CALCON CARBOXYLIC ACID, AR GRADE (Patton & Reeders Reagent) is supplied by TM MEDIA.Calcon carboxylic acid (IUPAC name 3-hydroxy-4-[(2-hydroxy-4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2-carboxylic acid and is commonly called Patton and Reeder's Indicator) is an azo dye that is used as an indicator for complexometric titrations of calcium with ethylenediaminetetraacetic acid (EDTA) in the presence of magnesium. Structurally, it is similar to eriochrome blue black R, which is obtained from calconcarboxylic acid by decarboxylation and reaction with sodium hydroxide.

Product features:-

• Molecular Weight - : 438.41
• Appearance - Dark brown to purple to black powder
• Solubility - 10 ppm in ethanol yields a clear reddish violet solution
• Shelf life - 4 years
• Storage temperature - Below 30 deg C

Product specifications:-

• Product Name - CALCON CARBOXYLIC ACID, AR GRADE (Patton & Reeders Reagent)
• Brand Name - TM MEDIA
• Quantity - 5 gm
• Catalogue Number - 1025