140-93-2 Usage
Chemical Properties
Light-yellow crystals. Soluble in water.
Deliquescent, decomposes 150C.
Uses
Different sources of media describe the Uses of 140-93-2 differently. You can refer to the following data:
1. Proxan Sodium is used in preparation method of Silica with low heavy metal content and high adsorbability, and its application as carrier of liquid animal nutrition agent of feed additive. used as an herbicide, fortifying agent for certain oils, and flotation reagent for base and precious metal ores; Used as a rubber curing agent and antioxidant, pesticide and fungicide, and high-pressure lubricant additive; Also used for analytical procedures, for froth flotation in soils contaminated with mercury, and in the past as an intermediate for saccharin.
2. Control of annual weeds in bean and pea fields.
Application
Sodium isopropyl xanthate is used as a collector for sulphide minerals in alkaline flotation circuits. Use in acid circuits will lead to the decomposition of the product. It is widely used for copper, it is effective in native metal flotation, and is widely used in precious metal flotation and the selective flotation of polymetallic base metals. Sodium isopropyl xanthate can be used as a collector for oxide minerals of base metals which have previously been treated by sulphidisation. Sodium isopropyl xanthate can be used in either rougher or scavenger flotation.
Hazard
Moderate fire risk. Irritant to skin and
mucous membranes.
Flammability and Explosibility
Flammable
Purification Methods
It crystallises from ligroin/ethanol.
Dosage
Dosage rates of sodium isopropyl xanthate vary from 15 to 150g/t of ore. Sodium isopropyl xanthate is normally added to the pulp before flotation as an aqueous solution of between 3 and 10% by weight. It is recommended that solutions be stored for no longer than 3 days due to the formation of carbon disulphide.
Check Digit Verification of cas no
The CAS Registry Mumber 140-93-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140-93:
(5*1)+(4*4)+(3*0)+(2*9)+(1*3)=42
42 % 10 = 2
So 140-93-2 is a valid CAS Registry Number.
InChI:InChI=1/C4H8OS2.Na/c1-3(2)5-4(6)7;/h3H,1-2H3,(H,6,7);/q;+1
140-93-2Relevant articles and documents
Photocatalytic C-O Bond Cleavage of Alcohols Using Xanthate Salts
Maruo, Yuri,Matsugasako, Tatsuki,Nanjo, Takeshi,Takemoto, Yoshiji
supporting information, (2022/01/15)
The homolytic cleavage of C-O bonds to afford alkyl radicals is an attractive yet challenging transformation in organic synthesis. Herein we describe a photocatalyzed deoxygenative C-C coupling reaction of xanthate salts, which can be easily prepared from the corresponding alcohols. The key to the success of this strategy is the low oxidation potential of the xanthate salt and the use of an appropriate phosphine to accelerate the desulfurative release of carbonyl sulfide.
POLYMERIC MATERIALS FORMED USING INITIATORS WITH A KETONE GROUP AND TWO THIOCARBONYLTHIO-CONTAINING GROUPS
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Page/Page column 49, (2019/09/12)
Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, polymeric materials formed from the reaction mixtures, crosslinkable compositions containing the polymeric materials, crosslinked compositions formed from the crosslinkable compositions, and various articles are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a carbonyl group between the two dithiocarbamate or dithiocarbonate groups.
Mixed ligand zinc(II) and cadmium(II) complexes with alkyl xanthates and 2,2′-bipyridyl
Hussain Reddy,Sambasiva Reddy
, p. 1118 - 1120 (2007/10/03)
Mixed ligand complexes of zinc(II) and cadmium(II) with alkyl xanthates as primary ligands and 2,2′-bipyridyl (bpy) as secondary ligand have been synthesized and characterized by elemental analysis, infrared and 1H NMR spectral data. Infrared spectra reveal that xanthates act as uni- and bidentate ligands in zinc and cadmium complexes respectively. Tetrahedral geometry is assigned for zinc(II) complexes while an octahedral structure for cadmium(II) complexes.