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Surfactant Active Percentage Calculator

Work out surfactant active percentage instantly with clear inputs, formula shown and shareable results.

About Surfactant Active Percentage Calculator

Surfactant raw materials are supplied as solutions — sodium laureth sulphate is typically 70% active, cocamidopropyl betaine 30%. Formulating on active content rather than as-supplied weight is essential, otherwise switching between suppliers with different actives silently changes the product.

Formulas

Active content

Active mass = raw material x raw active %; active in product % = active mass x 100 / batch size

Raw material needed

Raw material = batch x target active % / raw active %

Worked example

With the default values below, Surfactant Active Percentage Calculator returns Actual Active Surfactant of 21.0000%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Surfactant Raw Materialminimum 0 g
300 g
Active Content Of Raw Materialaccepts 0–100 %
70 %
Batch Sizeminimum 0 g
1,000 g
Target Active Surfactantaccepts 0–60 %
14 %

Results

Actual Active Surfactant
21.0000%
Active Surfactant Mass
210.000
Raw Material For Target
200.000
Adjustment Needed
-100.000

Step by step

  1. 1Values used
  2. 2Active content
  3. 3Raw material needed
  4. 4Actual Active Surfactant= 21.0000
  5. 5Active Surfactant Mass= 210.000
  6. 6Raw Material For Target= 200.000
  7. 7Adjustment Needed= -100.000

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why formulate on active?

Because cleaning power, foam and viscosity depend on active surfactant concentration. Two 30% dosages of raw materials at 30% and 70% active give completely different products.

Does the water in the raw material count?

Yes. It must be deducted from the added water in the formula, or the total will exceed 100% and the actual concentration of everything will be wrong.

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Surfactant Active Percentage Calculator | Calcrivo