
THIO-RED, upon contact with metals in contaminated soils, sludges, ash and sediment, reduces multiple valence metals to their lowest valence state, and renders all metals insoluble as stable, nontoxic, organo-metallic complexes. They will not leach …
Chemistry and environmental implications of thio-red and 2,4,6 ...
CS32-, HS-, and S2- are the dominant sulfur species in Thio-Red®. They precipitate heavy metals from water as sulfides (e.g., HgS, PbS, and ZnS). Thio-Red® also contains traces of poisonous carbon disulfide (CS2).
Thio-Red? precipitates stable metal thiocarbonates (MCS3, where M = Pb2+, Cu2+, Ni2+, Cd2+, Zn2+, or other divalent heavy metals), which may be produced through the following
Effectiveness of commercial reagents for heavy metal removal …
2002年5月27日 · Previous laboratory studies have demonstrated that Thio-Red ® ultimately removes copper, mercury, lead, and cadmium from aqueous solutions through the formation of metal sulfides (that is, CuS, HgS, PbS, and ZnS) rather than metal thiocarbonates (that is, CuCS 3, HgCS 3, PbCS 3, and ZnCS 3) as originally expected [6], [12].
重金属捕集剂应用概述 - 百度文库
STC(三硫代碳酸钠)是一种硫代碳酸盐,它的商品名是Thio—Red,外观为橘红色液体,STC最常用的合成方法是用二硫化碳和氢氧化钠反应,方程式为: 3CS2+6NaOH—>2Na2CS3+Na2C03+3H20。
Organic reagents for removing heavy metals from a 10-34-0 (N-P
Trisodium trithiocyanuric acid (TMT-15), sodium trithiocarbonate (5% Na2CS3), and sodium polythiocarbonate (Thio-Red II) were evaluated as precipitating agents for heavy metals in a 10-34-0 (N-P2O5-K2O) grade fertilizer solution and WPA.
Hydropolysulfide,carbonothioylbis-, disodium salt | 128578-22-3
2024年12月18日 · Hydropolysulfide,carbonothioylbis-, disodium salt (CAS 128578-22-3) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
WST Metal Ion Precipitants For Industrial Wastewater Treatment
Thio-Red: Basic polythiocarbonate organic compound that forms organo-metallic precipitates. TR-5 : Blend with allied compounds and coagulant for mixed metals applications. TR-6 : Blend with inorganic compounds and multiple coagulants for mixed metals applications.
A Safe Replacement for DTC - Water Specialists Environmental …
Thio-Red, a patented metal precipitant, is being used by metal plating plants with great success to safely precipitate mixed chelated metals from discharge waters. In addition to being much less toxic than DTC, Thio-Red offers these additional advantages: Generates up to 50% less sludge than DTC, Lime or Iron chemistries
Water Environment Research - Wiley Online Library
1998年9月1日 · Thio-Red ® is a commercial product that is widely used to precipitate divalent heavy metal contaminants from water. To gain a better understanding of how Thio-Red ® reacts with dissolved divalent metals, the product was added to laboratory aqueous solutions, each of which contained one of several dissolved copper, lead, mercury, and zinc ...