Phosphate-Free Formulation of JIS (Japanese Industrial Standard) Reference Detergent

Autor:	Yuji Yoneyama, Masaaki Yamamura, Tomiko Fujii, Michiko Katayama, Teruhisa Satsuki, Sachiko Abe
Rok vydání:	1997
Předmět:	chemistry.chemical_compound Chromatography Chemistry Laundry Sodium Sodium sulfate Alkalinity chemistry.chemical_element Sodium silicate Phosphate Sodium carbonate Zeolite
Zdroj:	Journal of Japan Oil Chemists' Society. 46:701-704,716
ISSN:	1884-1996 1341-8327
DOI:	10.5650/jos1996.46.701
Popis:	JIS K 3362 test method is designed for evaluating detergency of household laundry detergents. However, the reference detergent in the method contains 17% of sodium tripolyphosphate (STPP), whereas the most of the detergents in the current market are phosphate-free. In this study we tried to convert the JIS reference detergent into a phosphate-free formulation.When whole STPP in the reference detergent was replaced by zeolite, the detergency became lower. However, after the addition of sodium carbonate for the compensation of the alkalinity of STPP, the detergency recovered to the initial level. Based on the results above, we propose the following formulation as a phosphate-free JIS reference detergent : sodium linear alkylbenzenesulfonate, 15%; zeolite, 17%; sodium silicate, 5%; sodium carbonate, 7%; sodium carboxymethyl-cellulose, 1%; sodium sulfate, balance.
Databáze:	OpenAIRE
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