CAS号:7785-84-4
品名:三偏磷酸钠SodiumTrimetaphosphate
中文别名:磷酸三间酯;
英文别名:Sodiumtrimetaphosphate;
分子式:Na3O9P3
分子量:305.885
精确质量:305.845
Psa:177.51
RTECS号:OY4025000
UNII号:3IH6169RL0
外观与性状:白色结晶粉末
密度:2.49
熔点:588ºC
储存条件:Keep in a cool, dry location in a closed container.
WGK Germany:2
海关编码:2835399000
简介:Sodiumtrimetaphosphate(alsoSTMP),withformulaNa3P3O9,isametaphosphateofsodium.IthastheempiricalformulaNaPO3.Itisthesodiumsaltoftrimetaphosphoricacid.Itisacolourlesssolidthatfindsspecialisedapplicationsinfoodandconstructionindustries.STMPispreparedbyheatingsodiumpolyphosphateatafewhundreddegrees.;Althoughdrawnwithaparticularresonancestructure,thetrianionhasD3dsymmetry.
用途:1.淀粉改性剂;果汁浑浊防止剂;保水剂;水质软化剂;肉类粘结剂;分散剂;稳定剂(用于冰淇淋、干酪等);能防止食品变色与维生素C分解等。也用作水质软化剂。
钠