Disodium methylarsenate

Probably the most frequently used method of digestion incorporates the use of nitric and sulphuric acids. Kopp and Bandemar used this method and experienced 91 to 114% recovery of arsenic trioxide added to de-ionized water and 86 to 100% recovery of the compound added to river water. Evens and Bandemar recovered 87% of the arsenic trioxide added to eggs. By modifying the method by the addition of perchloric acid, and Caldwell and coworkers observed 80 to 90% arsenic recovery with o-nitrobenzene-arsonic acid, 85 to 94% with o-arsanilic acid and 76.7% with disodium methylarsenate. 

Disodium methylarsenate Disodium methylarsonate. See Disodium methanearsonate... 

Methyldiiodoarsine has been prepared in a variety of ways treatment of an alcoholic solution of methylarsenic oxide, CH3AsO, with an excess of hydriodic acid,1 passing methylarsine into an alcoholic solution of iodine,2 the action of sulfur dioxide on methylarsenic tetraiodide,3 the action of methyl iodide on arsenic,4 and treatment of a solution of disodium methanearsonate and potassium iodide with hydrochloric acid and sulfur dioxide.6 The following directions are essentially the last method combined with the preparation of the disodium methanearsonate in situ.6,7 The use of an alcoholic medium greatly facilitates the reaction between sodium arsenite and methyl iodide. 

Methyl arachidate. See Methyl eicosanoate Methylarsenic acid, sodium salt. See Sodium acid methanearsonate Methylarsonic acid, disodium salt. See Disodium methanearsonate Methylarsonic acid, monosodium salt. See Sodium acid methanearsonate N-Methyl-D-aspartate. See Methyl aspartic acid Methyl aspartic acid CAS 6384-92-5... 

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