133-37-9 Usage
Uses
Used in Food Industry:
DL-Tartaric acid is used as a synergist for antioxidants, emulsifier, sequestrant, and flavoring agent. It is mixed with sodium bicarbonate and used as a leavening agent in food preparation.
Used in Pharmaceutical Industry:
DL-Tartaric acid is utilized in the preparation of tartar emetic, which is used in cough syrup as an expectorant. It is also used in the production of effervescent salts, in combination with citric acid, to improve the taste of oral medications.
Used in Chemical Industry:
DL-Tartaric acid is used as a chemical intermediate and a sequestrant. It is also used in tanning, effervescent beverages, baking powder, ceramics, photography, textile processing, mirror silvering, and metal coloring.
Used in Metal and Farming Industries:
DL-Tartaric acid acts as a chelating agent in metal and farming industries.
Used in Ink, Toner, and Colorant Products:
DL-Tartaric acid is utilized in pigments, processing aids, ink, toner, and colorant products.
Used as Lubricant and Grease:
DL-Tartaric acid is used as a lubricant and grease.
Used in Synthesis:
DL-Tartaric acid can be used in the Debus–Radziszewski reaction as a weak acid for the synthesis of imidazolium ionic liquid. It is also used as an additive in electrochemical deposition technique for the synthesis of bismuth thin films to be used as X-ray absorbers. Furthermore, it serves as a complexing agent for the synthesis of nano-crystalline indium tin oxide (ITO) powder and as a dopant for the synthesis of polyaniline nanofibers and nanotubes by oxidation polymerization.
FUNCTIONAL USES
Synergist for antioxidants, acid, emulsifier, sequestrant, flavouring agent
Solubility
Freely soluble in water; sparingly soluble in ethanol
Melting range
200 - 206o with decomposition when heated rapidly in a sealed capillarytube
substances
N potassium permanganate while keeping the solution at 20o . The colour of the solution does not disappear within 3 min.
METHOD OF ASSAY
Weigh accurately about 2 g of the dried sample, dissolve it in 40 ml of water, add phenolphthalein TS, and titrate with 1 N sodium hydroxide. Each ml of 1 N sodium hydroxide is equivalent to 75.04 mg of C4H6O6.
Preparation
The tartrates used in commerce are obtained as a by-product of wine manufacture and have the L(+) configuration. Produced from argols or wine lees, which are formed in the manufacture of wine by extracting the potassium acid tartrate, transforming this into the calcium salt and then acidifying with dilute sulfuric acid; also by oxidation of d-glucose with nitric acid. The dl-tartaric acid is obtained by boiling the d-tartaric acid with an aqueous solution of NaOH or by oxidation of fumaric acid. The l- and the meso-tartaric acid are also known, but are less important.
Check Digit Verification of cas no
The CAS Registry Mumber 133-37-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133-37:
(5*1)+(4*3)+(3*3)+(2*3)+(1*7)=39
39 % 10 = 9
So 133-37-9 is a valid CAS Registry Number.
InChI:InChI=1/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)/t1-,2-/m1/s1
133-37-9Relevant articles and documents
Supramolecular metathesis: Co-former exchange in co-crystals of pyrazine with (R,R)-, (S,S)-, (R,S)- and (S,S/R,R)-tartaric acid
Braga, Dario,Grepioni, Fabrizia,Lampronti, Giulio I.
, p. 3122 - 3124 (2011)
Co-crystals of dextro-(R,R), levo-(S,S), meso-(R,S) and racemic (R,R-S,S)-tartaric acid with pyrazine were obtained by manual kneading and slurry experiments; subsequent reactions in the solid state between these co-crystals and the various forms of tartaric acid in the solid state and via slurry show that co-former exchange takes place according to the sequence of stability [(R,S)-ta]2·py > (S,S/R,R)-ta·py > (R,R)-ta·py or (S,S)-ta·py.
Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation
Karimi Ahmadabad, Fatemeh,Pourayoubi, Mehrdad,Bakhshi, Hadi
, p. 27147 - 27156 (2019)
The nano-composites Fe3O4SiO2(-O3Si[(CH2)3NH])P(O)(NH-R(+)CH(CH3)(C6H5))2 (Fe3O4SiO2PTA(+)) and Fe3O4SiO2(-O3Si[(CH2)3NH])P(O)(NH-S(-)CH(CH3)(C6H5))2 (Fe3O4SiO2PTA(-)) were prepared and used for the chiral separation of five racemic mixtures (PTA = phosphoric triamide). The separation results show chiral recognition ability of these materials with respect to racemates belonging to different families of compounds (amine, acid, and amino-acid), which show their feasibility to be potential adsorbents in chiral separation. The nano-composites were characterized by FTIR, TEM, SEM, EDX, XRD, and VSM. The VSM curves of nano-composites indicate their superparamagnetic property, which is stable after their use in the separation process. Fe3O4, Fe3O4SiO2, Fe3O4SiO2PTA(+) and Fe3O4SiO2PTA(-) are regularly spherical with uniform shape and the average sizes of 17-20, 18-23, 36-47 and 43-52 nm, respectively.
4-AcNH-Tempo-catalyzed oxidation of aldoses to aldaric acids using chlorine or bromine as terminal oxidants
Merbouh, Nabyl,Bobbitt, James M.,Brueckner, Christian
, p. 64 - 78 (2007/10/03)
The 4-AcNH-TEMPO-catalyzed oxidation of D-glucose to D-glucaric acid using elemental chlorine or bromine as the terminal oxidant is reported. The pH and temperature of the reactions were closely controlled to be between 0-5 deg C and pH 11.5, respectively. Spectroscopically (1H NMR) determined yields of glucarate were greater than 90 percent; yields of crystalline monopotassium D-glucarate (or disodium D-glucarate), isolated and purified by precipitation, were between 70 and 85 percent. Oxidations of mannose to mannaric acid and galactose to mucic acid were also demonstrated.
Plaster retarding composition
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Example 1, (2008/06/13)
The present invention is related to a calcium tartrate plaster retarding composition, characterised in that it has a mean particle size lower than 30 μm,The present invention is also related to the plaster comprising said composition and to the preparation process of said composition.
