メチルチモールブルー 化学特性,用途語,生産方法
外観
褐色~黒色の粉末又は結晶性粉末
用途
キレート滴定指示薬。
化学的特性
green-brown crystalline powder
使用
Methylthymol Blue sodium salt is used as thymol-containing organic dye. It is used as an indicator for complexometry. It is used in determination of sulfate in rainwater. It combines with silica gel and aids in the separation and preconcentration of trace amounts of heavy metals from some salts.
純化方法
Methyl Thymol Blue, sodium salt [1945-77-3] M 844.8, 1.89 x 104 at 435nm, pH 5.5, 252525 25 25 25 25pK 1 3.0, pK 2 3.3, pK 3 3.8, pK 4 7.4 (pK 4 7.2) , pK 5 11.5 pK 6 13.4. The starting material for synthesis is Thymol Blue. Purify it as for Xylenol Orange on in “Heterocyclic Compounds”, Chapter 4. [Tereshin et al. J Anal Chem USSR (Engl Trans) 20 1138 1965, K.rbl & Kakác Collect Czech Chem Commun 23 889 1958, Beilstein 19/8 V 2830.]
メチルチモールブルー 上流と下流の製品情報
原材料
準備製品