Editing Sodium chloride (section)

===Miscellaneous industrial uses===
Sodium chloride is heavily used, so even relatively minor applications can consume massive quantities. In [[crude oil|oil]] and [[natural gas|gas]] exploration, salt is an important component of drilling fluids in well drilling.<ref>{{Cite book |last1=Caenn |first1=Ryen |title=Composition and properties of drilling and completion fluids |last2=Darley |first2=H. C. H. |last3=Gray |first3=George Robert |last4=Gray |first4=George Robert |date=2011 |publisher=Gulf Professional Pub |isbn=978-0-12-383858-2 |edition=6th |location=Amsterdam ; Boston, MA}}</ref> It is used to [[flocculation|flocculate]] and increase the [[density]] of the drilling fluid to overcome high downwell gas pressures. Whenever a drill hits a salt formation, salt is added to the drilling fluid to saturate the solution in order to minimize the dissolution within the salt stratum.<ref name=Ullmann/> Salt is also used to increase the curing of concrete in cemented casings.<ref name=usgs/>

In textiles and dyeing, salt is used as a brine rinse to separate organic contaminants,<ref>{{Cite journal |last1=Partal |first1=Recep |last2=Basturk |first2=Irfan |last3=Murat Hocaoglu |first3=Selda |last4=Baban |first4=Ahmet |last5=Yilmaz |first5=Ecem |date=2022 |title=Recovery of water and reusable salt solution from reverse osmosis brine in textile industry: A case study |journal=Water Resources and Industry |language=en |volume=27 |pages=100174 |doi=10.1016/j.wri.2022.100174 |bibcode=2022WRI....2700174P |doi-access=free }}</ref> to promote "salting out" of dyestuff precipitates, and to blend with concentrated dyes to increase yield in dyebaths and make the colors look sharper. One of its main roles is to provide the positive ion charge to promote the absorption of negatively charged ions of dyes.<ref name=usgs/>

For use in the [[pulp and paper industry]], it is used to manufacture [[sodium chlorate]], which is then reacted with [[sulfuric acid]] and a reducing agent such as [[methanol]] to manufacture [[chlorine dioxide]], a [[bleach]]ing chemical that is widely used to [[Bleaching of wood pulp|bleach wood pulp]].

In tanning and leather treatment, salt is added to animal [[hide (skin)|hides]] to inhibit microbial activity on the underside of the hides and to attract moisture back into the hides.<ref name=usgs/>

In rubber manufacture, salt is used to make [[synthetic rubber|buna]], [[neoprene]], and white rubber types. Salt brine and sulfuric acid are used to coagulate an emulsified [[latex]] made from chlorinated [[butadiene]].<ref name=usgs/><ref name=Ullmann/>

Salt also is added to secure the soil and to provide firmness to the foundation on which highways are built. The salt acts to minimize the effects of shifting caused in the subsurface by changes in humidity and traffic load.<ref name=usgs/>