CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Ammonium sulfide aqueous solution is a colorless to yellow liquid, with an odor of rotten eggs or ammonia. Can slowly react with water to generate flammable and toxic hydrogen sulfide gas. This reaction is much faster with acid. It may be irritating to skin, eyes and mucous membranes and may cause illness from skin absorption. It may burn and/or emit toxic fumes if heated to high temperatures. |
|---|---|
| Color/Form | Yellow-orange crystals. |
| Odor | Strong odor of rotten eggs and ammonia |
| Boiling Point | 104 °F at 760 mmHg (USCG, 1999) |
| Melting Point | Approximately 0 °C; decomposes |
| Flash Point | 72 °F (USCG, 1999) |
| Solubility | Soluble in water |
| Density | 0.99 to 1.01 at 68 °F (USCG, 1999) |
| Stability/Shelf Life | True sulfide is stable only in absence of moisture & below 0 °C. |
| Decomposition | At high temps decomposes into ammonium bisulfite, ammonia and polysulfides |
| Corrosivity | Corrosive |
| Refractive Index | Index of refraction: 1.467 at 20 °C/D /Ammonium sulfide solution/ |
| Other Experimental Properties | Forms crystals below -18 °C; at high temperatures it decomposes into NH4HS, NH3, polysulfides, etc |
| Chemical Classes | Other Classes -> Sulfur Compounds |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H226:Flammable liquids H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 68.15 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 68.04081944 g/mol |
| Monoisotopic Mass | 68.04081944 g/mol |
| Topological Polar Surface Area | 3 Ų |
| Heavy Atom Count | 3 |
| Formal Charge | 0 |
| Complexity | 0 |
| 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 | 3 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Ammonium sulfide aqueous solution is a colorless to yellow liquid, with an odor of rotten eggs or ammonia. Can slowly react with water to generate flammable and toxic hydrogen sulfide gas. This reaction is much faster with acid. It may be irritating to skin, eyes and mucous membranes and may cause illness from skin absorption. It may burn and/or emit toxic fumes if heated to high temperatures.