Appearance

Clear & Colourless

Water (max)

Wt. 2000 ppm

Formic Acid (max)

Wt. 1000 ppm

Total Chloride (max)

Wt. 15 ppm

Total Iodide & CH₃I (max)

Wt. 10 ppm

Acetaldehyde (max)

Wt. 500 ppm

Heavy Metals as Pb (max)

Wt. 2 ppm

Propionic Acid & Higher Organic Acid (max)

Wt. 200 ppm

Freezing Point (min)

16 Deg C

Solubility in Water (max)

Clear & Free

Non. Volatile (max)

Wt. 50 ppm

Colour

Below 10 Alpha units

Specific Gravity

1.0495 – 1.055

Initial Boiling Point (min)

118 Deg C

Dry Point (max)

120 Deg C

Purity (min)

Wt. 99.50

Iron (max)

Wt. 1 ppm

Sulfate (max)

Wt. 10 ppm

Chemical Name

2-(4-isobutylphenyl) propionic acid

Appearance

White or Almost white crystalline powder

Identification

By UV
By IR
By TLC
Melts bet. 75-78°C

Solubility

Freely soluble in Acetone, chloroform ethanol (95%) & ether, practically insoluble in water. It dissolves in dil. sol. ofalkali hydroxide & carbonate.

Clarity & Colour of Solution

Clear & Colourless

Optical rotation

+0.05 and -0.05°

Heavy Metals

NMT 10 ppm

Sulphated Ash

NMT 0.1% w/w

Related Substances

BY HPLC

Loss on Drying

NMT 0.5% w/w

Assay

NLT 98.5% w/w of C₁₃H₁₈O₂ calculated with reference to the dried substance

Appearance

Colourless

Odour

Pungent, Acetic Smell

Solubility

Freely Soluble in alcohol & acetone

Specific Gravity at 27°C

1.078-1.085

Ester Content (as acetic acid)% by mass

99.1%

Purity

99%

Distillation Range

138-141°C

A) Initial BP at 760 mm HG (min.)

138°C

B) Dry Point at 760 mm HG (max.)

141°C

Appearance

Colourless Liquid

Density

0.895-0.898 gm/ml

Sp. Heat Capacity

0.4969 kcal/kg°C

Thermal Conductivity

0.110 kcal/m hr°C

Viscosity

0.267 cP

Acidity (As Acetic Acid)

0.01%

Residual Order

NIL

Moisture Content

0.1%

Distillation Range

76-78.5°C

Boiling Point

76°C

Drying Point

78.5°C

Purity

99.9%