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Thymolblue

Cas:
76-61-9
Molecular Structure:
MDL:
--MFCD00005869
Molecular Formula:
C27H30O5S
Molecular Weight:
466.59
Alias:
麝香草酚藍(lán),百里酚藍(lán),百里香酚磺酞,百里香酚蘭
Product order:
Name Specifications Packing Price Delivery
Thymolblue ACS reagent, 95% 25g RMB 418 Consulting service
Thymolblue ACS reagent, 95% 5g RMB 110 Consulting service
Thymolblue IND 25g RMB 88 Consulting service
Character:
棕綠色結(jié)晶性粉末。有異臭。溶于醇,呈黃色,溶于稀堿呈藍(lán)色,不溶于水。最大吸收波長(zhǎng)420nm。
Quality Standard:
 
  
質(zhì)量標(biāo)準(zhǔn)   
   GB/T 15352-94      
項(xiàng)目Item                                   指示劑級(jí)(IND)
                                          (indicator grade )
pH變色域Visual transition interval        1.2(紅)~2.8(黃)
                                          8.0(黃)~9.6(藍(lán))

質(zhì)量吸收系數(shù)Mass absorptivity,L/(cm.g)    ≥71.0
乙醇溶液試驗(yàn)Solubility in ethanol              合格
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,%    ≤0.3

品級(jí)Grade                               ACS級(jí)  
                                  (ACS reagent, 95 %)
外觀Appearance                          暗綠色至棕色、紅棕色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
染料含量Dye content,                    95%
純度Purity                              221-224 °C  
Wavelength 595 - 599 nm
消光系數(shù)Extinction Coefficient          ≥30000
Wavelength 378 - 382 nm
消光系數(shù)Extinction Coefficient          ≥8000
Wavelength 298 - 302 nm
消光系數(shù)Extinction Coefficient          ≥12000
  c = 0.01g/l, 0.1N NaOH
變色域visual transition interval:
  acid range:                          pH 1.2 (red) to pH 2.8 (yellow)
  alkaline range:                      pH 8.0 (yellow) to pH 9.2 (blue)

Storage:
貯存  密封保存。
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