Wholesale Price Thymolphthalein 99% for pH Indicator CAS 125-20-2

• CAS No.: 125-20-2
• Formula: C28h30o4
• EINECS: 204-729-7
• Classification: Organic Analytical Reagents
• Grade: Ind
• Specific Usage: For Biological Purpose
• Model NO.: IND
• Content: 99%
• Usage: Laboratory Reagents
• Source: Concrete
• Habit Appellation: Special Reagent
• Application: Scientific Research
• Property: Organic Reagent
• Melting Point: 251-253
• Molecular Weight: 430.544
• Appearance: White Powder
• Water Solubility: Insoluble
• Boiling Point: 571.6
• Transport Package: 25 Kgs Fiber Drums
• Specification: 1kg 5kg 25kgs
• Trademark: Sinochembt
• Origin: Shenyang
• HS Code: 2932209090
• Production Capacity: 5000 Kgs Per Month

Product Description

Thymolphthalein is a phthalein dye used as an acid-base (pH) indicator.
Its transition range is around pH 9.3-10.5. Below this pH, it is colorless; above, it is blue.

Items:	Requirements:	Results:
Melting range ºC	251.0-255.0	252
PH Change Range	9.3(Colorless)-10.5(Blue)	Qualified
Solubility in alcohol	Clear	Qualified
Sulfated ash, percent	0.1% Max	0.08%
Solubility	Qualified	Qualified