Dissimilative sulfur reduction in which elemental sulfur can be reduced to hydrogen sulfide.

In purple sulfur bacteria, hydrogen sulfide (H2S) is oxidized to sulfur (S).

The sulfur cycle is the collection of processes by which sulfur moves to and from minerals (including the waterways) and living systems.

Desulfurization in which organic molecules containing sulfur can be desulfurized, producing hydrogen sulfide gas (H2S, oxidation state 2).

The local white limestone was also used to build the walls of the city and many other buildings, besides the towers.

Usually the sulfonating agent is sulfur trioxide.

Often the elemental sulfur is stored as polysulfides.

During the Middle Ages when the Gothic cathedrals were being built, the only active ingredient in the mortar was lime.

The exposure to the sulfur weakened the monster but also preserved him.

Oxidation of hydrogen sulfide produces elemental sulfur (S8), oxidation state 0.

It is often considered to exist as a dry red powder (also known as al Kibrit al Ahmar الكبريت الأحمر red sulphur) made from a legendary stone the philosophers' stone.

On a second path, the sulfur atom of 6 MP and TIMP is methylated.

This reaction occurs in the photosynthetic green and purple sulfur bacteria and some chemolithotrophs.

Because of a lack of stone and an abundance of clay, Babylonian constructions were of baked brick, using lime or pitch for mortar.

Nitrogen, phosphorus, and sulfur are also needed in relatively large quantities.

Solid fossil fuels are most frequently used for heating, which contain 2.5 4 per cent sulphur and which produce large quantities of sulphur dioxide and ash (20 30 per cent).

In June 1997, India declared its stock of chemical weapons (1,044 tonnes of sulphur mustard).

The WSA process is applied in all industries where removal of sulfur is an issue.

About 80 to 85 of the world s sulfur production is used to manufacture sulfuric acid.

For caulking the Chinese used a mix of ground lime with Tung oil together with chopped hemp from old fishing nets which set hard in 18 hours.

Industrial processes The expert review team should consider the possibility of double counting (for instance, the use of lime in iron and steel production) and avoid any double counting through the application of adjustments.

Industrial processes The expert review team should consider the possibility of double counting (for instance, the use of lime in iron and steel production) and avoid any double counting through the application of adjustments.

At 23 07, the HC 130P aerial refuelers (call signs Lime 01 and Lime 02) took off from Udorn, followed by the helicopters ten minutes later.

It's produced to get sulfur out of gasoline which I find is somewhat ironic.

Here mercury (Hg2 ) is bound very tightly to sulfur, but weathering slowly releases the mercury to the environment.

Over long periods of time, some mercury recombines with sulfur and is buried in sediments.

Large quantities of sulphur dioxide are emitted in the air because lubricants are in use for heating.

The construction of the Hovensa desulphurization unit is expected to create about 400 construction jobs.

In fact, sulfur reducing bacteria, as part of their synthesis, they will emit, as a byproduct, nanoparticles into the water.

It has a higher octane rating than gasoline and contains no sulphur, and so does not deactivate catalytic converters.

For tables 5(KP I), components are the aggregate totals for each carbon stock change column for the activity gains and losses should be considered separate components, where applicable For tables 5(KP II), components are the aggregate emissions for the activity from nitrogen (N) fertilization, drainage of soils, disturbance associated with land use conversion, lime application or biomass burning.

Certain foods such as garlic and onions produce sulfur in the breath for as long as 48 hours and can result in false readings.

The wet sulfuric acid process (WSA process) is one of the key gas desulfurization processes on the market today.

About half of the Parties considered switching to cleaner fuels, such as low sulphur fuels and LPG, from coal.

We inject our own aerosols into the atmosphere, and we have trace gases, and not just carbon dioxide it's methane, ozone, oxides of sulfur and nitrogen.

When used properly, this device can be very effective at determining levels of certain VSC producing bacteria.

You know, breathing high concentrations here of sulfur dioxide, carbon dioxide and methane gas, in unequal quantities 19 years of this.

Classic smog results from large amounts of coal burning in an area caused by a mixture of smoke and sulfur dioxide.

Magnesium sulfate (or magnesium sulphate) is an inorganic salt (chemical compound) containing magnesium, sulfur and oxygen, with the formula MgSO4.

D. H. Lawrence, in his memoir of a voyage to Sardinia, Sea and Sardinia , that he undertook in January 1921, described the effect of warm Mediterranean sunlight on the white limestone city and compared Cagliari to a white Jerusalem .

In the Federation of Bosnia and Herzegovina there is no single detection and measurement system for basic parameters of air pollution (sulphur dioxide and floating particles).

Sulphur dioxide concentration above the ceiling provokes respiratory problems in the population, particularly chronic patients and children.

3 The anthropogenically produced greenhouse gases include carbon dioxide (CO2) methane (CH4) nitrous oxide (N2O) hydrofluorocarbons (HFCs) perfluorocarbons (PFCs) and sulphur hexafluoride (SF6).

Here's Mount Pinatubo in the early '90s. That put a whole bunch of sulfur in the stratosphere with a sort of atomic bomb like cloud.

And then we have two parameters which we were not able to quantify air pollution, including warming gases and air polluting sulfates and nitrates, but also chemical pollution.