# Unsaturated hydrocarbons have one or more double or triple bonds between carbon atoms.

Unsaturated hydrocarbons are hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.

Unsaturated hydrocarbons with both double and triple bonds have the suffix-enyne and are handled in a similar manner.

Unsaturated colors such as pink, or purple variations such as magenta, are absent, for example, because they can be made only by a mix of multiple wavelengths.

Unsaturated mercury vapor can be used, but as it can not be replenished, the lifetime of such tubes is lower.

Unsaturated compounds, especially alkenes and alkyne

Unsaturated fats can be further divided into cis fats, which are the most common in nature, and trans fats, which are rare in nature but present in partially hydrogenated vegetable oils.

Unsaturated fats are derived from fatty acids with the formula C < sub > n </ sub > H < sub >( 2n-1 )</ sub > CO < sub > 2 </ sub > H.

Unsaturated fats ( e. g., vegetable oil ) are considered healthier, while trans fats are to be avoided.

Unsaturated fats have a lower melting point and are more likely to be liquid.

Unsaturated compounds of the two formations are classified as geometric isomers of one another.

Unsaturated fatty acids have one or more double bonds between carbon atoms.

Unsaturated fats can be converted to saturated ones by the process of hydrogenation.

Unsaturated and odd-chain fatty acids require additional enzymatic steps for degradation.

Unsaturated conditions occur above the water table where the pressure head is negative ( absolute pressure can never be negative, but gauge pressure can ) and the water that incompletely fills the pores of the aquifer material is under suction.

* Unsaturated fats A type of fat.

Unsaturated compounds have double bonds ( C = C ) between carbon atoms, reducing the number of places where hydrogen atoms can bond to carbon atoms.

Unsaturated fluorocarbons tend to be used as reactants.

Unsaturated fluorocarbons have a driving force towards sp < sup > 3 </ sup > hybridization due to the electronegative fluorine atoms seeking a greater share of bonding electrons with reduced s character in orbitals.

Unsaturated vegetable oils can be transformed through partial or complete " hydrogenation " into oils of higher melting point.

Unsaturated air has less than 100 % relative humidity ; i. e. its actual temperature is higher than its dew point.

Four singles were lifted from the album: " Jeremiah Peabody's Poly Unsaturated Quick Dissolving Fast Acting Pleasant Tasting Green and Purple Pills " ( his first Top 40 hit ), " Scratch My Back ( I Love It )" ( which failed to chart ), " Ahab the Arab " ( his major breakthrough hit and his biggest until his 1970 hit " Everything Is Beautiful "), and " Further More.

Unsaturated fat is a fat molecule containing one or more double bonds between the carbon atoms.

Unsaturated chains have a lower melting point, hence increasing fluidity of the cell membranes.

" Destruction of Superflow in Unsaturated 4He Films and the Prediction of a New Crystalline Phase of 4He with Bose-Einstein Condensation ", Physics Letters, Vol.

Most aliphatic compounds are flammable, allowing the use of hydrocarbons as fuel, such as methane in Bunsen burners and as liquified natural gas ( LNG ), and acetylene in welding.

It is stored and shipped in dry saturated hydrocarbons such as mineral oil.

Exhaust from a spark ignition engine consists of the following: nitrogen 70 to 75 % ( by volume ), water vapor 10 to 12 %, carbon dioxide 10 to 13. 5 %, hydrogen 0. 5 to 2 %, oxygen 0. 2 to 2 %, carbon monoxide: 0. 1 to 6 %, unburnt hydrocarbons and partial oxidation products ( e. g. aldehydes ) 0. 5 to 1 %, nitrogen monoxide 0. 01 to 0. 4 %, nitrous oxide < 100 ppm, sulfur dioxide 15 to 60 ppm, traces of other compounds such as fuel additives and lubricants, also halogen and metallic compounds, and other particles.

Other carcinogens identified in food include heterocyclic amines generated in meat when cooked at high temperature, polyaromatic hydrocarbons in charred meat and smoked fish, and nitrosamines generated from nitrites used as food preservatives in cured meat such as bacon.

Hydrogen is the most common fuel, but hydrocarbons such as natural gas and alcohols like methanol are sometimes used.

SOFCs are capable of internally reforming light hydrocarbons such as methane ( natural gas ), propane and butane.

Chiral saturated hydrocarbons constitute the side chains of biomolecules such as chlorophyll and tocopherol.

This inherent ability of hydrocarbons to bond to themselves is referred to as catenation, and allows hydrocarbon to form more complex molecules, such as cyclohexane, and in rarer cases, arenes such as benzene.

Generally, with catenation comes the loss of the total amount of bonded hydrocarbons and an increase in the amount of energy required for bond cleavage due to strain exerted upon the molecule ; in molecules such as cyclohexane, this is referred to as ring strain, and occurs due to the " destabilized " spatial electron configuration of the atom.

Solutions of iodine in strong donor solvents such as acetone, tetrahydrofuran, pyridine appears brown or yellow ( λ < sub > max </ sub > = 460-480 nm ), while in solvents of weaker donors such as dichloromethane it appears crimson red, in aromatic hydrocarbons such as benzene and toluene it appears pink or reddish-brown.

Not all of the fuel is completely consumed by the combustion process ; a small amount of fuel is present after combustion, and some of it reacts to form oxygenates, such as formaldehyde or acetaldehyde, or hydrocarbons not originally present in the input fuel mixture.

" This may have been due to the common practice of adulterating kerosene with other, more volatile hydrocarbons, such as the cheaper benzene.

Many fungi are able to break down complex organic biomolecules such as lignin, the more durable component of wood, and pollutants such as xenobiotics, petroleum, and polycyclic aromatic hydrocarbons.

However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state.

The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium.

Examples are hydrocarbons such as oil and grease that easily mix with each other, while being incompatible with water.

The harmful effects of tobacco derive from the thousands of different compounds generated in the smoke, including polycyclic aromatic hydrocarbons ( such as benzpyrene ), formaldehyde, cadmium, nickel, arsenic, radioactive polonium-210, tobacco-specific nitrosamines ( TSNAs ), phenols, and many others.

One such yeast, Yarrowia lipolytica, is known to degrade palm oil mill effluent, TNT ( an explosive material ), and other hydrocarbons, such as alkanes, fatty acids, fats and oils.