Comparing E339 - Sodium phosphates vs E500III - Sodium sesquicarbonate
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Popular questions
How are sodium phosphates made?
They’re produced by neutralizing food‑grade phosphoric acid with sodium hydroxide, carbonate, or bicarbonate to the desired ratio to yield mono-, di-, or trisodium phosphate, then crystallizing (often as hydrates); condensed polyphosphates are made by dehydrating/condensing orthophosphates at elevated temperatures.
How do saline enema sodium phosphates work?
They act as hyperosmotic salts that draw water into the colon, increasing volume and stimulating peristalsis to trigger a bowel movement; improper use can cause fluid and electrolyte imbalances, so they should be used only as directed.
How does sodium aluminate react with phosphates?
In water, sodium aluminate hydrolyzes to Al(OH)3, which binds phosphate and precipitates it as insoluble aluminum phosphate (AlPO4), especially near neutral pH—this is the basis for phosphate removal in water treatment.
How many meq of sodium does sodium phosphates have?
It depends on the specific salt and hydration: anhydrous NaH2PO4 ≈8.3 mEq Na per gram, Na2HPO4 ≈14.1 mEq/g, and Na3PO4 ≈18.3 mEq/g (hydrates contain less per gram); a typical adult sodium phosphate enema contains about 190 mEq of sodium.
How many sodium phosphates are there?
There are three main orthophosphate salts used in foods—monosodium, disodium, and trisodium phosphate—listed as E339(i–iii), plus various hydrates and condensed (polyphosphate) forms.
How much sodium sesquicarbonate added to laundry sop?
As a laundry booster, use about 1–2 tablespoons (15–30 g) per standard load; in a DIY powder detergent, it’s typically 5–15% of the formula by weight. Dissolve well and avoid use on wool or silk.
How ro clean bronze with sodium sesquicarbonate?
Conservators often use a 5% w/v solution (about 50 g per liter of deionized water) to soak bronze affected by “bronze disease,” changing the solution periodically until activity ceases, then rinse, dry thoroughly, and apply a protective coating. Always test on a small area first and avoid prolonged contact with sound patina.
How to make sodium sesquicarbonate?
Combine equimolar sodium carbonate (washing soda) and sodium bicarbonate (baking soda) in water—e.g., 106 g Na2CO3 with 84 g NaHCO3—then allow the double salt to crystallize, filter, and dry. For food applications, purchase certified-grade material rather than making it at home to ensure purity and composition.
Is sodium sesquicarbonate safe?
Yes—E500(iii) is an approved food additive used as an acidity regulator/raising agent and is considered safe at typical use levels; it mainly contributes sodium and alkalinity. Excess exposure can irritate eyes/skin or upset the stomach, so handle the powder carefully and follow normal use levels.
Sodium sesquicarbonate what is it used for?
In foods (E500iii) it serves as an acidity regulator, buffer, and leavening agent. Beyond food, it’s used as a detergent builder/water softener, mild alkaline cleaner, pH buffer in baths, and in conservation treatments for bronze.