Most naphthalene is derived from coal tar. Typical coal tar is about 10% naphthalene by weight. Naphthalene in crystallized from coal tar fraction with boiling point 210-220°C than it is washed with sulphuric acid solution to remove theophany, with diluted alkali to remove phenol and, finally, is distilled. Also naphthalene is produced from heavy petroleum fractions during petroleum refining, but today petroleum-derived naphthalene represents only a minor component of production . Coal tar is brown or black liquid of extremely high viscosity. In the coal gas era, there were many companies in Britain whose business was distil coal tar to separate the higher-value fractions, such as naphtha, creosote and pitch.
Which one is not a recognised key skill of management?
Which institutions are considered National Development Banks (NDBs) under the Net Stable Funding Ratio (NSFR) framework?
A company earned net profits of Rs. 150,000 during the year. If the amount of debtors in the beginning and the end of the year is Rs. 1,10,000 and Rs. 1...
What is the total backstop facility provided by the Corporate Debt Market Development Fund (CDMDF)?
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Calculate the net profit margin based on above information?
How is a non-performing asset (NPA) defined in the context of agricultural loans specifically for long duration crops?
Consider the following Statements and choose the option with correct Statements.
I- India had five major financial centres previously, namely, M...
Calls in arrear is shown in Balance Sheet as?
When employees exhibit control and restraint over himself/herself in difficult or adverse situations, it depicts which of the following characteristics?
