U.S. EPA registered pesticide info
'Em 1400 (sodium Arsenite Solution) Non-selective Weed & Brush Killer' is an herbicide. Its Federal EPA registration number is: 5-31. It was originally approved by EPA on 22 Mar 1969. Its registration got cancelled on 28 Jan 1987. It has a 'Danger' signal word. It has the following active ingredients: Sodium arsenite. It's approved for 11 sites including bridges, lumber yards, parking areas, parks, pre-paving treatment, railroads, refineries, rights-of-way, roadways, and storage yards. It is also approved for 3 pests and pest groups including but not limited to annual weeds, grasses, and perennial weeds.