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Sodium citrate

Additives

Sodium citrate

Sodium citrate is the trisodium salt of citric acid, used as a water softener and pH buffer in cleaning products. It is classified as an organic salt chelating agent derived from citrus acids.

Mineral or nutrientUpdated Feb 14, 2026
Health score+1.0
-5Good5

Water guidelines

Legal limit
Not specified
Health guideline
Not specified

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Mild skin irritation at very high concentrations, eye irritation if directly contacted

Benefits

Water softening, pH buffering, biodegradable, low toxicity

References

Waters containing Sodium citrate

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