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产品名称:
溴甲酚绿钠
分子结构式:
MDL:
--MFCD00148898
分子式:
C21H13Br4NaO5S
分子量:
720.00
别名:
溴甲酚绿钠盐 Bromocresol Blue Sodium Salt Sodium Bromocresol Green 3′,3″,5′,5″-Tetrabromo-m-cresolsulfonphthalein sodium salt
产品订购:
品名 规格 包装 单价 货期
溴甲酚绿钠 ACS reagent, 90 % 25g 308元 咨询客服
溴甲酚绿钠 ACS reagent, 90 % 5g 107.8元 咨询客服
溴甲酚绿钠 98%,高纯级 25g 371.8元 咨询客服
溴甲酚绿钠 98%,高纯级 5g 118.8元 咨询客服
溴甲酚绿钠 IND 25g 140.8元 咨询客服
性状:
熔点:230℃
质量标准:
   
   项目(name)                     指示剂(Ind)
                              (indicator grade)
水溶解试验                        合格
PH变色范围                       3.8(黄色)-5.4(蓝色)
灼烧残渣(以硫酸盐计)             8.5-11.5%


品级Grade                               高纯级  
                                       (High pure)
外观Appearance                          暗绿色至棕色、黑色粉末或结晶
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              98.0 to 105.0 % (以干基计)  
pH变色域Transition interval:            pH 3.8 (yellow) to pH 5.4 (blue)
灵敏性试验Sensitiveness test            Pass

品级Grade                                ACS级  
                                     (ACS reagent, 90 %)
外观Appearance                          暗绿色至棕色、黑色粉末或结晶
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥90.0% (HPLC)
λ                                       614 - 618 nm
                                        c = 0.01g/L, Water
消光系数Extinction Coefficient          ≥25000
λ                                       394 - 406 nm
消光系数Extinction Coefficient          ≥8000  
λ                                       306 - 310 nm
消光系数Extinction Coefficient          ≥10000
pH变色域Transition interval:            pH 3.8 (yellow) to pH 5.2 (blue)
Visual Interval                         Pass
                                        pH 3.8 = Yellow  
Visual Interval                         Pass
                                        pH 4.5 = Green
Visual Interval                         Pass
                                        pH 5.4 = Blue
不溶物Insoluble Matter.                c = 0.1g/100ml; Water

贮存:

用途  PH指示剂(pH 3.8-5.4)。
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