Abstract Research: acid from juice Researcher: Girl Thananya Beach blessing. Aerosols doped girls Pim Pim check. Prang Sri boy Atthapol Enjoy your advisor: emperor Pan Libra Year: 2557 Abstract: This study aims 1) to determine the concentration of lemon, orange, pineapple, 2) to compare the performance of acid from the lemon, orange, pineapple that can remove ink stick. On Clothes year 2557 conducted by the study was divided into two phases, the first level of the acidity of the juice and ordered from the most to the least by lemon, orange, pineapple juice, lime juice, orange. Pineapple was tested with paper Universal Indigo Decatur. Sort the pH level. From the most to the least stage 2 study in corrosion stains of ink onto clothing by lemon, orange, pineapple juice fabric with stains, inks were tested by applying to soak in the juice. each of them for about 30 minutes, that juice can eliminate stains best results revealed that 1) orange juice with a concentration pH of 4 limes are concentrated pH of 3 pineapple juice there. the concentration pH of 3, 2), pineapple juice and lemon juice to get rid of dirt the best.
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