Propyl Paraben I.p. - 25 Kg, White Crystalline Powder, Odourless Antimicrobial Preservative

Details :
Chemical Name : Propyl Paraben I.P.
Molecular Formula: C10H12O3
Molecular Weight : 180.20
CAS Number : 94-13-3
Packing : 25 Kg, 20kg(4 x 5 kg)
The Shelf-life : 5 years
Storage conditions Store in a well-
and precautions closed containers.
Use Antimicrobial Preservative

1.Description
White crystalline powder; odourless.

2.Solubility
Freely soluble in ethanol (95%), in acetone, in ether and in Methanol; very slightly soluble in water.

3.Identification
A.The light absorption in the range 230 to 360 nm of a 0.0005% w/v in ethanol (95%) exhibits a maximum at about 258 nm, absorbance at about 258 nm, 0.44 to 0.47

B. To about 10 mg in a test tube add 1 ml of sodium carbonate solution, heat to boiling for 30 seconds and cool (solution A) .To a further 10 mg in a test tube add 1 ml of sodium carbonate solution, the substance partly dissolves (solution B). Add at the same time to each of solutions A and B 5 ml of aminophenazone solution and 1 ml of potassium ferricyanide solution and mix. Solution B is yellow to orange brown. Solution A is orange to Red and the colour is clearly more intense than any similar colour that may be obtained with solution B..

4.Appearance of solution
A 10% w/v solution in ethanol (95%) is clear or not more opalescence than Opalescence standard OS1 prepared by 5.0 ml of Opalescence standard & 95 ml of water.