6484-52-2
Product Name:
Ammonium nitrate
Formula:
H4N2O3
Synonyms:
Ammonium nitrate;Nitric acid ammonia, Ammonia nitrate
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Ammonium nitrate is commercially available both as a colorless crystalline solid and processed into prills for specific applications. Soluble in water. Does not readily burn but will do so if contaminated with combustible material. Accelerates the burning of combustible material. Produces toxic oxides of nitrogen during combustion. Used to make fertilizers and explosives, and as a nutrient in producing antibiotics and yeast. |
|---|---|
| Color/Form | White hygroscopic crystals; orthorhombic |
| Odor | Odorless |
| Boiling Point | Decomposes at 200-260 °C |
| Melting Point | 337.8 °F (USCG, 1999) |
| Solubility | 213 g/100 g water at 25 °C |
| Density | 1.72 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Pressure | 2.3 kPa at 20 °C in water solution; 1.5 kPa at 20 °C in saturated NH4NOs solution |
| Stability/Shelf Life | Stability during transport: If heated strongly, decomposes, giving off toxic gases and gases which support combustion. Undergoes detonation if heated under confinement. |
| Autoignition Temperature | Not flammable (USCG, 1999) |
| Decomposition | Decomposes @ 210 °C, with evolution of nitrous oxide. |
| pH | 0.1 M solution in water: 5.43 |
| Other Experimental Properties | Decomposition begins above 170 °C |
| Chemical Classes | Nitrogen Compounds -> Nitrates and Nitrites |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Flame Over Circle Oxidizers GHS03  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H272:Oxidising liquids;Oxidising solids H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P220:Keep/Store away from clothing/…/combustible materials. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 80.044 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 80.02219199 g/mol |
| Monoisotopic Mass | 80.02219199 g/mol |
| Topological Polar Surface Area | 63.9 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 18.8 |
| 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 | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Ammonium nitrate is commercially available both as a colorless crystalline solid and processed into prills for specific applications. Soluble in water. Does not readily burn but will do so if contaminated with combustible material. Accelerates the burning of combustible material. Produces toxic oxides of nitrogen during combustion. Used to make fertilizers and explosives, and as a nutrient in producing antibiotics and yeast.