Synonyms
potassium dihydrogen arsorate; POTASSIUM ARSENATE; Monopotassium arsenate; Arsenic acid, monopotassium salt; Potassium orthoarsenate, monobasic; UN1677; Arsenic acid (H3AsO4), monopotassium salt; Potassium hydrogen arsenate; potassium ion arsenate(1-); CTK8G2511;
IUPAC Name
potassium;dihydrogen arsorate;
Molecular Weight
180.032g/mol
Molecular Formula
KH2AsO4;KH2AsO4;AsH2KO4;
Canonical SMILES
O[As](=O)(O)[O-].[K+];
InChI
InChI=1S/AsH3O4.K/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+1/p-1;
InChI Key
GVPLVOGUVQAPNJ-UHFFFAOYSA-M;
Melting Point
550 ° F (USCG, 1999);288 deg C;288 °C;
Density
2.8 at 68 ° F (USCG, 1999);2.867;2.9 g/cm³;
Solubility
Sol in 5.5 parts cold water. Very soluble in hot water.;Slowly soluble in 1.6 parts glycerol. Insoluble in alcohol.;Sol in ammonia, acid;Solubility in water, g/100ml at 6 °C: 19 (good);
Color Form
Colorless crystals or white, crystalline mass or powder;COLORLESS TETRAGONAL CRYSTALS;
Complexity
61.9
Covalently-Bonded Unit Count
2
Decomposition
When heated to decomposition it emits toxic fumes of arsenic.;DANGEROUS WHEN HEATED TO DECOMP ... IT EMITS TOXIC FUMES OF ARSENIC /SRP: INCLUDING ARSINE/. /ARSENIC CMPD/;
EC Number
232-065-8
Exact Mass
179.881g/mol
H-Bond Acceptor
4
H-Bond Donor
2
Heavy Atom Count
6
ICSC Number
1210
Monoisotopic Mass
179.881g/mol
Odor
Odorless;
Other Experimental
Heat of solution: 49 BTU/lb= 27 cal/g= 1.1 X 10+5 J/kg;
Topological Polar Surface Area
80.6A^2
UNII
55K74GS94Q
UN Number
1677
