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- Sodium sulphide is
the name used to refer to the chemical compound Na2S but more
commonly its hydrate Na2S.9H2O. Both are
a colorless water-soluble salts that give strongly alkaline solutions.
- Sodium Sulfide is a
yellow to red solid, readily soluble in water, slightly soluble in
alcohol. It is a strong reducing agent and reacts with oxidants.
- The enzymatic
treatment of hides and skins can be considered as a cleaner technology
only if the amount of sodium sulphide is reduced substantially. However
it is not yet possible to use less than 1% of sodium sulphide for
Sodium Sulfide Pre-treatment Increases the Rate and
Sensitivity of Silver Precipitation onto DAB. While looking for ways to
maximize the sensitivity of the silver enhancement, we observed that
pre-treatment of the DAB with sodium sulfide was very effective for this
Sodium Sulphide is primarily used in pulp and paper
It is used in water treatment as an oxygen scavenger
agent, in the photographic industry to protect developer solutions from
oxidation, in textile industry as a bleaching, as a desulfurizing and as a
dechlorinating agent and in leather trade for the sulfitization of tanning
It is used in the production of rubber chemicals,
sulfur dyes and other chemical compounds.
It is use in other applications include ore flotation,
oil recovery, food preservative, making dyes, and detergent.
The most extensive use is in the deplilation of hides
for leather before tanning, in wood pulp processing and desulfuration of
rayon and cellophane.
During our religious holiday of sacrifice, a leakage
was detected on the retaining wall of sodium sulphide pool towards the dry
irrigation water channel, which is located along the border of the plant.
The oral ingestion of alkali sulphides has been
reported to cause nausea, vomiting and epigastric pain, as well as
irritate the mucous membranes; it has been estimated that an oral dose of
10 to 15 g sodium sulphide would be fatal to humans.
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