Abstract: A method of treating mercury-contaminated material to obtain a treated product having reduced mercury leachability includes the steps of (a) admixing the mercury-contaminated material with a reagent system comprising calcium sulfide (CaS) and trisodium phosphate (TNaP), wherein the calcium sulfide and trisodium phosphate are preferably provided at a CaS:TNaP ratio of from 2:1 to 1:2, on a dry weight reagent basis, and the reagent system is preferably provided in an amount equal to 0.4% to 5% by weight of the contaminated material; and (b) adding water as needed to achieve a moisture content of at least 5% by weight of the contaminated material.

Abstract: A cross-metathesis process for preparing an ?,?-functionalized olefin, such as methyl 9-decenoate, and an ?-olefin having three or more carbon atoms, such as 1-decene.

Abstract: A process of producing a compound of the following formula (3): wherein R1 is a C1-5 alkyl group, R2 is a halogen atom, a C1-5 alkyl group, a C2-5 alkenyl group, a C2-5 alkynyl group, a C1-5 alkyl group, a C1-5 alkoxy group, a nitro group, or a hydroxy group, wherein multiple R2 may be the same or may be different, and a is an integer of from 0 to 4, comprising reacting a compound of the following formula (2): wherein R2 and a are as defined above with a C1-5-alkanesulfonyl chloride or C1-5-alkanesulfonic acid anhydride followed by hydrolyzing an N,N-disulfonated derivative of compound (3) to the compound of formula (3).

Abstract: The present invention relates to an improved process for the preparation of thiourea. The object of the present invention is to provide an improved process for the preparation of Thiourea using Calcium Cyanamide, carbon dioxide and hydrogen sulphide. The process of the present invention comprises passing a mixture of Carbon dioxide and hydrogen sulphide into a slurry formed by addition of major part of calcium cyanamide charge into water using constant stirring, maintaining alkaline pH at a temperature ranging between ambient to 80° C., stopping the addition of hydrogen sulphide, continuing the slow passing of carbon dioxide and addition of remaining part of calcium cyanamide charge and retaining the reaction mass to complete the secondary reactions to form the product for a period ranging from 2-5 hours and continuing passing of carbon dioxide at an increased rate for effecting decomposition of Ca(SH)2 for a period of 1.

Abstract: The present invention relates to an improved process for the preparation of thiourea. The object of the present invention is to provide an improved process for the preparation of Thiourea using Calcium Cyanamide, carbon dioxide and hydrogen sulphide. The process of the present invention comprises passing a mixture of Carbon dioxide ad hydrogen sulphide into a slurry formed by addition of major part of calcium cyanamide charge into water using constant stirring, maintaining alkaline pH at a temperature ranging between ambient to 80° C., stopping the addition of hydrogen sulphide, continuing the slow passing of carbon dioxide and addition of remaining part of calcium cyanamide charge and retaining the reaction mass to complete the secondary reactions to form the product for a period ranging from 2-5 hours and continuing passing of carbon dioxide at an increased rate for effecting decomposition of Ca(SH)2 for a period of 1.

Abstract: This invention relates to substituted benzenesulfonylureas and -thioureas, processes for their preparation and use of pharmaceutical preparations based on these compounds, and medicaments containing them.Substituted benzenesulfonylureas and -thioureas of the formula I ##STR1## exhibit effects on the cardiovascular system.

Abstract: This invention relates to substituted benzenesulfonylureas and -thioureas, processes for their preparation and use of pharmaceutical preparations based on these compounds, and medicaments containing them.Substituted benzenesulfonylureas and -thioureas of the formula I ##STR1## exhibit effects on the cardiovascular system.

Abstract: This invention relates to substituted benzenesulfonylureas and -thioureas, processes for their preparation, their use as a medicament or diagnostic, and medicament containing them.Substituted benzenesulfonylureas and -thioureas 1 ##STR1## exhibit effects on the cardiovascular system.

Abstract: A process for producing tolylthiourea having high purity comprises reacting toluidine with a thiocyanate and a mineral acid in the presence of an organic solvent and water.