Title: Octoxynol
CAS Registry Number: 9002-93-1
CAS Name: a-[4-(1,1,3,3,-Tetramethylbutyl)phenyl]-w-hydroxypoly(oxy-1,2-ethanediyl)
Additional Names: octylphenoxy polyethoxyethanol; polyethylene glycol p-isooctylphenyl ether
Literature References: Prepd by reacting isooctylphenol with ethylene oxide. Average number of ethylene oxide units (n) per molecule is indicated by number following octoxynol. See also nonoxynol. Trademarks for series of octoxynols include Igepal CA (Rhone-Poulenc) , Polytergent G (Union Carbide) , Triton X (Rohm & Haas) .
Properties: Mixture in which n ranges from about 5 to 15. Pale yellow, viscous liquid. d425 1.0595. nD25 1.4894. Miscible with water, alcohol, acetone. Sol in benzene, toluene. Insol in petr ether. pH of 5% aq soln: 7-9. Octoxynol-9, average comp. (n = 9): C34H62O11; av mol wt 647. Trademarks of products where n = 9 to 10: Conco NIX-100 (Continental Chem.) , Igepal CA-630 (Rhone-Poulenc) , Neutronyx 605 (Onyx) , Triton X-100 (Rohm & Haas) . Ingredient of Preceptin (Ortho) .
Index of refraction: nD25 1.4894
Density: d425 1.0595
Use: Nonionic detergent, emulsifier, dispersing agent. Octoxynol-9 as spermaticide.

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