Potassium formate - review of properties

December, 2013

Potassium formiate (potassium salt of formic acid) has been widely used in recent years.

Its water solutions do not freeze at temperatures down to minus 600C, as well as maintain lower viscosity than differ significantly from water solutions of glycols.

The table below shows the basic properties of potassium formate and Its water solutions:

Properties

Potassium formate

Clas

Organic salt

Appearance

crystalline powder

Color

White

Solubility in water

Good

Freezing temperature of  50% solution, 0С

-60

Density of  50% solution at 200С, g/cm3

1,340

Kinematic viscosity of 50% solution at +200С, cst

2,10

Kinematic viscosity of 50% solution at -400С, cst

18,9

Specific heat 50% of 50% solution at -400С, kJ/(kg*0С)

2,52

Thermal Conductivity, W/(м*0С)

0,44

Toxicity

Non-toxic