Rachana Intermediates Private Limited

Thymolphthalein CAS:125-20-2 Appearance and properties: white crystalline powder Density: 0.92 g / mL at 25 ° C Boiling point: 571.6ºC at 760 mmHg Melting point: 251-253 ° C (lit.) Flash point: 74 ° F Refractive index: 1.612 Water solubility: insoluble Stability: Stable under normal shipping and handling conditions.


Applications :- 
1) Electronics.
2) Photography.
3) Inks.
4) Paints/Concrete/Rubber/Adhesives/Lubricants.
5)Detergents/Cleaners/Herbicides/Pesticides/Insecticides
6) Personal care and Health/Beauty products
7) Medical
8) Defense/Security/Explosives.

Bromocresol Green Powder is a pH indicator and a triphenylmethane dye used in various analytical applications.
Applications:1. pH indicator in analytical chemistry2. Titration of weak acids and bases3. Detection of carbonate and bicarbonate ions4. Biological staining5. Spectrophotometry

Thymol blue (thymolsulfonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator. It is insoluble in water but soluble in alcohol and dilute alkali solutions.

Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7). A common use is for measuring the presence of carbonic acid in a liquid. It is typically sold in solid form as the sodium salt of the acid indicator.

Bromothymol blue acts as a weak acid in a solution. It can thus be in protonated or deprotonated form, appearing yellow or blue, respectively. It is bright aquamarine by itself, and greenish-blue in a neutral solution. The deprotonation of the neutral form results in a highly conjugated structure, accounting for the difference in color. An intermediate of the deprotonation mechanism is responsible for the greenish color in neutral solution.

Applications :- 
1) Electronics.
2) Photography.
3) Inks.
4) Paints/Concrete/Rubber/Adhesives/Lubricants.
5)Detergents/Cleaners/Herbicides/Pesticides/Insecticides
6) Personal care and Health/Beauty products
7) Medical
8) Defense/Security/Explosives.