Carbon

Carbon paper

Carbon paper, the meaning of the carbon paper in 'Pulp and Paper Manufacture', 2nd edn., volume II which has been described as follows: Carbon paper is made by coating paper with a mixture consisting principally of a wax and a pigment. The colour is obtained from the pigment, usually a carbon black of low oil absorption, plus toners, usually lake pigments or oil-soluble dyes, which are added to increase the blackness, Collector of Central Excise v. Krishna Carbon Paper Co., (1989) 1 SCC 150: AIR 1988 SC 2223 (2227). [Central Excise and Salt Act (1 of 1944) Sch. 1]...

Carbon process

A printing process depending on the effect of light on bichromatized gelatin Paper coated with a mixture of the gelatin and a pigment is called carbon paper or carbon tissue This is exposed under a negative and the film is transferred from the paper to some other support and developed by washing the unexposed portions being dissolved away If the process stops here it is called single transfer if the image is afterward transferred in order to give an unreversed print the method is called double transfer...

An elementary substance not metallic in its nature which is present in all organic compounds Atomic weight 1197 Symbol C it is combustible and forms the base of lampblack and charcoal and enters largely into mineral coals In its pure crystallized state it constitutes the diamond the hardest of known substances occuring in monometric crystals like the octahedron etc Another modification is graphite or blacklead and in this it is soft and occurs in hexagonal prisms or tables When united with oxygen it forms carbon dioxide commonly called carbonic acid or carbonic oxide according to the proportions of the oxygen when united with hydrogen it forms various compounds called hydrocarbons Compare Diamond and Graphite...

carbon 14

a radioactive isotope of carbon with a half life of 5730 years It occurs naturally in minute quantities and is used as the basis for radiocarbon dating...

Carbon steel

Steel deriving its qualities from carbon chiefly without the presence of other alloying elements opposed to alloy steel...

Carbon transmitter

A telephone transmitter in which a carbon contact is used...

Carbonization

The act or process of carbonizing...

Carbonated

Combined or impregnated with carbonic acid...

Carbonate

A salt or carbonic acid as in limestone some forms of lead ore etc...

Cast iron

Cast iron, 'Cast iron' is defined in the Concise Oxford Dictionary as 'a hard alloy of iron, carbon and silicon cast in a mould'. According to New Lexicon Webster's Dictionary of English Language, the word 'cast iron' means 'an iron-carbon alloy produced in a blast furnace. It contains up to 4% carbon, and is more brittle, but more easily fused, than steel'. According to Van Nostrand's scientific Encyclopedia, 'cast iron' is 'primarily the product of remelting and casting pig iron'. (Interestingly, the expression 'cast-iron' - with a hyphen between 'cast' and 'iron' - has been defined separately as meaning 'made of cast iron', Bengal Iron Corpn. v. CTO, 1994 Supp (1) SCC 310: AIR 1993 SC 2414 (2417). [A.P. General Sales Tax Act, (6 of 1957)]Cast iron casting in its basic or rough form just be held to be 'cast iron'. But, if thereafter any machining or polishing or any other process is done to the rough cast iron casting to produce things like pipes, manhole covers or bends, these canno...

Carbon - Law Dictionary Search Results