Basic information Description Uses potassium nitrate fertilizer References Safety Related Supplier
Potassium nitrate Structure

Potassium nitrate

Chemical Properties

Melting point 334 °C (lit.)
Boiling point 100 °C750 mm Hg
Density  1.00 g/mL at 20 °C
Flash point 400°C
storage temp.  Store at RT.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
Specific Gravity 2.109
color  white
PH 5.0-7.5 (50g/l, H2O, 20℃)
Odor odorless, cooling pungent salty taste
Water Solubility  320 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,7648
Dielectric constant 5(0.0℃)
Stability Stable. Strong oxidizer - contact with combustible material may cause fire. Incompatible with combustible materials, strong reducing agents.
LogP -0.129 (est)
CAS DataBase Reference 7757-79-1(CAS DataBase Reference)
EPA Substance Registry System Potassium nitrate (7757-79-1)

Safety Information

Hazard Codes  O,Xi,Xn
Risk Statements  8-36/38-36/37/38-22
Safety Statements  26-17-36-7-24/25
RIDADR  UN 3264 8/PG 3
WGK Germany  1
RTECS  TT3700000
TSCA  Yes
HS Code  2834 21 00
HazardClass  5.1
PackingGroup  III
Hazardous Substances Data 7757-79-1(Hazardous Substances Data)
Toxicity LD50 orally in rabbits: 1.166 g anion/kg, Dollahite, Rowe, Southwest. Vet. 27, 246 (1974)

MSDS

Usage And Synthesis