What is xanthate used for?

What is xanthate used for?

Xanthates are a group of chemicals typically used in sulphide flotation in mining applications.

What is xanthate made of?

xanthate, any of a class of organic salts formed by treatment of an alcohol with carbon disulfide in the presence of an alkali.

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 formula of xanthate?

Ethylxanthate

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.

Why is ethyl xanthate used in froth flotation?

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. Other oils used are pine oil, eucalyptus oil and fatty acids.

What are xanthate esters?

Xanthate esters, also known as 0,S-dialky dithiocarbonates, are yellow foul smelling compounds that are useful in a variety of chemical processes.

What is cellulose xanthate?

Definition of cellulose xanthate

: any of several colorless esters obtained usually as alkali salts in the form of orange-colored crumbs by xanthation of alkali cellulose with carbon disulfide as a step in the manufacture of viscose.

Is potassium amyl xanthate toxic?

Exposure to this chemical may have acute or chronic health effects. According to the MSDS of Potassium Amyl Xanthate, it can cause acute oral toxicity. It is very harmful if ingested or in contact with skin. It can cause serious eye and skin irritation.

What happens when potassium amyl xanthate Burns?

What is the role of pine oil 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 collector in froth flotation?

A collector is such a type of organic compound that selectively attaches to the surface of the minerals and adds water repelling nature to the particles, a very critical factor for the adhesion of mineral particles to the air bubble.

What is sodium isopropyl xanthate?

Sodium Isopropyl Xanthate is also known as SIPX and its chemical formula is (CH3)2CHOCSSNa. It is a water soluble, pale yellow powder. This chemical has many industrial uses but it is most commonly used in mining industries as a flotation reagent. Sodium Isopropyl Xanthate (SIPX).

What is Chugaev reaction explain with an example?

The Chugaev elimination is a chemical reaction that involves the elimination of water from alcohols to produce alkenes. The intermediate is a xanthate. It is named for its discoverer, the Russian chemist Lev Aleksandrovich Chugaev (1873-1922), who first reported the reaction sequence in 1899.

What material is viscose?

Viscose is a semi-synthetic type of rayon fabric made from wood pulp that is used as a silk substitute, as it has a similar drape and smooth feel to the luxury material. The term “viscose” refers specifically to the solution of wood pulp that is turned into the fabric.

Is potassium amyl xanthate flammable?

Special Hazards: Solid xanthates are stable when kept cool and dry. Exposure to heat and moisture can cause decomposition to flammable and explosive vapor of carbon disulfide. Since xanthates decompose in solution, even at room temperature, fire and explosion hazards can develop with aging.

Which oil is added in froth floatation process?

Pine oil
Pine oil is added in the froth flotation method to create froth or bubble so that metal can be purified easily because pine oil prevents the ore from gangue for further mixing. Pine oil also acts as the best substance for forming froth for the minerals. It also increases the non-wettability of mineral particles.

Is pine oil a frother?

Pine oil enhances non-wettability of the mineral particles. So, it is used as frothier in froth-flotation process.

Why pine oil is used in froth flotation?

Which ore is used in froth flotation?

sulphide ores
Types of ores that can be concentrated by froth flotation method are sulphide ores. Examples are PbS (sulphide galena) and ZnS (zinc blende).

What is pyrolytic elimination reaction explain with examples?

The pyrolytic decomposition of esters is an example of a thermal syn elimination. When subjected to temperatures above 400 °C, esters containing β-hydrogens can eliminate a carboxylic acid through a 6-membered transition state, resulting in an alkene.

Which reaction involves thermal decomposition of xanthate ester?

For the related Chugaev reaction, which involves the pyrolysis of xanthate esters (O-alkyl-S-methyl xanthates), conditions are much milder (100–200°C) (Scheme 6.20).

Is viscose better than cotton?

Viscose is semi-synthetic, unlike cotton, which is made from a natural, organic material. Viscose is not as durable as cotton, but it’s also lighter and smoother in feel, which some people prefer over cotton. One is not necessarily better than the other, except when you’re talking about durability and longevity.

What does 100% viscose mean?

Viscose fabric is a plant-based textile made from regenerated cellulose. Cellulose is a naturally occurring compound which helps to give plants structure. Cotton is mostly cellulose (about 90%), and viscose is 100% cellulose – so regarding their chemical composition, they are similar.

Which is used as froth stabilizer?

The correct answer is Cresol. Froth stabilizers are substances that help stabilize the froth formed during the froth flotation process. In order to get the froth to be stable, we use froth stabilizers so that the froth can be skimmed off easily. Common examples of froth stabilizers are cresol and aniline.