Aanchal
Member

Are assay and concentration same in effect while formulating?

While formulating detergents or any other product, if commercially available raw material is at a lower concentration than needed, can we use it in larger quantity.

For eg., SLES is needed at 69% assay . I am getting it in 28% concentration. Can I use the 28% SLES in increased ratio?

While formulating detergents or any other product, if commercially available raw material is at a lower concentration than needed, can we use it in larger quantity.

For eg., SLES is needed at 69% assay . I am getting it in 28% concentration. Can I use the 28% SLES in increased ratio?

## Comments

For every 100 grams of a 28% solution you put in, you are only putting in 28 grams of SLES.

The maths is simple: What you want, divided by what you have, multiplied by 100.

So, 69 %/28% x 100 = 246.4% which clearly will not work.

Thanks Perry.

I understand that evaporating is a sure shot solution.

Can adding additional amount help too?

My formula states 10 % of 69% SLES (it is a water based formula)

So, 10*69/28 =24.6 % _ That is, 28% SLES in the amount 24.6 %

Here, I am adding additional water with the 28% SLES so I shall deduct water in the formula proportionately.

Can this be done?

Yes, that would work.