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sodium phosphates ​

Basic Information ​

FieldContent
Chinese namesodium phosphates
English namesodium phosphates
INS/E numberINS 339
Functional classMineral salt
Year adopted1970
Approved byAustralia/New Zealand (FSANZ), European Union (EFSA)

What is it? ​

Sodium phosphates are sodium salts of phosphoric acid (ortho-, pyro-, tripolyphosphates), produced by neutralising phosphoric acid with sodium hydroxide. They are widely used as acidity regulators, emulsifying salts, humectants and quality improvers.

Source ​

Industrial：中和、缩合、干燥制得不同聚合度的磷酸钠盐

Why is it used? ​

  • Emulsifying salt in processed cheese
  • Improves water-holding and texture in meats
  • Adjusts pH and ionic strength
  • Used in drinks, seafood, bakery, cans

Common Foods ​

  • Processed cheese
  • Cured/sausage meats
  • Seafood and surimi
  • Carbonated drinks
  • Bakery
  • Canned foods

Safety ​

ADI (Acceptable Daily Intake)：0-70 mg/kg bw (as P, group ADI for phosphates)

Concerns：

  • 过量可能影响钙磷平衡与骨骼健康
  • 控制总磷酸盐摄入量

Usage Standard ​

China：GB 2760《食品安全国家标准 食品添加剂使用标准》

International：

  • EU Regulation 1333/2008 Annex II (E 339)
  • FDA 21 CFR 182.1778 (GRASS)
  • Codex GSFA (INS 339)
  • FSANZ Food Standards Code (339)

In a nutshell ​

Sodium phosphates are multifunctional phosphates for emulsifying and moisture; safe within limits but watch phosphorus intake.

Consumer Advice ​

Sodium phosphates are the sodium salts of phosphoric acid, used as emulsifying salts, moisture retainers, buffers and acidity regulators in processed cheese, ham, sausages, drinks and convenience foods to improve texture and hold water. They are safe at authorised levels, but both phosphate and sodium matter: very high intakes are associated with kidney and bone concerns, and those on low-sodium diets or with kidney problems should be mindful.

Dietary Restrictions ​

  • Vegan: ✅
  • Halal: ✅
  • Kosher: ✅

Allergens ​

✅ Free from common allergens

Disclaimer ​

The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.