Physical properties of ethylhexylglycerin

Appearance and Odour: The state of a chemical has a big impact on its exposure route and distribution behavior in various environmental compartments. Usually, the state (solid, liquid, gas) for a chemical under normal conditions; 10 ml of the sample was taken in a 50 ml Nessler’s cylinder and was placed over white surface. It was then observed transversally in diffused light for the presence of foreign matters followed by observing odour with odour strips.

Density and Refractive Index: The density and Refractive index of the material was measured with Rudolph Research Analytical DMDM 2911 / J457 instruments at 20 °C.

Water Content: Water content in the sample was determined by Karl fisher titration using methanol. Karl Fischer reagent was first standardized and then KF standardization factor was calculated using the following formula:

Factor (mg/ml) = Weight of the water taken in g × 1000 / Volume of KFR consumed

With the freshly prepared KF reagent, sample is dissolved in methanol and titrated with KF reagent. The moisture/water content is then calculated using the formula:

Water / Moisture content (%) = V × F × 100 / W × 1000

Where, V: Volume of Karl Fischer reagent consumed in the titration (ml).

F: Factor of freshly standardized Karl Fischer reagent (mg / ml).

W: Actual quantity of the sample taken (g or ml).

Boiling Point: The boiling point of Ethylhexylglycerin was determined in the laboratory by placing the 100 ml of sample in round bottom flask. It was then heated to observe bubbles flowing out of the tube. The contents of the tube were then allowed to cool and the temperature at which the liquid starts to flow into the tube was recorded as the boiling point.

Flash Point: Set a flash Series 3 instrument is used for closed cup. It is sealed with a lid through which the ignition source can be introduced periodically.