CAS 534-18-9

Sodium trithiocarbonate, abbreviated as STC, is an inorganic sulfur compound with molecular formula Na₂CS₃. It is the sodium salt of trithiocarbonic acid, where three oxygen atoms of carbonate are fully substituted by sulfur atoms. Commercial grades are commonly supplied as alkaline reddish-brown aqueous solution. The reactive trithiocarbonate anion gives it strong chelating and precipitating capacity, widely deployed in industrial wastewater remediation and mineral flotation workflows.

As a functional inorganic sulfur reagent, sodium trithiocarbonate achieves its outstanding performance depending on trithiocarbonate anions within its molecular structure. The three sulfur donor sites enable powerful chelating reaction with divalent heavy-metal cations such as copper, lead, zinc, cadmium and mercury. It can generate highly insoluble metal-sulfur precipitates even when target wastewater contains residual chelating agents, which many conventional precipitants cannot handle efficiently. Unlike single inorganic sulfide, properly dosed STC produces fewer toxic volatile by-products under suitable alkaline operating pH, lowering onsite safety risks for plant operators.

Industrial-grade sodium trithiocarbonate mostly appears as reddish-brown transparent liquid with strong alkalinity. It is miscible with water, yet will undergo rapid decomposition and release hazardous hydrogen sulfide gas once exposed to acidic surroundings. Hence pH monitoring is mandatory throughout dosing and storage cycles. Beyond heavy-metal wastewater treatment for electroplating, metallurgy and PCB manufacturing factories, this chemical works as sulfidizing flotation auxiliary for oxide ores in mineral-processing plants. It improves surface hydrophobicity of target minerals and raises metal recovery rate. Additionally, it serves as key sulfur-containing building-block raw material for fine chemical synthesis and polymer-related laboratory research.

As a professional chemical supply-chain vendor, we enforce strict quality control standards for sodium trithiocarbonate industrial-grade solution. Our goods keep stable valid constituent content, strictly controlled carbonate impurity and low insoluble residue. Stable raw-material feeding together with sealed blending procedures minimizes batch-to-batch deviation. Reliable and consistent chemical indexes prevent unstable heavy-metal removal efficiency or poor flotation performance that would cause production losses for end-users.

Purchasers can obtain tangible practical benefits by selecting our supply. First, steady product specifications cut frequent laboratory calibration work for your technical team and reduce material consumption during continuous mass production. Second, we provide full export-oriented documentation including COA and MSDS, simplifying cross-border customs clearance and site safety audit requirements. Third, flexible packaging solutions support both small trial-volume orders and large-scale industrial bulk procurement. Our technical team can offer basic guidance about dosing range and storage precautions when customers meet practical application obstacles.

We fully understand overseas purchasers' major concerns covering product stability, document completeness and safe shipment. This inorganic sulfur solution must remain sealed inside cool, shaded and well-ventilated warehouse space, isolated from acid substances and strong oxidants to avoid decomposition risk. Every consignment will go through pre-shipment inspection before dispatch. We have accumulated rich exporting experience for water-treatment inorganic chemicals and maintain long-term partnerships with multiple mining and environmental-protection manufacturers across global regions, which acts as solid evidence of our supplying competence.

If you are sourcing qualified industrial-grade Sodium trithiocarbonate for heavy-metal wastewater treatment or mineral flotation projects, please send us your inquiry. Kindly inform us of your target effective concentration, packaging requirement and order quantity. Our sales-technical group will reply within 24 hours and deliver competitive quotation plus complete supporting document sets. Sample service is available for laboratory performance evaluation.

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