All articles starting with S

Sodium methoxide

Sodium methoxide, also called sodium methylate or sodium methanolate, is the sodium salt of methanol, a white hygroscopic solid used as a strong base and industrial catalyst.

Sodium molybdate

Sodium molybdate (Na₂MoO₄) is an inorganic sodium salt of molybdic acid, a white crystalline solid normally sold as the dihydrate and made from molybdenum trioxide and sodium hydroxide.

Sodium monochloroacetate (sodium chloroacetate, CAS 3926-62-3), the sodium salt of monochloroacetic acid: water-soluble white solid, industrial intermediate for carboxymethylcellulose, glycine, and dyes; toxic, EU non-approved herbicide.

Sodium monofluorophosphate

Sodium monofluorophosphate, commonly abbreviated MFP, is an inorganic compound, Na₂PO₃F, whose covalently bound fluoride is released in the mouth by enzymes; it has been the fluoride in anticavity toothpastes since 1965.

Sodium nickel manganese oxide

Sodium nickel manganese oxide, abbreviated NNMO and chiefly the composition NaNi0.5Mn0.5O2, is a layered oxide cathode material for sodium-ion batteries, first used in a full cell in 2011.

Sodium niobate

Sodium niobate (NaNbO3) is an antiferroelectric perovskite oxide of sodium, niobium, and oxygen, discovered in 1949 and the sodium end member of the KNN lead-free piezoelectric ceramics.

Sodium nitrate

Sodium nitrate (NaNO3), also known as Chile saltpeter or soda niter, is a colorless crystalline oxidizer salt mined in Chile's Atacama Desert, used as fertilizer, food additive, and solar energy storage medium.

Sodium nitrite

Sodium nitrite (NaNO2) is the sodium salt of nitrous acid, a white crystalline oxidizer used as a preservative and color fixative in cured meats and as a cyanide-poisoning antidote.

Sodium nitrite packaging film

Sodium nitrite packaging film, or nitrite-embedded film (GRN 228), is active packaging with 113 mg/m² sodium nitrite on one side that keeps vacuum-packaged raw beef and pork bright red via nitric oxide myoglobin, with FSIS 7/30-day dating and labeling conditions.

Sodium nitroprusside

Sodium nitroprusside (SNP, Nitropress, Nipride RTU), Na2[Fe(CN)5NO]·2H2O, an intravenous nitrovasodilator releasing nitric oxide and cyanide, used for hypertensive crises, controlled surgical hypotension, and acute heart failure.

Sodium o benzyl p chlorphenoxide

Sodium o-benzyl-p-chlorphenoxide, EU active substance ID 1154, a fungicide-category phenoxide salt with no CAS number; refused EU Annex I inclusion by Decision 2004/129/EC, not approved, default MRL 0.01 mg/kg.

Sodium o nitrophenolate

Sodium o-nitrophenolate (sodium 2-nitrophenolate, CAS 824-39-5), a synthetic nitrophenolate plant growth regulator; EU-approved until 31 January 2027, US tolerance-exempt since 2000, applied as foliar growth enhancer.

Sodium oligomannate

Sodium oligomannate (GV-971, 甘露特钠胶囊, brand 九期一) is a brown-algae-derived oligosaccharide drug conditionally approved in China in 2019 for mild-to-moderate Alzheimer's disease; its registration lapsed in 2024 and production is suspended.

Sodium orthovanadate

Sodium orthovanadate, also called sodium vanadate(V), is the inorganic sodium salt Na₃VO₄, a phosphate analog used in biochemistry as a broad, reversible, competitive inhibitor of protein tyrosine phosphatases.

Sodium oxalate

Sodium oxalate, also known as disodium oxalate, is the disodium salt of oxalic acid, an odorless white solid best known as the primary standard for standardizing potassium permanganate solutions.

Sodium oxide

Sodium oxide (Na2O), also called sodium monoxide, is a white, strongly basic ionic solid that reacts violently with water and is a key component of soda-lime glass.

Sodium oxybate

Sodium oxybate (GHB sodium salt; brands Xyrem, Lumryz) is a Schedule III CNS depressant treating cataplexy and excessive daytime sleepiness in narcolepsy patients 7 and older, FDA-approved 2002, distributed only via REMS central pharmacies, dosed twice or once nightly up to 9 g.

Sodium p nitrophenolate

Sodium p-nitrophenolate (sodium 4-nitrophenolate, CAS 824-78-2), a synthetic phenolic plant growth regulator used in blends like Atonik with o-nitrophenolate and 5-nitroguaiacolate; EU-approved until 2027, short soil DT50 of 1.23 days.

Sodium p t amylphenate

Sodium p-t-amylphenate (sodium p-tert-amylphenate, CAS 31366-95-7) is the sodium salt of p-tert-amylphenol, an antimicrobial fungicide/microbiocide registered in the US but not approved in the EU since 2002.

Sodium p t amylphenoxide

Sodium p-t-amylphenoxide (EU ID 1395), a sodium phenolate salt once evaluated as a fungicide active substance; not approved in the EU under Commission Decision 2004/129/EC, no CAS number, default MRL 0.01 mg/kg.

Sodium pentaborate

Sodium pentaborate (CAS 12007-92-0, B5NaO8) is a sodium borate salt, once a plant growth regulator and herbicide for apple russetting, now not EU-approved, also an oilwell cement retarder and investigational drug (SPP).

Sodium perborate

Sodium perborate, sold as the monohydrate and tetrahydrate, is a white crystalline peroxide salt that releases hydrogen peroxide in water, serving as the bleach in laundry detergents.

Sodium percarbonate

Sodium percarbonate, also called sodium carbonate peroxyhydrate (过碳酸钠), is a crystalline adduct of sodium carbonate and hydrogen peroxide used mainly as the oxygen-bleaching agent in laundry detergents.

Sodium perchlorate

Sodium perchlorate (NaClO₄) is a white, strongly oxidizing crystalline salt of perchloric acid, the most water-soluble perchlorate and the industrial starting material for all other perchlorate salts.

Sodium periodate

Sodium periodate, also called sodium metaperiodate, is the sodium salt NaIO₄ of periodate, a white crystalline oxidizing agent that cleaves vicinal diols in the Malaprade reaction.

Sodium persulfate

Sodium persulfate (Na₂S₂O₈), also called sodium peroxydisulfate, is the disodium salt of peroxydisulfuric acid, a white crystalline oxidizer used in circuit boards, polymer chemistry, and hair bleach.

Sodium polyacrylate

Sodium polyacrylate, also known as Waterlock, is the sodium salt of polyacrylic acid, a superabsorbent polymer that absorbs up to 500 times its weight and fills disposable diapers.

Oct 22, 2026

Sodium polychlorides

Sodium polychlorides are compounds of sodium and chlorine, stable only under pressures of tens of gigapascals, in which chlorine forms polyatomic anions or extended chains.

Sodium potassium hexametaphosphate

Sodium potassium hexametaphosphate (SKMP, CAS 67183-30-6) is a glassy mixed sodium-potassium polyphosphate, GRAS via FDA GRN 316 (2010) and permitted in Canada since 2015, used to replace sodium hexametaphosphate in reduced-sodium foods.