140-93-2 Usage
Description
Proxan sodium, also known as sodium isopropyl xanthate, is a light-yellow crystalline compound that is soluble in water and exhibits deliquescent properties. It decomposes at 150°C and is commonly used in various industrial applications due to its unique chemical properties.
Uses
1. Silica Preparation:
Proxan sodium is used in the preparation method of silica with low heavy metal content and high adsorbability. It is also utilized as a carrier for liquid animal nutrition agents in the feed additive industry.
2. Agriculture:
In the agricultural sector, Proxan sodium serves as an herbicide and is employed for the control of annual weeds in bean and pea fields.
3. Oil Industry:
It is used as a fortifying agent for certain oils, enhancing their quality and performance.
4. Mining:
Proxan sodium acts as a flotation reagent for base and precious metal ores, improving the efficiency of the extraction process.
5. Rubber Industry:
It is used as a rubber curing agent and antioxidant, contributing to the production of high-quality rubber products.
6. Pesticides and Fungicides:
Proxan sodium is utilized in the formulation of pesticides and fungicides, helping to protect crops from various pests and diseases.
7. Lubricant Additive:
It is also used as a high-pressure lubricant additive, enhancing the performance of lubricants in demanding applications.
8. Analytical Procedures:
Proxan sodium is employed in various analytical procedures, contributing to accurate and reliable results.
9. Environmental Applications:
It is used for froth flotation in soils contaminated with mercury, aiding in the remediation of contaminated sites.
10. Historical Use:
In the past, Proxan sodium was used as an intermediate for the production of saccharin, a widely used artificial sweetener.
11. Flotation in Mining:
Sodium isopropyl xanthate, a form of Proxan sodium, is used as a collector for sulphide minerals in alkaline flotation circuits. It is widely used for copper and effective in native metal flotation, as well as in precious metal flotation and the selective flotation of polymetallic base metals. It can also be used as a collector for oxide minerals of base metals that have been previously treated by sulphidisation, and can be employed in either rougher or scavenger flotation processes. However, it is important to note that using it in acid circuits may lead to the decomposition of the product.
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.