Description

Metatartaric Acid CAS NO 31054-64-5 is a specialized organic acid derived from tartaric acid, functioning as a highly effective crystallization inhibitor and stabilizer. Its primary commercial value lies in preventing the precipitation of tartrate salts, thereby ensuring product clarity and stability in sensitive formulations. This makes it an essential processing aid for manufacturers in the food and beverage, pharmaceutical, and cosmetic industries seeking to enhance product shelf life and visual appeal.

Application

• Wine Stabilization: Prevents the formation of potassium bitartrate (cream of tartar) crystals in bottled wine, maintaining clarity and consumer appeal.
• Beverage Processing: Used in fruit juices, soft drinks, and other beverages to inhibit tartrate precipitation and stabilize colorants.
• Food Additive: Acts as an acidity regulator and sequestrant in various food products, improving texture and stability.
• Pharmaceutical Excipient: Employed as a stabilizer in liquid formulations and syrups to prevent crystallization of active ingredients.
• Cosmetic Formulations: Serves as a pH adjuster and chelating agent in creams, lotions, and personal care products.
• Industrial Applications: Functions in metal cleaning solutions and as a component in certain chemical synthesis processes where tartrate complexation is required.

Basic Information

Product Name	Metatartaric Acid
CAS No.	31054-64-5
Molecular Formula	C8H10O11
Molecular Weight	282.16 g/mol
Synonyms	Metatartaric Acid; 2,3-Dihydroxybutanedioic acid, dimer; Poly(tartaric acid); Tartaric acid polymer; E 353; INS 353; Wine Stabilizer; Tartrate Stabilizer
EINECS	250-416-4

Quality Control

Our Metatartaric Acid is produced and tested to meet stringent quality standards suitable for food-grade and industrial applications. We ensure compliance with relevant specifications, including Food Chemicals Codex (FCC) and other international guidelines where applicable. Certificates of Analysis (COA) documenting purity, assay, and specific parameters are available upon request to guarantee traceability and batch-to-batch consistency for our B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent caking and degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay	Min. 98.0%
Loss on Drying	Max. 2.0%
Sulfated Ash	Max. 0.1%
Heavy Metals (as Pb)	Max. 10 ppm
Arsenic (As)	Max. 3 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.