Sodium tartrate dihydrate

Sodium tartrate dihydrate (CAS 6106-24-7 ), also known as disodium tartrate dihydrate, is the hydrated sodium salt of tartaric acid used across food, pharmaceutical, and cosmetic manufacturing.

It functions primarily as a pH buffer and stabilizer, maintaining consistent acidity in formulations where process control is critical. In food processing, it buffers pH in confectionery, jams, and beverages.

This helps manufacturers meet consistent taste and texture targets across batches. Pharmaceutical formulators use it as a buffering agent in oral and topical preparations where controlled pH is required.

Controlled pH directly affects active ingredient stability and shelf life. In personal care, it stabilizes emulsions and adjusts pH in creams, lotions, and cleansing products for consumer use.

It also serves as a calibration standard and reagent in analytical and quality control laboratory settings. Sodium tartrate dihydrate is supplied as a white crystalline powder or granules for industrial use.

Food-grade and reagent-grade specifications are the most commonly available, with food-grade material conforming to FCC standards and reagent grades meeting ACS requirements.

Other grades may also meet Ph.Eur. requirements depending on the specific application. Packaging typically ranges from small laboratory quantities up to bulk industrial quantities depending on the supplier.

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