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Butylated Hydroxytoluene BHT 25 Lb
BHT (Butylated Hydroxtoluene) is a white crystalline solid, about the same granular size as household sugar.
BHT is used products containing oils. It is used in cosmetics like lipsticks, powders, personal care products, as well as in perfumes, moisturizers, and personal cleanliness products, skin cleansers, and skin care products, and as a stabilizer in BioDiesel (see below)
BHT is an antioxidant that helps delay rancidity of oils and fats in natural oils, food products and cosmetics.
To use BHT in soapmaking, heat a portion of the oil(s) to be treated to 160°F+ and slowly stir the BHT into the oil. When it is totally dissolved and well mixed, stir the oil into the rest of your oils and stir well. Always treat the oils before adding the lye/water to the oils. Usage rate for BHT is .01% - .1% w/w (by weight), .05% w/w is typically used for treating soapmaking oils. For treating 5 pounds of oils you would use approximately .04 oz. or 1.135g of BHT, or about 1 tsp.
For best results, use BHT with tetrasodium EDTA. The EDTA ties up the metal ions and helps the BHT work better, but also BHT alone will tend to yellow the soap. BHT can be used to treat oils for use in cosmetics other than soap. Liquid oils with shorter shelf lives are best treated as soon as you receive or open them.
BHT, although used a small amount in foods, in soap making, and other products where animal fats, and natural oils are used - is very widely used in fuels and oils for stabilization. BHT works very well to reduce oxidation of biodiesel and should be used especially when biodiesel is expected to be stored over a long period of time. Biodiesel that's exposed to air will become oxidized or rancid, and can corrode engine parts and reduce the life of an engine and its fuel system components.
To useBHT with Biodiesel, first dissolve 200g of BHT into 800g of Biodiesel to make a 20% solution. Next, filter the solution down to 10 micron or less to remove any residue remaining in the solution. This makes it easy for proper mixing into your stored biodiesel.
Mix into your stored biodiesel concentrations in amounts of 600-1000ppm. 1 PPM means 1 Millionth of a percent by weight.
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