7784-41-0
Product Name:
POTASSIUM ARSENATE
Formula:
AsH2KO4
Synonyms:
Arsenic acid potassium salt;Potassium dihydrogen arsenate
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Potassium arsenate appears as a colorless crystalline solid. Soluble in water and denser than water. Toxic by ingestion and inhalation. An irritant. |
|---|---|
| Color/Form | Colorless crystals or white, crystalline mass or powder |
| Odor | Odorless |
| Melting Point | 550 °F (USCG, 1999) |
| Solubility | Sol in 5.5 parts cold water. Very soluble in hot water. |
| Density | 2.8 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Decomposition | When heated to decomposition it emits toxic fumes of arsenic. |
| Refractive Index | Index of refraction: 1.518 |
| Other Experimental Properties | Heat of solution: 49 BTU/lb= 27 cal/g= 1.1 X 10+5 J/kg |
| Chemical Classes | Metals -> Arsenic Compounds, Inorganic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
![]() Skull and Crossbones Acute Toxicity GHS06 ![]() Health Hazard GHS08 ![]() Environment GHS09 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H331:Acute toxicity,inhalation H350:Carcinogenicity H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P311:Call a POISON CENTER or doctor/physician. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P501:Dispose of contents/container to..… |
COMPUTED DESCRIPTORS
| Molecular Weight | 180.033 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 179.880610 g/mol |
| Monoisotopic Mass | 179.880610 g/mol |
| Topological Polar Surface Area | 80.6 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 61.9 |
| 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
Potassium arsenate appears as a colorless crystalline solid. Soluble in water and denser than water. Toxic by ingestion and inhalation. An irritant.



