What is the use of potassium ethyl xanthate?

What is the use of potassium ethyl xanthate?

Potassium ethyl xanthate is used in the mining industry as flotation agent for extraction of the ores of copper, nickel, and silver. The method exploits the affinity of these “soft” metals for the organosulfur ligand. Potassium xanthate is a useful reagent for preparing xanthate esters from alkyl and aryl halides.

What is ethyl xanthate used for?

Sodium ethyl xanthate is used in the mining industry as a flotation agent. A closely related potassium ethyl xanthate (KEX) is obtained as the anhydrous salt.

What is the formula of potassium ethyl xanthate?

Potassium ethyl xanthate/Formula

What is the function of potassium ethyl xanthate in froth floatation process?

The function of potassium ethyl xanthate in froth floatation process is to make the ore Water repellant. The metallic ore particles are preferentially wetted by the oil and rise to the surface along with the froth.

What is Xanthate Ester?

Xanthate usually refers to a salt with the formula ROCS − 2M + (R = alkyl; M+ = Na+, K+), thus O-esters of dithiocarbonate. The name xanthates is derived from Greek ξανθός xanthos, meaning “yellowish, golden”, and indeed most xanthate salts are yellow.

Are sulphide ores water soluble?

Sulphide ores are water soluble.

Is potassium amyl xanthate corrosive?

In the presence of moisture (perspiration, humidity, tears), the dust dissolves to form a corrosive solution which may cause burns. (3) Potassium Amyl Xanthate may cause symptoms of skin irritation such as reddening, swelling, rash, scaling, or blistering. May cause defatting, drying and cracking of the skin.

What is Pax chemical?

POTASSIUM AMYL XANTHATE (PAX) is a yellowish or pale grey powder or pellet with a pungent odour, soluble in water.

What is the purpose of addition of NACN during froth flotation?

Hint: In the Froth flotation process, depressants help to separate two sulphide ones by selective prevention of froth formation by one ore and allowing the other to come info froth. Sodium cyanide is added so that it can form complex with the unwanted sulphide so that wanted sulphide ore can be easily extracted.

Why pine oil is used in froth flotation?

In the froth floatation process, pine oil is used because it attracts the impurities from the ore. Also, the chemical constituents of pine oil that is cyclic terpene alcohols make it hydrophobic thereby reducing the affinity of pine oil towards the water.

What is xanthate process?

Xanthate salts are produced by the treatment of an alcohol, alkali, and carbon disulfide. The process is called xanthation. In chemical terminology, the alkali reacts with the alcohol to produce an alkoxide, which is the nucleophile that adds to the electrophilic carbon center in CS2.

What is the chemical formula for potassium ethyl xanthate?

Potassium ethyl xanthate (KEX) is an organosulfur compound with the chemical formula CH 3 CH 2 OCS 2 K. It is a pale yellow powder that is used in the mining industry for the separation of ores. Unlike the related sodium ethyl xanthate, the potassium salt exists as an anhydrous salt.

How is potassium ethyl xanthate prepared in situ?

Production and properties. Xanthate salts are prepared by the action of alkoxides on carbon disulfide. The alkoxide is often generated in situ from potassium hydroxide: Potassium ethyl xanthate is a pale yellow powder that is stable at high pH but rapidly hydrolyses at pH <9 at 25 °C.

What are the hazard codes for potassium ethylxanthate?

The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. Flam. Sol. 1 (51.81%) Skin Irrit. 2 (98.8%) Acute Tox. 4 (48.19%) STOT SE 3 (93.98%)