CHEMICAL AND PHYSICAL PROPERTIES
Physical Description | Colorless to yellow crystals; [ICSC] Aqueous solution is dark reddish-brown; [CHEMINFO] |
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Color/Form | Colorless to yellow crystals |
Melting Point | 337 °C |
Solubility | Slightly soluble in alcohols, hydroxylic solvents. Practically insoluble in nonpolar organic solvents. |
Density | 1.22 to 1.27 @ 20 °C/20 °C |
Vapor Pressure | 0.00000181 [mmHg] |
LogP | log Kow = -4.60 |
Stability/Shelf Life | Under normal storage conditions, in original containers, shelf life is indefinitely long; dry chem sensitive to UV light. |
Decomposition | When heated to decomposition, diquat dibromide emits very toxic fumes of /nitrogen oxides and hydrogen bromide/. |
Corrosivity | The active ingredient is corrosive to metals. |
Other Experimental Properties | MP: below 320 °C, decomp, also reported as mp 335-340 °C; Sol in water @ 20 °C: 70%; Insol in organic solvents; slightly soluble in alcohol; Max absorption: 308.31 nm (E= 18,000); Stable in acid or neutral soln /Monohydrate/ |
Chemical Classes | Pesticides -> Herbicides, Bipyridyl |
COMPUTED DESCRIPTORS
Molecular Weight | 344.04 g/mol |
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Hydrogen Bond Donor Count | 0 |
Hydrogen Bond Acceptor Count | 2 |
Rotatable Bond Count | 0 |
Exact Mass | 343.93467 g/mol |
Monoisotopic Mass | 341.93672 g/mol |
Topological Polar Surface Area | 7.8 Ų |
Heavy Atom Count | 16 |
Formal Charge | 0 |
Complexity | 183 |
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
Diquat dibromide is a non-selective contact herbicide, algicide, desiccant, and defoliant that produces desiccation and defoliation most often available as the dibromide, diquat dibromide.