S P E C I F I C A T I O N S

BROMOTHYMOL BLUE SODIUM SALT ACS

Synonyms:				3'3"-Dibromothymolsulfonephthalein
Sodium salt

CAS No:				34722-90-2

Chemical Formula:			C27H27Br2O5SNa

Formula Weight:			646.36

Description:				Green to yellow, orange to brown-black powder

Clarity of Solution:			To pass test

Visual Transition Interval:	From pH 6.0 (yellow) 
To     pH 7.6 (blue)

Solubility:				Soluble to 6% in water and in ethanol

Loss on drying
@110 Deg.C/1 hour:			< 5%

Effective: 02/04/09