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Asphalt

Definition

Asphalt is brownish to black ,thick sticky and highly viscous liquid or semi solid compound. Asphalt is obtained during refining of coal or petroleum and consist of mixture of hydrocarbon. It is used in preparations of roads. Asphalt is composed of bitumen which is present in crude petroleum.

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What is Coal Tar ?

Coal tar is a black fluid of tremendously high viscosity when coal is carbonized,

Coal tar is among the by-products which manufactured coke or gasified to make coal gas.

Coal tars are compound and variable mixtures of phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds.

Paracetamol is the only coal-tar derived analgesic which is still in use today, but industrial phenol is now usually synthesized from crude oil rather than coal tar.

Coal

Definition

Coal is considered to be a fossil fuel which is dark black to brownish in color, rock formed from plants that have been fossilized through the process of oxidation. Coal contains amorphous carbon along with different organic as well some inorganic compounds and liberates carbon dioxide and other harmful gases when burned. Coal is widely used to generate electricity as well as heat.

Types of Coal

Coal is a multifaceted resource which differs in composition even inside the same deposit. There are four different types or ranking based on various levels of coal with differences in energy output as a result of increased temperature,pressure & time

Lignite is a brownish-black coal with great moisture and ash content and the lowest heating value of the four types of coal. It is used for generating electricity.

Black Hat SEO

Short Definition of term Black Hat SEO is defined as follows. Let us check brief explanation and meaning of the given term which is given below.

In SEO - (Search Engine Optimization) some webmaster violates webmaster guidelines in orde to rank top in search results , such methods are known as black hat SEO. Duplicate content, Cloaking, keyword stuffing , SEO spamming are some of its types.

Black Hat SEO

Short Definition of term Black Hat SEO is defined as follows. Let us check brief explanation and meaning of the given term which is given below.

In SEO - (Search Engine Optimization) some webmaster violates webmaster guidelines in orde to rank top in search results , such methods are known as black hat SEO. Duplicate content, Cloaking, keyword stuffing , SEO spamming are some of its types.

Effectiveness of Inorganic Coal

Mineral coal is used in producing steam power to drive railway trains, Steam-ships and Steamers.

Steam-power is produced from water boiled by mineral coal. Electricity is easily manufactured from coal by planting thermal stations near coal mines.

Synthetic petrol is manufactured from mineral; coal through a kind of chemical process.

What is Coal ?

Coal is a combustible sedimentary rock composed generally of carbon and hydrocarbons.

Coal is non-renewable resource which is the most abundant manufactured fossil fuel in the United States.

Coal is the leading source of energy for the generation of electricity all over the world, also anthropogenic sources of carbon dioxide releases.

Coal act as abundant resource that has been used for thousands of years to yield energy, mutually in the form of heat and electricity.

Advantages and disadvantages of solid phase extraction

Solid phase extraction:Let us discuss advantages and disadvantages of solid phase extraction. Some of them are discussed below so let us check it out one by one.

Advantages:

No emulsion problems observed.

Cost is low

Accuracy is greater

Glass breakage minimal

Lower solvent consumption

Reagent consumption lower

No cross contamination

Less sample handling

Process in fewer steps

Disadvantages:

Incomplete removal of the interferences

How is Coal Formed ?

Since the 13th century coal is derived from the Old English term col, which means "mineral of fossilized carbon".

Coal consists of high content of carbon and other elements like, sulfur, hydrogen, oxygen, and nitrogen.

Coal is a naturally black sedimentary rock occurring in rock strata in layers or veins called coal beds or coal seams.

Anthracite coal is the solider form of coal, can be considered as metamorphic rock because of later exposure to high temperature and pressure.