Sodium dibutyldithiocarbamate

Catalog NumberHG136301

CAS Number136-30-1

CategoryAnionic Surfactants

Synonyms

Carbamic acid, dibutyldithio-, sodium salt

Molecular Weight

227.37

Molecular Formula

C9H18NNaS2

Appearance

Solid

Application

Vulcanization accelerator in rubber.; Use as antifouling agent.

Active Content

95%

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Case Study

Sodium Dibutyldithiocarbamate as a Flotation Co-Collector for Tin-Sulphide Ore Tailings

Matveeva, T. N., et al. Journal of Mining Science 54.6 (2018): 1014-1023.

Sodium dibutyldithiocarbamate (DBDTC) was studied as a complexing co-collector to enhance the flotation recovery of nonferrous and noble metals from old tin-sulphide ore tailings.
Experimental Protocol: Old tailings from the Mining and Processing Plant were characterized by analytical scanning electron microscopy and UV-visible spectrophotometry. Samples were ground in a roller mill to 70-80% of -0.063 mm (200 g batch, 10 min, 1 kg ball charge, 50 mL water). Flotation was performed in a laboratory Mekhanobr machine with a 0.75 L cell using potassium butyl xanthate (ButX) and DBDTC as collectors and methylisobutylcarbinol (MIBC) as frother (100 g/t); flotation time was 3 min with 1 min agitation per reagent, in rough and recleaning circuits.
Performance Evaluation: UV spectrometry showed that the characteristic DBDTC peaks at 259 and 281 nm and the xanthate peak at 301 nm disappeared after contact with the tailings, indicating practically complete reagent adsorption (residual concentration zero). At a DBDTC:ButX ratio of 1:3, copper recovery reached 92.4% and silver recovery 78.2%, with copper in the tailings reduced to 0.08% (copper loss 4.6%, the minimum obtained). DBDTC addition also increased lead and zinc recovery by 5-8% on average.

Sodium Dibutyldithiocarbamate for Removing Ni2+ from EDTA-Ni Wastewater

Yan, Pingfang, et al. Journal of Cleaner Production 122 (2016): 308-314.

Sodium dibutyldithiocarbamate (C9) was evaluated, together with shorter-chain homologues, for chelating Ni²⁺ from recalcitrant EDTA-Ni electroplating wastewater.
Experimental Protocol: Simulated pure EDTA-Ni wastewater (7.26 mg/L Ni²⁺) and EDTA-Ni solutions co-existing with Zn²⁺, Fe³⁺, Cu²⁺ or Cr⁶⁺ were prepared from metal salts and EDTA-2Na at a 1:1 molar ratio. For each test, 100 mL was adjusted to pH 7 with 0.1 mol/L H₂SO₄ or NaOH, then 100 mg/L dithiocarbamate was added and stirred at 120 r/min for 15 min; PAC coagulant (100 mg/L) and PAM coagulant aid (2.5 mg/L) were added with gentle stirring (70 r/min, 2 min) before 30 min settling. Residual metals were measured by flame atomic absorption spectrometry, and precipitates were analysed by FT-IR and SEM.
Performance Evaluation: Ni²⁺ removal increased with carbon-chain length (C9 > C5 > C3), and the S-H group was identified as the key capture site; for the multi-metal solution, doubling the C9 dose left Fe³⁺ 0.20 mg/L, Zn²⁺ 0.089 mg/L, Cu²⁺ 0.00 mg/L, Ni²⁺ 0.40 mg/L and Cr⁶⁺ 0.39 mg/L. In actual electroplating wastewater, C9 gave Fe 0.70, Zn 0.67, Cu 0.030, Ni 0.063 and Cr 0.85 mg/L, all meeting the GB21900-2008 limits.

• Synonyms: Carbamic acid, dibutyldithio-, sodium salt
• Molecular Weight: 227.37
• Molecular Formula: C9H18NNaS2
• Appearance: Solid
• Application: Vulcanization accelerator in rubber.; Use as antifouling agent.
• Active Content: 95%