[xchcui]

Hi.

Instead of throwing away the small pieces that left over
from the soap bars,i collected them(all of them the same type),grated them,added water to them and boiled them in a pot until i got smooth texture.
The liquid soap that i made seems to work ok. but i am not sure about what i am actually made.
Since i melt the grated soap in water and boil them:
Am i changing,in that way somehow,the composition of the soap in a negative way,that it will be not safe to use the created liquid soap?

Thanks in advance.

[Arkcon]

Hi.

Instead of throwing away the small pieces that left over
from the soap bars,i collected them(all of them the same type),grated them,added water to them and boiled them in a pot until i got smooth texture.

So you've done this:  https://www.google.com/search?q=soap+bits&ie=utf-8&oe=utf-8#q=soap+bits+recycling

The liquid soap that i made seems to work ok. but i am not sure about what i am actually made.

I suppose its worth wondering, if it leads to greater understanding.

Since i melt the grated soap in water and boil them:
Am i changing,in that way somehow,the composition of the soap in a negative way

Interesting.  Well, start with the composition of the components: soap (that will be tough, its of variable composition, and at least partly unknown) and water.  And see if you can check the properties to see if heating changes them, and to what, and then the safety of the new products.

,that it will be not safe to use the created liquid soap?

Well, there's a breakdown of what we might want to think about.  On the other hand, you've got to be kidding, right?

Thanks in advance.

[xchcui]

Hi Arkcon.

So you've done this:  https://www.google.com/search?q=soap+bits&ie=utf-8&oe=utf-8#q=soap+bits+recycling

No,i didn't make a bar soap,i made liquid soap from left over bar soap.

I suppose its worth wondering, if it leads to greater understanding.

Interesting.  Well, start with the composition of the components: soap (that will be tough, its of variable composition, and at least partly unknown) and water.  And see if you can check the properties to see if heating changes them, and to what, and then the safety of the new products.

It is my main concern and the main issue here,i am not actually try to understand what is exactly happening to each component in the soap,it is beyond my knowledge and my abilities.This is the reason that i am asking the experts.I just would like to know if the action of boiling the grated soap in water can create  a bad chemicals or somthing like that,which may cause the new liquid soap to be not safe for use.
In short:will the new liquid soap be the same safety as the soap bar?less safety?
What is your recommendation:use it or not use it?

Well, there's a breakdown of what we might want to think about.  On the other hand, you've got to be kidding, right?

BTW,i didn't understand that last quote,i didn't understand why you said that i have got to be kidding.

[xchcui]

I didn't mention any specific brand of soap and i didn't refer my question to any specific of site which explains how to made that liquid soap.(and there are alot of them).
So,i don't understand why are you afraid to answer my question.
i have some liquid soap,which i made.
And i don't know if it safe to use or not.
Can someone help me here?

[AWK]

This is an artificial problem. You do not use soap without water. The problem lays only in hardiness of water (both in using solid soap and in its water emulsion). Some additives in different soaps, after mixing, can form some toxic compounds.
Note, liquid soap is known (potassium salt). In old times soap was produced from fat and wooden ash (or natron)

[xchcui]

This is an artificial problem. You do not use soap without water.The problem lays only in hardiness of water...

Hi AWK.

Yes,of course we use soap with water,but the mixture of the water with the grated soap is not my concern.
(though maybe you refer to bacteria that can be developed in the water/hardiness of the water).
My main concern is:if the boiling process made the final liquid soap worse than the soap bar itself?

...Some additives in different soaps, after mixing, can form some toxic compounds...

As i mentioned before,i used only one type of soap,i didn't mix different soaps,if it was your intention.
I am aware of the fact that soap itself like:shampoo,tooth paste etc.are not contained,lets say,an healthy ingredients.
But,again,it is not my main concern.we live in a modern Era for the good things and for the bad things in it.
My main concern is to know:if using the liquid soap which i made by BOILING grated soap bar with water is the same as using the soap bar,from the healthy aspect or maybe it is wrose?

[billnotgatez]

So are we expected to speculate on many possibilities?

