文名称:甲酚红中文同义词:甲酚红,游离酸;邻甲酚磺酰酞,邻甲磺酞;甲酚红,INDICATOR;甲酚红,AR;甲酚红/邻甲酚红;甲酚红指示剂;甲酚红;邻甲酚红英文名称:CresolRed英文同义词:Phenol,4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis2-methyl-;CresolRed;CresolRed,Indicatorgrade,pure25GR;CresolRed,IndicChemicalbookatorgrade,pure5GR;CresolRed(0.1%inca.20%Ethanol)[forTitration];3,3-Bis(3-methyl-4-hydroxyphenyl)-3H-2,1-benzoxathiole1,1-dioxide;CresolRed,pure,Indicatorgrade;o-CresolRedp.a.(greenpowder)

 

CAS号:1733-12-6

 

分子式:C21H18O5S

 

分子量:382.43熔点290°C沸点479.59°C(roughestimate)

密度0.98g/mLat25°C

折射率1.5300(estimate)储存条件StoreatRT.

溶解度SolubilitySparinglysolubleinwater;solubleinethanol形态Powder酸度系数(pKa)1.0(at25℃)颜色Darkgreenorbrown-redPH值7.2～8.8

酸碱指示剂变色ph值范围7.2(YELLOW)--8.8(PURPLISHRED)水溶解性soluble最大波长(λmax)570nm,367nm,432nmMerck14,2578BRN34Chemicalbook3399

 

主要应用Displaydevice,opticalsensors,combustiongasdetectionsystem,inks,correctionfluid,diapers,toothpaste,identifyingfreshandstalerice,foodstorage,determineglucoseindialysissolution,monitormetabolicactivityofmicroorganisms,detectbacterialinfection,psychoactivedrugs,dentalimpressionmaterial化学性质带绿色光泽的晶体，磨碎后为红棕色粉末。易溶于醇及稀氢氧化钠溶液，微溶于水。用途酸碱提示剂。用20%乙醇配成0.1%溶液或0.04%水溶液（取0.04Chemicalbookg该品溶于1.05ml0.1MNaOH溶液），再稀释至100ml。pH变色范围：7.2（黄）-8.8（紫红）；2.0（红）-3.0（琥珀色）。用途酸碱指示剂。