Comparing E500I - Sodium carbonate vs E451I - Pentasodium triphosphate

Synonyms
E500i
Sodium carbonate
washing soda
E451i
Pentasodium triphosphate
Pentasodium tripolyphosphate
Sodium triphosphate
Products

Found in 716 products

Found in 91 products

Search rank & volume
#5457K / mo🇺🇸U.S.
#291870 / mo🇺🇸U.S.
Awareness score

×11.56
over-aware

×1.38
over-aware

Search volume over time

Interest over time for 3 keywords in U.S. during the last 10 years.

Interest over time for 4 keywords in U.S. during the last 10 years.

Popular questions
  1. How to clean washing machine with vinegar and baking soda?

    To clean with sodium carbonate (E500i, washing soda), run an empty hot cycle with about 1/2–1 cup to degrease and soften scale, then wipe seals and run a rinse. If you also use vinegar, do it in a separate cycle—acid and alkali neutralize each other if mixed.

  2. Can you put baking soda in washing machine?

    If you mean sodium carbonate (E500i, washing soda), yes—add a small amount with detergent to boost cleaning and soften water, but it’s more alkaline than baking soda. Avoid on wool/silk and follow fabric and appliance instructions.

  3. How to make washing soda?

    Convert baking soda to sodium carbonate (washing soda, E500i) by heating it on a tray at about 200°C/400°F for 30–60 minutes, stirring until it turns dull and grainy. Let it cool and store airtight, as it’s hygroscopic.

  4. Can i put baking soda in washing machine?

    If you’re thinking of washing soda (sodium carbonate, E500i), yes—use sparingly as a laundry booster; it’s stronger than baking soda. Always follow garment care labels and avoid on protein fibers like wool and silk.

  5. Is baking soda good for washing fruits and vegetables?

    A mild baking soda (sodium bicarbonate, E500ii) solution can help remove dirt and some residues; rinse well. Sodium carbonate (E500i, washing soda) is more alkaline and not recommended for produce washing.

  1. How many formula units of magnesium phosphate will be produced from 35.8 g of sodium triphosphate?

    You can’t determine that from 35.8 g of pentasodium triphosphate alone—you need a balanced reaction and the amount of Mg2+ present, and in practice STPP mainly chelates magnesium rather than precipitating Mg3(PO4)2 unless it hydrolyzes to orthophosphate under specific conditions.

  2. How much sodium triphosphate in dish soap?

    Most household dishwashing liquids (and many automatic dishwasher detergents) now contain 0% phosphate due to regulations; some industrial/ institutional formulations can still include up to several–tens of percent STPP—check the product label or safety data sheet.

  3. What chemistry experiment to do with sodium triphosphate?

    Demonstrate water softening by comparing soap lather or measuring water hardness (EDTA titration) before and after adding a small, known amount of STPP to hard water.

  4. What is pentasodium triphosphate toothpaste?

    A toothpaste that includes pentasodium triphosphate (STPP) as a tartar‑control/whitening agent, binding calcium to reduce calculus and help lift surface stains; it’s used at low, safe levels for oral care.

  5. What is pentasodium triphosphate used for?

    As a food additive (E451i) it acts as a sequestrant, emulsifier and stabiliser to retain moisture and improve texture in processed meats/seafood and to control metal ions; outside food it’s widely used as a detergent builder and water softener, with an EFSA group ADI for phosphates of 40 mg/kg bw/day (as phosphorus).