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Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH 4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure.It is stored and distributed in hard containers at a pressure of 20–25 megapascals (2,900–3,600 psi; 200–250 bar), usually in cylindrical or spherical shapes.
The Simplified Molecular Input Line Entry System (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings. SMILES strings can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the molecules.
The Institute of Chemistry PNG is the professional organisation supporting chemical sciences in Papua New Guinea and a learned society promoting the science and practice of chemistry. Affiliations [ edit ]
The full specification of PNG was released under the approval of W3C on 1 October 1996, and later as RFC 2083 on 15 January 1997. The specification was revised on 31 December 1998 as version 1.1, which addressed technical problems for gamma and color correction .
A polycarbonate is an oxocarbon dianion consisting of a chain of carbonate units, where successive carbonyl groups are directly linked to each other by shared additional oxygen atoms.
This fluoroalcohol finds use as solvent in organic chemistry. [1] Hexafluoro-2-propanol is transparent to UV light with high density , low viscosity and low refractive index . It is a colorless, volatile liquid with a pungent odor.
Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega−3 fatty acid.In physiological literature, it is given the name 20:5(n−3).It also has the trivial name timnodonic acid.
The chemical reactions of dimethylacetamide are typical of N,N-disubstituted amides. Hydrolysis of the acyl-N bond occurs in the presence of acids: . CH 3 CON(CH 3) 2 + H 2 O + HCl → CH 3 COOH + (CH 3) 2 NH 2 + Cl −