236 °F (NIOSH, 2024)
113.7 °C
113.6 °C
114 °C
236 °F
Boiling Point
365 °F at 760 mmHg (NIOSH, 2024)
184.4 °C
184 °C
365 °F
Density
4.93 (NIOSH, 2024) - Denser than water; will sink
Sp gr = 4.93 (solid at 20 °C); density of the gas: 11.27 g/L
Density at 101.3 kPa: 3.96 at 120 °C (liquid)
Relative density (water = 1): 4.9
4.93
Physical Description
Violet-black crystals with a metallic luster and a sharp odor. Mp: 133.5 °C, bp: 185 °C. Emits toxic vapor at room conditions; vapor becomes visibly purple when its concentration builds up in a confined space. Nearly insoluble in water but very soluble in aqueous solutions of iodides.
Water or Solvent Wet Solid; Other Solid; Pellets or Large Crystals
Violet solid with a sharp, characteristic odor; [NIOSH] Iodide salts are white powders; [ACGIH]
Solid
BLUISH BLACK OR DARK PURPLE CRYSTALS WITH PUNGENT ODOUR.
Appearance
Bluish-black scales or plates; diatomic; violet vapor
Rhombic, violet-black crystals with metallic luster
Bluish-black, lustrous solid
Violet solid.
Heavy, grayish-black plates or granules having a metallic luster
State
Solid
Computed Properties
Structural Parameters
Heavy atom count
2
Molar refractivity
28.04
TPSA
0.0000
LogP / Solubility
WLOGP
1.77
MLOGP
1.57
XLogP3
1.7
Consensus LogP
1.68
Log S (ESOL)
-2.53
Class (ESOL)
Moderately soluble
Log S (Ali)
-2.92
Class (Ali)
Moderately soluble
Log S (SILICOS-IT)
-2.78
Class (SILICOS-IT)
Moderately soluble
ADME
GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.01
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
Yes
Synthetic Accessibility
1
Safety & Transport
Pictogram(s)
Irritant
Environmental Hazard
Health Hazard
Acute Toxic
Signal
Warning
Danger
GHS Hazard Statements
H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H302+H312+H332 (24.1%): Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]
H302 (40.5%): Harmful if swallowed [Warning Acute toxicity, oral]