DL-Tartaric acid
CAS 133-37-9
EC 205-105-7
Formula C4H6O6
MW 150.09 g/mol
Sweeteners & Food Additives Food & NutritionPharmaceuticals & HealthcarePersonal Care & Cosmetics Flavoring & AcidulantpH Regulation & BufferingAntioxidant & Stabilizer
Description
DL-Tartaric acid (CAS 133-37-9) is the racemic form of tartaric acid, also known as racemic acid or uvic acid. It is a naturally occurring organic acid produced synthetically as the racemate of its L- and D- enantiomers. Unlike L-tartaric acid, it carries no E-number designation for food use in the EU.
In pharmaceutical manufacturing, DL-tartaric acid functions as a buffering agent and pH regulator in oral formulations, controlling acidity through its two carboxylic groups. In personal care, it acts as a skin conditioner and protectant by chelating metal ions and stabilizing emulsion systems. It also serves as a heat stabilizer in polymer processing applications.
DL-Tartaric acid is available in technical and pharmaceutical grades, with the latter conforming to Ph.Eur. and USP-NF monographs. It is fully REACH-registered for supply within the EU. Standard packaging includes 25 kg bags, with bulk options available on request.
In pharmaceutical manufacturing, DL-tartaric acid functions as a buffering agent and pH regulator in oral formulations, controlling acidity through its two carboxylic groups. In personal care, it acts as a skin conditioner and protectant by chelating metal ions and stabilizing emulsion systems. It also serves as a heat stabilizer in polymer processing applications.
DL-Tartaric acid is available in technical and pharmaceutical grades, with the latter conforming to Ph.Eur. and USP-NF monographs. It is fully REACH-registered for supply within the EU. Standard packaging includes 25 kg bags, with bulk options available on request.
Physical Properties
| Melting Point | 206 °C |
| Boiling Point | 191.59°C (rough estimate) |
| Density | 1.79 g/cm³ |
| Flash Point | 210 °C |
| Appearance | white crystalline powder |
| Color | White |
| Odor | at 100.00 %. very mild caramellic |
| Form | Liquid |
| Water Solubility | soluble |
| Vapor Pressure | <0.1 hPa (20 °C) |
| Refractive Index | 1.5860 (estimate) |
| pH | 1.6 (100g/l, H2O, 25℃) |
| Log P | -1.43 |
Safety & Handling (Learn More)
Warning GHS05 GHS07
H
H315H318H319H335
P
P261P264P271P280P317P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29181200 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
2,3-dihydroxybutanedioic acidRacemic AcidUvic acidTARTARIC ACIDParatartaric acid
Related Products
Raw Materials
Derivatives
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