Ammonia

General

Molecular formula

NH3

Main hazard

Toxic and corrosive

Autoignition temperature

651 C

Appearance

Colourless gas with strong pungent odour

Molar mass

17.0304 g/mol

Properties

Density

0,6813 g/L (lighter than air)

Solubility in water

89,9 g/100 ml

Melting point

-77,73 C (195.42 K)

Boiling point

-33,34 C (239,81 K)

Acidity (pKa)

33,6

Basicity pKb)

4,75

Health

4 – Deadly

3 – Extreme danger

2 – Hazardous

1 – Slightly hazardous

0 – Normal materials

Fire

4 – Very Flammable

3 – Readily Ignitable

2 – Ignited with heat

1 – Combustible

0 – Will not burn

Reactivity

4 – May detonate

3 – Shock & heat may detonate

2 – Violent chemical change

1 – Unstable if heated

0 – Stable

Specific Hazard

OXE - Oxidizer

ACID - Acid

ALK - Alkali

COR - Corrosive

W – Use no water