how would soaps made from animal fat differ from soaps made with vegetable oil??
925071
Soaps made with animal fat usually contain another ingredient like lye, which is the only part of animal based soap that actually kills germs and provides any sanitation. The animal fat is simply the medium to hold the lye (and possibly a skin conditioner to counteract the harshness of the lye). Vegetable oil based soaps are made with saponified oils which have been processed in a manner that gives them a germ killing abilities and so can be used by themselves rather than in combination with other ingredients. Although, if you are making soaps yourself, I would recommend adding more powerful antibacterials like tea tree oil or lavender oil, especially since most people don't bother to wash their hands very thoroughly, if at all.
98572
Since vegetable oils are not pure materials, they will have varying molecular weights depending on the specific mixture of a sample of the oil.  I would recommend using Chemfinder.com and free MSDS resources on the internet to gather data.\n\nFor example, Chemfinder.com lists lauric acid as the primary ingredient of coconut oil.  Lauric acid has a molecular weight of 200.  This may be good enough for your purposes.
563015
actually its the friction that removes the germs not the soap.the soap binds with oils,grease and dead skin cells to remove them.
69391
Soaps generally are only used to lubricate your hands (or other areas) to allow bacteria to 'slide' off. People think soaps act as an antibacterial but they are wrong. It is simply the lubricating affect of them that makes them useful. This also means that it doesn't matter whether you use hot or cold water either. Bacteria is not killed any better with hot water than it is with cold.
657866
horse hooves are for glue, not soap.  what we now call soap was originally made made by mixing rendered (melted) animal fat or olive oil with lye (lye occures naturally in wood ash).\nMost modern soaps aren't really soap, they're detergents made from petroleum.
53525
Sodium hydroxide is a very strong base, not an acid (the common name is lye).\nTriglycerides are fats, like beef tallow.  Mixing them and allowinging to react would produce Granny's lye soap.
808217
Fats are organic compounds that are made up of carbon, hydrogen, and oxygen; they are the most concentrated source of energy in foods. Fats belong to a group of substances called lipids. Fats come in liquid or solid form. All fats are combinations of saturated and unsaturated fatty acids. Fats can be called very saturated or very unsaturated depending on their proportions.\nCholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. It is a soft, waxy substance found in all parts of the body. This includes the nervous system, skin, muscle, liver, intestines, and heart. It is made by the body and also obtained from animal products in the diet.\nPlease see the webpages for more details on Fat and Cholesterol.
59026
You could test that rather easily at home by placing a drop of oil on a bar of soap as well as an equal  drop of water and checking for sofening after say 15 minutes.  Of course there are many kinds of oil but only one kind of ordinary water.  I'd bet on the water because water dissolves almost everything.  Actually grease is a mixture of soap and oil but I believe that you must melt the soap to mix it with the oil.  Soap is in fact saponified oil (oil treated with an alkali).  Perhaps hot oil would beat cold water.  But dissolving and mechanically mixing are two very different processes.  Good luck.
843839
Mineral oils are long chain hydrocarbons, and do not saponify at all...vegetable oils are esters, so NaOH breaks them down to the Na salt of the carboxylic acid and glycerine (usually).
437597
This website has a very nice description of how to make homemade soap\n\nhttp://www.teachsoap.com/soapmakingmethods.html
904092
A soap is a surface active agent, which  means it attaches to the surface of a substance or slightly alters the surface energy of the substance.  When two materials are brought into contact suchs as two liquids or a solid and a liquid, or two solids, the differences in the surface energies will determine whether the are immiscible or , in the case of solids, one wets the surface of another or simply beads up on it.  \n\nThe best "soap" needs to be chosen based on what the liquid chemistry is.  For example, if you want to mix a material in water or alcohol or oil.  Each could require a different "soap" to be used.
481942
Soap is the sodium - Na - salt of a fatty acid, that is a salt obtained when a high carboxylic acid like palmitic acid etc. reacts with NaOH(caustic soda)&#92; or sodium hydroxide)\n\nIts chemical formula in its general form is R-COO-Na\nwhere R is an alkyl group of the form C(n)H(2n+1)-\n\nfor eg.- C(17)-H(33)-COO-Na\n\nwhere the H atom of the acid is replaced by the Na atom in a process called Saponification or salting of soap
492244
I think I heard this answered before somewhere. If I remember corretly it's that the amount of coloured pigment in the soap is tiny. When 'foamed up' the actual foam is only a few microns thick...so thin that the colour pigment (which was a small % in the first place) can't be seen?
244699
Soaps are water-soluble sodium or potassium salts of fatty acids.Saponification of fats and oils is the most widely used soapmaking process.\nDetergent surfactants are made from a variety of petrochemicals (derived from petroleum) and/or oleochemicals (derived from fats and oils). \n\nCheck these links to find more information On Soaps & detergents to help your chemistry Project.
923700
Fatty acids do not hydrolyse. Glycerides hydrolyse into fatty acid and glycerol.
672721
Stearic acid is a fatty acid extracted from beef. If it's pressed, I can only guess it's either pressed like olive oil is pressed from olives. Or pressed as in compressed to form a denser solid mass.\n\nVegans should take note of products containing stearic acid -- it ain't vegan friendly.
908417
Ha ha... we just use vegetable oil... :-)