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A big thank you We heartily appreciate all the replies we got. We are using stainless steel for our device, and polypropylene for storage of KOH aq. We visited a soap making factory to gain more insight from the chemist there, and we would like to ask is it necessary to let the soap for a year...

Hi again! We would like to ask if the soap that we made is biodegradable or not?If Yes,why is it?:confused: Thank you!:)

Liquid Soap and Suitable Materials Hi again! We hereby intend to ask the reasons why we need to stir the soap paste continuously. If we want to design our own stirrer to stir the mixture, what kind of material should we use so that there's no reactions will occur? Is a rice cooker made of...

Why the oil does not need a specific temperature? And yes, our school's cafeteria only uses one kind of oil which is palm oil. The ratio of KOH: Used Cooking Oil is 1: 4.2. And thank you for your reply tho!:) The cooking oil that we used is not clean 'cause we're not filtering our cooking...

Hi! We're a robotics team from Malaysia. We've been diligently reading from this forum and it's been a HUGE help in our project! We plan to make a robot that automatically converts used cooking oil into LS for our school cafeteria. We aren't using the glycerin method because glycerin and...