Bar soap could have the following ingredients

Fragrance(s)/perfume(s)
Glycerin
Stearic acid
2,6-Di-t-butyl-p-cresol (BHT)
Pentasodium pentetate
FD&C Green #3
D&C Green #8    
Sodium chloride
Water
Sodium tallowate
Titanium dioxide
Coconut fatty acids
Sodium cocoate
Sodium palm kernelate
Palm kernel acid

or

Fragrance(s)/perfume(s)
Glycerin
Stearic acid
Oleic acid
Sodium lauryl sulfate (SLS)
Sodium hydroxide
Palm kernel acid
Colorant/Pigment/Dye(s)

or

Fragrance(s)/perfume(s)
Glycerin
Tetrasodium EDTA
Sodium chloride
Water
Sodium tallowate
Coconut fatty acids
Sodium cocoate
Sodium palm kernelate
Tallow acid
Sodium Palmate
Palm kernel acid
Palm acid

or

Fragrance(s)/perfume(s)
Glycerin
Tetrasodium EDTA
Sodium chloride
Sodium tallowate
Coconut fatty acids
Sodium cocoate
Tallow acid
Sodium Palmate
Palm kernel acid
Palm acid

or

several others



I GOOGLE

how bar soap is made

and got many hits
This is one link
http://www.madehow.com/Volume-2/Soap.html
Of interest is that boiling is a common step in the process.

[billnotgatez]

Upon further reflection
We can only caution you that there may be a health issue however unlikely.
But we can not give specific health advice.
Per rules

Due to their potential health hazards, we will also not help you prepare your own medicines or cosmetics.

Also we avoid giving the sort of advice you seek due to litigation possibilities
This is a forum policy.
Click on the link near the top center of the forum page.
Forum Rules: Read This Before Posting.
http://www.chemicalforums.com/index.php?topic=65859.0

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[billnotgatez]

I have unlocked the thread.
I suggest you do a GOOGLE and that may give you a definitive answer.
There are many sites like Hints from Heloise
http://www.heloise.com/
that may have an answer.

As an aside and probably not necessary for you answer
here is another soaps ingredients

Fragrance(s)/perfume(s)    
Stearic acid
Lauric acid
Sodium stearate
Sodium isethionate
Tetrasodium etidronate
Sodium lauroyl isethionate
Sodium chloride
Water
Sodium tallowate
Titanium dioxide
Sodium cocoate
Cocamidopropyl betaine

[xchcui]

I have nothing to do with the ingredients of the soap bar.
The ingredients are written on the soap bar package and i can check by google what is the function of each ingredient.
I know that most of them are not good to health,but it is not my main issue.
As i mentioned,i am trying to understand if the liquid soap that i made from the soap bar become wrose than the soap bar itself,from the health aspect,since i boiled it.
If the soap bar itself is healthy or not is not the issue here.
Before i came here i tried to find the answer at google,but with no success.i didn't find the answer even in the address that you attached:
http://www.heloise.com/

Anyway thanks for your replies.

[AWK]

Soap is made using elevated temperature and water solution. Hence your question (for pure soap) is artificial. Note, chemist talking about water means about distilled (demineralized) water.

[xchcui]

Soap is made using elevated temperature and water solution. Hence your question (for pure soap) is artificial. Note, chemist talking about water means about distilled (demineralized) water.

Do you mean that the boiling process itself will not be an issue,if i will use distilled water instead of tap water?

[AWK]

https://www.wikiwand.com/en/Soap_scum

[xchcui]

https://www.wikiwand.com/en/Soap_scum

I am aware of the fact that the soap is work better with soft water rather with hard water.
This is the reason,for example,that in laundry machines that work with hard water you need to add more laundry detergent oppose to with soft water,since the calcium and/or the magnesium in the hard water,react with the sodium and weakened the power of the detergent.
I know that,in my case,the liquid soap will be less efficient than the bar soap,but it is not my concern.
So,i asked you:if you meant to say that the boiling process itself will not be an issue(creating bad chemicals that wasn't in the soap bar before?),if i use distilled water instead of tap water?(since the soap itself are made at elevated temperatures)
Is that what you meant to say?

[Intanjir]

If you had a soap consisting of nothing but sodium fatty acids then merely hitting boiling temperatures with that would not be a concern. Soaps resembling such are commonly brought to nearly boiling temperatures in their creation from the heat of mixing. On the other hand a white soap incorporating milk would become brown if brought to such temperatures. So we are getting some reactions in this case but I don't know of any reason why a 'scorched' milk soap would be unsafe.

Many of the ingredients in commercial bar soap may not have experienced such a high temperature in their manufacture so you would have to do your homework to be fully confident that they remained perfectly safe, like Arkcon suggested.

We aren't likely to make any clear declarations of safety for you as the forum rules are set up to protect the site from liability.