Sentences with phrase «oxygen oxidised»

The hydrogen floated off into space while the oxygen oxidised the iron - rich Martian topsoil, turning it rust - red.

In today's atmosphere, oxygen oxidises all hydrogen sulphide, thus destroying gold's sulphur complex in a short time, which is why gold is practically insoluble in today's river water.

Not exact matches

These mixtures are added to replace the natural flavours lost when the juice chemically separates oxygen (or «deaerates») to be able to maintain shelf life for more than one year without oxidising.

Only after atmospheric oxygen was formed did uranium become oxidised to its mobile hexavalent uranium (VI).

Only during the second marked increase in atmospheric oxygen content 600 million years ago did the deep ocean become fully oxidised, which allowed the oceanic crust to gain the «fingerprint» of high uranium - 238.

In chlorophyll, modification of one of the side chains helps to stabilise the reduced chlorin ring in the presence of oxygen (chlo - rins without such rings are easy to oxidise).

«Anti-oxidants protect the fats that we eat, which can otherwise become oxidised (mixed with oxygen) and harmful,» Radd says.

It boosts the immune system, protects vision, stops the build - up of oxidised fats, and helps to convert carbohydrates into energy and most crucially reduces the damage done to important cell components caused by reactive oxygen molecules such as free radicals and peroxides7.

To oxidise simply means to react with oxygen.

Our Hoki Fish Oil is packaged in a neat pump bottle to avoid contact with oxygen as exposed oils can easily oxidise.

The hydrogen was lost to space leaving highly reactive oxygen to combust reduced carbon (C and CH4) and sulphur (inc sulphide) to acid gases as well as oxidise near surface elemental or ferrous iron to ferric (red) iron.

Where there is no oxygen in the water, then it is impossible for the insoluble sulphides in the tailings to oxidise into something soluble and dangerous.

Low - oxygen bottom waters mean that the microbial population of the deep ocean is limited in its ability to oxidise photsynthetically produced organic matter back to CO2; thus the sediments accumulate a higher proportion of organic matter.

This oxidation process has also gone to completion on Venus and Mars, which are both highly oxidising at the surface — however, in both cases the lack of water to break down means no free oxygen; without a continuous source, even very slow geological processes will draw down all free oxygen.