Sodium Tartrates E335
buffering agent, sequestrant, emulsifier — Primarily synthetic (from tartaric acid).
Disodium tartrate (E335ii), Monosodium tartrate (E335i)
CAS: 868-18-8 (i), 6106-24-7 (ii)
Factual Regulatory Reference
This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.
What Is Sodium Tartrates?
Sodium tartrates (monosodium and disodium tartrate) are sodium salts of tartaric acid used as acidity regulators and sequestrants in confectionery and baked goods. They buffer pH, chelate metallic ions, and stabilize food systems. JECFA set a group ADI of 30 mg/kg body weight for tartaric acid and its salts. EFSA reviewed tartrate salts in 2014, confirming safety. Disodium tartrate is also used in cream of tartar substitutes and as a buffering agent in various food manufacturing processes.
? Did You Know?
Beyond food, Sodium Tartrates is also used in cosmetics, medicine, industrial applications, household products. Its versatility makes it one of the most multi-purpose chemical compounds in everyday life.
In the EU, Sodium Tartrates has a "quantum satis" authorization — Latin for "as much as needed." This means there's no specific maximum limit; manufacturers use only what's technologically necessary.
Detailed Regulatory Assessment
European Union (EFSA)
Permitted in various food categories
Official EFSA LinkUnited States (FDA)
Regulated as a direct food additive under FDA CFR titles.
Japan (MHLW)
Compliant with Japanese food sanitation law.
Acceptable Daily Intake (ADI)
International Standard (JECFA)
mg/kg body weight per day
European Standard (EFSA)
Natural Occurrence
This additive is not known to occur naturally in significant quantities.
Manufacturing
Produced by neutralizing tartaric acid with sodium hydroxide or sodium carbonate. The degree of neutralization determines whether monosodium tartrate (E335i) or disodium tartrate (E335ii) is formed. Tartaric acid itself is typically obtained from wine industry byproducts.
Applications Beyond Food
Buffering agent and chelating agent in skincare formulations.
Buffering agent, excipient in effervescent formulations.
Electroplating, leather tanning, textile dyeing.
Cleaning products, metal polish.