sodium sulphide BrE
sodium sulfide AmE

This conversion is promoted by the presence of sodium sulfide.

Thiodiglycol is manufactured by reaction of 2-chloroethanol with sodium sulfide.

Next, a sodium sulfide solution is applied to the skin side of the fleece.

If you want to test red paint, use a kit with a different reagent, sodium sulfide.

Today, the lime solution is occasionally sharpened by the use of sodium sulfide.

I guess it is not as hazardous as sodium sulfide, Na2S, in that regard.

The most common is sodium sulfide.

At high temperatures, it can be converted to sodium sulfide by carbothermal reduction:

-famous sodium sulfide factory by Nagori is located in Baliya.

Sodium sulfide is an active ingredient in some over-the-counter ingrown toenail relief products.

Iron sulfate, developed by sodium sulfide.

The process is analogous to the reaction of S with sodium sulfide, except that the higher polyiodides have branched structures.

Like sodium hydroxide, sodium sulfide is strongly alkaline and can cause skin burns.

White liquor is a strongly alkaline solution mainly of sodium hydroxide and sodium sulfide.

Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides.

The reagent is prepared by treating trimethylsilyl chloride with anhydrous sodium sulfide:

These grades of sodium sulfide are marketed as 'sodium sulfide flakes'.

Sodium sulfide (or hydrogen sulfide and base)

This reaction involves conversion of nitro aromates like nitrobenzene to amines by reduction with sodium sulfides.

Byproducts include sodium thiocarbonate, sodium carbonate, and sodium sulfide.

For example, reaction with sodium sulfide produces the brown/black tin(II) sulfide:

Sodium sulfide can oxidize when heated to sodium carbonate and sulfur dioxide:

Sodium sulfide affords trithiocarbonate:

In the kraft process the pulping chemicals are sodium hydroxide and sodium sulfide and the solution is known as white liquor.

Organics present in the "black liquor" from this process are burnt to produce heat, needed to drive the reduction of sodium sulfate to sodium sulfide.