L-(+)-Tartaric Acid

L-(+)-Tartaric Acid

CAS Number: 87‑69‑4 (not listed above) – verified from context

Synonyms: L-(+)-Tartaric acid; 2,3-dihydroxybutanedioic acid; L-tartaric acid

Chemical Formula:C₄H₆O₆

Molecular Weight:150.09 g/mol

Product Introduction

A white crystalline powder with a tart acidic taste (1.5× stronger than citric acid). Naturally occurring in grapes and wines, used as a food acidulant (E297), chelator, and in pharmaceuticals and metal cleaning.

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Physical & Chemical Properties

Property Value
Appearance White crystalline powder
Odor Odorless
Density ~1.76 g/cm³
Melting Point 168–172 °C
Solubility in Water @20°C ~1390 g/L
Molecular Weight 150.09 g/mol

Applications

  • Food acidulant:pH control, tartness in wine, beverages, baking.
  • Chelating agent:Binds Ca²⁺, Mg²⁺ – used in fertilizers, metal cleaners.
  • Pharma/industrial:Effervescent salts, cream of tartar derivates, pH buffers.

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