2720-76-5

Basic information

• Product Name: POTASSIUM HEXYLXANTHATE
• Synonyms: POTASSIUM HEXYLXANTHATE;carbonicacid,dithio-,o-hexylester,potassiumsalt;carbonodithioicacid,o-hexylester,potassiumsalt;dithiocarbonicacido-hexylesterpotassiumsalt;hexylpotassiumxanthogenate;potassiumo-hexylxanthate;potassium O-hexyl dithiocarbonate;Dithiocarbonic acid O-hexyl S-potassium salt
• CAS NO: 2720-76-5
• Molecular Formula: C₇H₁₃OS₂*K
• Molecular Weight: 216.41
• EINECS: 220-331-6
• Mol File: 2720-76-5.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 211.7°C at 760 mmHg
• Flash Point: 81.9°C
• Appearance: /
• Vapor Pressure: 0.261mmHg at 25°C
• CAS DataBase Reference: POTASSIUM HEXYLXANTHATE(CAS DataBase Reference)
• NIST Chemistry Reference: POTASSIUM HEXYLXANTHATE(2720-76-5)
• EPA Substance Registry System: POTASSIUM HEXYLXANTHATE(2720-76-5)

Safety Data

• RIDADR: 3342
• HazardClass: 4.2
• PackingGroup: III
• Hazardous Substances Data: 2720-76-5(Hazardous Substances Data)

Usage

General Description

Potassium hexylxanthate is a chemical compound commonly used as a flotation agent in the mining industry for the separation of minerals from their ores. It is an organosulfur compound with the chemical formula C6H11OCS2K. Potassium hexylxanthate works by binding to the surface of minerals, allowing them to be attracted to air bubbles and separated from the non-valuable components of the ore. It is known for its high efficiency in the flotation process and is widely used in the extraction of copper, lead, zinc, and other valuable minerals from their respective ores. However, it is important to handle potassium hexylxanthate with caution as it can be harmful if ingested or inhaled and may cause skin and eye irritation.

InChI:InChI=1/C7H14OS2.K/c1-2-3-4-5-6-8-7(9)10;/h2-6H2,1H3,(H,9,10);/q;+1/p-1

Upstream product

• 75-15-0 carbon disulfide 
• 111-27-3 hexan-1-ol 

Downstream Products

• 3756-05-6 O-Hexyl-S-(4-brom-phenacyl)-dithiocarbonat 
• 75-15-0 carbon disulfide 
• 111-27-3 hexan-1-ol 

Relevant articles and documents

Effect of Varying Alkyl Chain Length on Thermal Decomposition Temperature of Zinc(II) Xanthates and its Impact on Curing of Epoxy Resin

Linear and branched zinc(II) xanthates with varying alkyl chain length were synthesized and characterized by 1H NMR, 13C NMR, and IR spectroscopy, as well as elemental analysis. Zinc sulfide as the final decomposition product upon thermal annealing of zinc(II) xanthates was confirmed by XRD analysis. Cure time for epoxy resin composite at various temperatures was analyzed employing zinc(II) xanthates (5 % mass) as latent cure catalysts. XRD investigation of the cured epoxy resin including zinc(II) xanthates upon thermal annealing revealed the presence of ZnS in-situ in the composite matrix, indicating the in-situ thermal decomposition of zinc(II) xanthates as probable mechanism for curing. Thermogravimetric analysis was performed to investigate the thermal decomposition temperature trend of zinc(II) xanthates. A parallel trend was observed correlating the thermal decomposition temperature trend of zinc(II) xanthates and the order of curing catalytic efficiency utilizing zinc(II) xanthates. In the case of linear alkylzinc(II) xanthates with an increase in the alkyl chain length, both thermal decomposition temperature and the cure time were enhanced. In contrast, in case of branched alkyl chain zinc(II) xanthates with increasing alkyl chain length show decreasing thermal decomposition temperature as well as cure time.

Preparation method of xanthate

The invention discloses a preparation method of xanthate. According to the preparation method, tetrahydrofuran is taken as the reaction medium, monohydric alcohol or dihydric alcohol and caustic alkali carry out reactions at a temperature of 0 to 30 DEG C, finally desolvation is performed to obtain high purity xanthate, and the yield is high. The obtained xanthate has the advantages of little odor, higher purity, and higher yield, and is especially suitable for being used to prepare high grade xanthate with a carbon chain having a carbon number of 6 or more, ethyl xanthate, and dixanthate.