CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Picric acid, [dry] appears as yellow crystals. An explosive. Specific gravity 1.767. Melting point 251.2 °F (121.8 °C). Explodes at 572 °F. Toxic by ingestion. |
|---|---|
| Color/Form | Pale yellow crystals |
| Odor | Odorless |
| Taste | Intensely bitter |
| Boiling Point | Explodes above 572 °F (NIOSH, 2023) |
| Melting Point | 252 °F (NIOSH, 2023) |
| Flash Point | 302 °F (NIOSH, 2023) |
| Solubility | 1 % (NIOSH, 2023) |
| Density | 1.76 (NIOSH, 2023) - Denser than water; will sink |
| Vapor Density | 7.9 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1 mmHg at 383 °F (NIOSH, 2023) |
| LogP | log Kow = 1.44 |
| Henry's Law Constant | Henry's Law constant = 1.7X10-8 atm-cu m/mol at 25 °C |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Autoignition Temperature | 572 °F (NTP, 1992) |
| Decomposition | Hazardous decomposition products formed under fire conditions - Carbon oxides, nitrogen oxides (NOx). |
| Corrosivity | Attacks common metals, except for aluminum and tin |
| Heat of Combustion | Solid: -611.8 Kcal/mol at 20 °C |
| Refractive Index | Index of refraction: 1.763 at 25 °C/D |
| Dissociation Constants | pKa = 0.42 at 24 °C |
| Other Experimental Properties | Can react vigorously with oxidizing and reducing materials; very unstable; severe explosion hazard when shocked or exposed to heat |
| Chemical Classes | Other Uses -> Explosives |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Exploding Bomb Explosives GHS01  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H201:Explosives |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P230:Keep wetted with … P250:Do not subject to grinding/shock/…/friction. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
COMPUTED DESCRIPTORS
| Molecular Weight | 229.10 g/mol |
|---|---|
| XLogP3 | 0.9 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 0 |
| Exact Mass | 228.99709944 g/mol |
| Monoisotopic Mass | 228.99709944 g/mol |
| Topological Polar Surface Area | 158 Ų |
| Heavy Atom Count | 16 |
| Formal Charge | 0 |
| Complexity | 292 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Picric acid, [dry] appears as yellow crystals. An explosive. Specific gravity 1.767. Melting point 251.2 °F (121.8 °C). Explodes at 572 °F. Toxic by ingestion.