| 摘要 |
PROBLEM TO BE SOLVED: To provide sodium-2,2'-methylenebis(4,6-di-t-butylphenyl)phosphate compound having X-ray diffraction peaks in specific ranges, exhibiting good handleability in use and useful e.g. as a crystallizing agent for crystalline polymer compound such as polyolefin, polyester and polyamide. SOLUTION: The objective compound of formula ((n) is 0-5) has X-ray diffraction peaks at diffraction angles (2θ) within the ranges of 5.00-6.00 deg. and 13.00-14.00 deg.. A compound of formula wherein the value (n) satisfies 0<n<=5 can be produced e.g. by dropping an aqueous solution of sodium hydroxide to 2,2-methylenebis(4,6-di-t-butylphenyl)phosphate to precipitate the hydrate. When (n) is zero, the compound can be produced by removing the crystal water from the above hydrate e.g. by heating the hydrate in an organic solvent or without using a solvent.
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