Experiment to make soap, Science

Assignment Help:

How to make soap

Soap can be made from waste fat. Secure some waste fats and melt in a dish. Strain the fat by several layers of cloth. Weigh the fat and then weigh out about one third as much for profit lye (sodium hydroxide). Dissolve the lye in water. Heat the fat in an iron kettle or dish. When it is melted, pour the lye solution in slowly and stir continuously. Stay the flame low to avoid boiling over. Let the fat and lye boil for 30 minutes with recurrent stirring. After boiling add common salt-about twice the weight of lye used. Stir well. When this mixture has cooled the soap will appear as a layer at the top.

 


Related Discussions:- Experiment to make soap

Laboratory safety codes, Laboratory Safety Codes: BIS has prepared the fol...

Laboratory Safety Codes: BIS has prepared the following three codes (in the form of small books) regarding laboratory safety: i) Code of safety in microbiological laboratories

Critical thinking., In hydraulic machines a liquid that has filled a pipe i...

In hydraulic machines a liquid that has filled a pipe is pushed at one end of the pipe. The liquid then pushes a machine part located at other end of the pipe. Why isn''t gas used

Show the steps needed to derive the recursive formula, Consider the followi...

Consider the following differential equation: t 2 x''+ 5 t x' + (3 + 2 t) x = 0 a. Show the steps needed to derive the recursive formula for the coefficients of the pow

Explain rh blood grouping system, Explain Rh Blood Grouping System Some...

Explain Rh Blood Grouping System Some individuals also have a so called Rh antigen on the surface of their RBCs. Those who have it are called Rh (+) and those who do not have i

Explain vaginal bacteria - external defence mechanism, Explain Vaginal Bact...

Explain Vaginal Bacteria - External Defence Mechanism Vaginal bacteria: Certain bacteria normally live in the vagina. They produce lactic acid, which kills the bacteria. Hence,

Marasmus, Marasmus: This is caused due to the severe deficiency of bo...

Marasmus: This is caused due to the severe deficiency of both proteins and calories in the diet. Nutritional surveys among pre-school (1 to 5 years) children show that more t

To study a hailstone, To study a hailstone When it hails, collect some ...

To study a hailstone When it hails, collect some of the hailstones. Cut them in half and view how the ice of the hailstone has been built up in layers. If you live in a region

Explain the spinal nerves, Explain the Spinal Nerves As mentioned earli...

Explain the Spinal Nerves As mentioned earlier, there are 31 pairs of spinal nerves that leave the vertebral canal by passing through the intervertebral foramina formed by adja

Air expands when heated, Air expands when heated To show that air expan...

Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd