CAS号:125-20-2
品名:百里香酚酞Thymolphthalein
中文别名:麝香草酚麸;麝香草酚酞;百里酚酞;5',5''-二异丙基-2',2''-二甲基酚酞;
英文别名:1(3H)-Isobenzofuranone,3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-;3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one;
分子式:C28H30O4
分子量:430.535
精确质量:430.214
Psa:66.76
BRN号:359413
EINECS号:204-729-7
MDL号:MFCD00005909
外观与性状:白色结晶粉末
密度:0.92g/mLat 25°C
沸点:571.6ºC at 760 mmHg
熔点:251-253°C(lit.)
闪点:74°F
折射率:1.612
稳定性:Stable under normal shipping and handling conditions.
储存条件:Store at RT.
蒸汽压:1.15E-13mmHg at 25°C
安全说明:S7-S16-S36/37-S24/25-S22
危险类别码:R40
WGK Germany:3
海关编码:29322980
危险品运输编码:UN 1170 3/PG 3
危险类别:3
包装等级:II
危险品标志:Xn
简介:Thymolphthaleinisanacid–base(pH)indicator.ItstransitionrangeisaroundpH9.3–10.5.BelowthispH,itiscolorless;above,itisblue.ThymolphthaleinisusedasavisualindicatorforthepHofswimmingpools,changingthewaterbluewhenthepHincreases,itcanbeusedtodetectthepresenceofurinebeingintroducedintothenormallyneutralpHofthewater.Themolarextinctioncoefficientforthebluethymolphthaleindianionis38,000M−1cm−1at595nm.
用途:1.用作pH值指示剂,变色范围为pH值9.4-10.6,由无色变蓝色。酸碱指示剂,用于血液检验。
滴定