DL-Tartaric Acid CAS 133-37-9

 

1. Capacity:

    Yearly 1000 tons, in stock.

2. Properties:

    The DL-Tartaric acid is white to off-white powder.

    Easily hygroscopic.

    It is easily soluble in water and has a solubility of about 139 g/100 mL at 20°C. Soluble in ethanol (alcohol), glycerol.

3. Usages:

    Sour agent, Raising agent, Treatment for heavy metal poisoning.

 

 

 

Chemical Properties:

Melting point	210-212 °C(lit.)
Boiling point	191.59°C (rough estimate)
alpha	[α]D20 -0.2～+0.2° (c=20, H2O)
density	1.788
vapor pressure	<0.1 hPa (20 °C)
refractive index	1.5860 (estimate)
FEMA	3044 | TARTARIC ACID (D-, L-, DL-, MESO-)
Fp	210 °C
storage temp.	Store below +30°C.
solubility	H2O: 0.1 g/mL, clear
form	Liquid
pka	3.03, 4.37(at 25℃)
color	White
PH	3.19(1 mM solution);2.58(10 mM solution);2.03(100 mM solution)

Specification Sheet:

 

Test	Specification
Appearance (Color)	White to Off White
Appearance (Form)	Powder
Infrared Spectrum	Conforms to Structure
Purity (Titration by NAOH)	98.5 - 101.5 %

 

 

• Unique sour taste characteristics

As a sour agent in the food industry, DL-tartaric acid has a stronger sour taste than citric acid and can bring a more sharp sour taste experience to the product, which is a significant feature that distinguishes it from common sour agents such as citric acid.

 

• Good metal complexation ability

In the field of medicine, DL-tartaric acid has excellent metal complexation ability. This complexation ability helps to improve the synthesis and stability of certain drugs, for example, in some drugs to treat heavy metal poisoning, DL-tartaric acid can be complexed with heavy metal ions to promote their excretion from the body.

 

• Balance of stability and reactivity

In terms of chemical properties, DL-tartaric acid shows good stability under certain conditions and has appropriate reactivity at the same time. It has a certain tolerance to heat and acid and alkali, and in some production processes that require high temperature or acid and alkali environments, it can maintain its own chemical properties and is not easy to decompose or deteriorate. The stability of DL-tartaric acid enables it to play a role in high temperature, acid-base environment processes such as food processing and chemical synthesis.

 

• Chirality and optical activity characteristics (in specific applications)

Although DL-tartaric acid is racemic and not optically active, it can be used as a starting material or an auxiliary reagent in some fields involving chiral synthesis or the study of optically active substances. In asymmetric synthesis, DL-tartaric acid can be converted into optically active tartaric acid derivatives through specific reaction and separation methods, which are used to prepare chiral drugs and chiral catalysts, etc., providing an important basic material for the research and production of chiral compounds

 

 

 

 

 

 

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