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| storage temp. | Store at +5°C to +30°C. |
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| solubility | H2O: soluble1M at 20°C, clear, colorless |
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| pka | 2.98, 4.34(at 25ºC) |
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| form | Solid |
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| color | White or colorless |
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| PH | 3.18(1 mM solution);2.55(10 mM solution);2.01(100 mM solution); |
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| Odor | at 100.00 %. odorless |
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| Odor Type | odorless |
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| optical activity | [α]20/D +13.5±0.5°, c = 10% in H2O |
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| Water Solubility | 1390 g/L (20 ºC) |
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| Merck | 14,9070 |
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| JECFA Number | 621 |
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| BRN | 1725147 |
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| Stability | Stable. Incompatible with oxidizing agents, bases, reducing agents. Combustible. |
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| InChIKey | FEWJPZIEWOKRBE-JCYAYHJZSA-N |
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| LogP | -1.43 |
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Definition
L-tartaric acid is a tetraric acid that is butanedioic acid substituted by hydroxy groups at positions 2 and 3. It is a conjugate acid of a L-tartrate(1-). It is an enantiomer of a D-tartaric acid.
Uses
In the soft drink industry, confectionery products, bakery products, gelatin desserts, as an acidulant. In photography, tanning, ceramics, manufacture of tartrates. The common commercial esters are the diethyl and dibutyl derivatives used for lacquers and in textile printing. Pharmaceutic aid (buffering agent).
L-(+)-Tartaric acid is widely utilized in pharmaceutical industries. It is used in soft drinks, confectionaries, food products, gelatin desserts and as a buffering agent. It forms a compound, TiCl2(O-i-Pr)2 with Diels-Alder catalyst and acta as a chelate agent in metal industries. Owing to its efficient chelating property towards metal ions, it is used in farming and metal industries for complexing micronutrients and for cleaning metal surfaces, respectively.
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