Examples of 'sodium sulphide' in a sentence
Meaning of "sodium sulphide"
sodium sulphide - A chemical compound composed of sodium and sulfur with various industrial uses
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- Alternative spelling of sodium sulfide
How to use "sodium sulphide" in a sentence
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sodium sulphide
Chemical depilation by means of slaked lime or sodium sulphide.
The use of sodium sulphide requires strongly alkaline conditions.
Particular preference is given to sodium sulphide and sodium disulphide.
The sodium sulphide is prepared directly from sodium sulphate by combustion.
Wood chips are digested in a pulping liquor of sodium sulphide and sodium hydroxide.
Large amounts of sodium sulphide are prepared in the sulphate pulp industry.
A synthetic white liquor was prepared from sodium hydroxide and sodium sulphide.
Sodium hydroxide and sodium sulphide are recovered and reused in the process.
The chemical agents used at present for tanning are sodium sulphide and calcium hydroxide.
Sodium sulphide solution is then added to remove Ni and Co as sulphides.
The inorganic chemicals form a smelt consisting mainly of sodium carbonate and sodium sulphide.
Caustic soda / sodium sulphide solution white liquor.
The embodiment just described thus permits the simultaneous manufacture of chlorine and of sodium sulphide.
Saturated solution of sodium sulphide a . r.
The most significant sodium chemicals of the green liquor are sodium carbonate and sodium sulphide.
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The addition of sodium sulphide nonahydrate results in alpha-HgS as a product.
This patent describes the use of leaching solutions containing sodium hydroxide and sodium sulphide.
Under reducing conditions, sodium sulphide is formed from the sulphur compounds which are supplied.
The sulphur-containing compound may be sodium sulphide.
Sodium sulphide is added to the solution and pH is gradually raised to 7-9.
Preferably, the added sulphide comprises sodium sulphide.
The solution 13 may be treated to extract sodium sulphide therefrom, for example by a crystallization technique.
A composition according to claim 1 wherein the sulphide is sodium sulphide.
Simultaneously, an aqueous solution 13 enriched with sodium sulphide is collected from the cathode chamber.
In one embodiment, the alkali metal sulphide is or comprises sodium sulphide.
On reacting these two we get crystals of Sodium Sulphide and a 30 % solution of hydrogen peroxide.
More preferably, the additional precipitating agent is sodium sulphide.
G of sodium sulphide monohydrate and 50 ml of dimethylformamide are introduced into a 500 ml three-necked flask.
In one example, the alkali metal sulphide is sodium sulphide.
These melted compounds are mainly sodium carbonate, sodium sulphide and sodium hydroxide.
In one example, the alkali metal sulphide is or comprises sodium sulphide.
The white liquor typically contains caustic soda, sodium sulphide and sodium carbonate.
The process according to claim 1, wherein said alkali metal sulphide is sodium sulphide.
In a preferred embodiment, the additional precipitating agent is selected from sodium sulphide and sodium hydrosulphide.
Typical chemicals used for metal precipitation are lime, sodium hydroxide, and sodium sulphide.
Reaction products of oleic acid, 2-mercaptoethyl ester, with dichlorodimethyltin, sodium sulphide and trichloromethyltin.
Substances that can be used include sodium hydroxide, sodium dichromate and hydrated sodium sulphide.
Approximately 50 mg EDTA can be used instead of sodium sulphide solution.
The process according to claim 1, wherein the sulphide ( a ) is a sodium sulphide.
G of sodium monochloroacetate ( 0.43 mol ) are added to this solution of sodium sulphide in a single portion.
The solution is treated with about 0.07 equivalents of aqueous sodium sulphide.
In one embodiment, the alkali metal sulphide is sodium sulphide.
In the case of kraft pulping, the active chemicals are NaOH and sodium sulphide ( Na2S ).
Before inoculation the medium was reduced by adding 10 ml / l of sterile neutral sodium sulphide ( 3 % solution ).
This solution typically includes sodium hydroxide ( NaOH ) and sodium sulphide ( Na2S ).
So the researchers mixed nanoparticles of tea with cadmium sulphate ( CdSO4 ) and sodium sulphide ( Na2S ).
Before inoculation the medium was reduced by adding 10 ml / I of sterile neutral sodium sulphide ( 5 % solution ).
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