Baking soda scrubs; sodium sesquicarbonate cuts grease
#0026 Home & daily life
Fact rank
A
pH and solubility confirmed in manufacturer material; the comparison of how easily they dissolve is the manufacturer's description, not a figure
Wow rank
A
Two similar white powders, told apart with numbers
Usefulness
A
Makes clear which one to buy and use
Verification: Supported by evidence
AI verification reports the evidence it found; it does not guarantee that a claim is true.
Baking soda and sodium sesquicarbonate are both weakly alkaline, but sesquicarbonate is more alkaline and dissolves more easily, so it suits wiping or soaking greasy grime. Baking soda, whose grains do not dissolve easily, suits scrubbing as a scouring powder.
Why
The pH (degree of acidity or alkalinity) of the solution is 8.2 for baking soda (2%, 20°C) and 9.8 for sodium sesquicarbonate (1%, 25°C). Baking soda has fine particles that do not dissolve easily, so it works as a cleanser.Evidence
Primary Manufacturer (Seikatsu to Kagaku Sha) on baking soda: its solution is very weakly alkaline at pH 8.2 (2%, 20°C); its fine particles do not dissolve easily, so it can be used as a cleanser link
Primary The same manufacturer on sodium sesquicarbonate: dissolves easily in water; its solution is weakly alkaline at pH 9.8 (1%, 25°C) link
Notes and limits
pH varies with concentration and temperature; the same manufacturer gives baking soda as pH 8.4 elsewhere, so values vary. The claim that sesquicarbonate dissolves more easily rests on the manufacturer's description, not on figures under the same conditions. Baking soda is not suitable for aluminium.
Derivations
Derived from: 汚れと洗剤は相性で選ぶ
Derived facts: —