Comparing E211 - Sodium benzoate vs E337 - Potassium sodium tartrate
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Found in 16,173 products
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Search volume over time
Interest over time for 2 keywords in U.S. during the last 10 years.
Interest over time for 2 keywords in U.S. during the last 10 years.
Popular questions
Is sodium benzoate bad for you?
Generally no—it's an approved preservative with an acceptable daily intake (ADI) of 0–5 mg/kg body weight, and typical intakes are well below this. Rare sensitivities (e.g., hives/asthma-like symptoms) can occur, and in vitamin C–containing drinks exposed to heat/light it can form trace benzene, which manufacturers work to minimize.
Is sodium benzoate safe?
Yes—it's authorized by regulators (e.g., FDA, EFSA, JECFA) with an ADI of 0–5 mg/kg body weight and is GRAS in foods up to 0.1%. Those with sensitivities may wish to limit it, and beverages containing both sodium benzoate and ascorbic acid should be protected from heat/light to prevent benzene formation.
Is sodium benzoate safe for skin?
Yes—it's widely used as a cosmetic preservative at low concentrations and is considered safe by regulatory and review bodies. It may occasionally cause mild irritation or sensitization, especially on very sensitive or damaged skin.
Is sodium benzoate bad for hair?
No—at the low levels used to preserve shampoos and conditioners it does not damage hair fibers. As with many preservatives, higher concentrations can irritate the scalp, but consumer products use small amounts.
Is sodium benzoate harmful?
Not at permitted food and cosmetic levels; safety limits (e.g., ADI 0–5 mg/kg body weight) are set to prevent harm. Main concerns are rare intolerance reactions and trace benzene formation in vitamin C–containing drinks under heat/light, which industry monitors and minimizes.
E337 sodium potassium tartrate is in what foods?
It’s used as a sequestrant and stabilizer in some beverages (e.g., soft drinks and juices), jams/jellies, sugar syrups and confectionery, and occasionally in processed fruits/vegetables or baking mixes; look for E337 on ingredient lists.
How to grow potassium sodium tartrate crystal?
Dissolve the salt in hot water to make a saturated solution, then let it cool or evaporate slowly to form crystals; larger crystals grow best from a clean seed crystal and in low humidity because Rochelle salt is deliquescent.
How to prepare potassium sodium tartrate?
It is produced by neutralizing tartaric acid with sodium and potassium bases (e.g., carbonates) and crystallizing the tetrahydrate (Rochelle salt). For food use, obtain food‑grade E337 rather than attempting home preparation.
How to prepare potassium sodium tartrate solution from sodium and potasium tartarate?
Simply dissolve sodium tartrate and potassium tartrate together in water to the desired concentration; in solution this is effectively potassium sodium tartrate, while isolating the true double salt requires crystallization from an equimolar mix.
How to prepare potassium sodium tartrate solution from sodium and potassium tartrate?
Dissolve appropriate amounts of sodium tartrate and potassium tartrate in water to reach your target strength; the mixed ions give a solution equivalent to potassium sodium tartrate, though the double salt forms only on crystallization.