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Oxyanion of sulfur at the oxidation number +3
The dithionite is the oxyanion with the formula [S2O4]2−. It is commonly encountered as the salt sodium dithionite. For historical reasons, it is sometimes
Dithionite
Chemical compound
Sodium dithionite (also known as sodium hydrosulfite) is a white crystalline powder with a sulfurous odor. Although it is stable in dry air, it decomposes
Sodium_dithionite
Chemicals used to whiten or disinfect
which is used to bleach wool, either as gas or from solutions of sodium dithionite, and sodium borohydride. Bleaches generally react with many other organic
Bleach
Chemical compound
Potassium dithionite or potassium hydrosulfite is a potassium salt of dithionous acid. The compound has UN number UN 1929. As a dithionite, it is closely
Potassium_dithionite
Chemical compound
to be in its +5 oxidation state. It should not be confused with sodium dithionite, Na2S2O4, which is a very different compound, and is a powerful reducing
Sodium_dithionate
Chemical compound containing SO2 bound to a transition metal
formation of an adduct. Thereafter, the alkyl ligand migrates to the SO2. Dithionite, the reductively coupled derivative of sulfur dioxide is observed as a
Metal_sulfur_dioxide_complex
Chemical compound
tautomer. It can be prepared by reduction of 1,4-naphthoquinone with dithionite as well as by acid-hydrolysis of 1-hydroxy-4-aminonaphthalene. Both routes
1,4-Dihydroxynaphthalene
Chemical process in paper making
oxidizes the chromophores, dithionite reduces these color-causing groups. Dithionite reacts with oxygen, so efficient use of dithionite requires that oxygen
Bleaching_of_wood_pulp
acid (H 2S 2O 2), which is also of doubtful existence. Dithionite (S 2O2− 4) as in sodium dithionite. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry
Hyposulfite
to absorb the sulfur dioxide given off by the chemical dithionite in the developer, dithionite was not required in the developing process. In 1881, he
History_of_photography
Lightest color
are oxidizing agents, a fewer number are reducing agents such as sodium dithionite. Bleaches attack the chromophores, the part of a molecule which absorbs
White
Chemical compound
of sodium borohydride is the production of sodium dithionite from sulfur dioxide: Sodium dithionite is used as a bleaching agent for wood pulp and in
Sodium_borohydride
Chemical compound
sodium dithionite and formaldehyde: Na2S2O4 + 2 CH2O + H2O → HO-CH2-SO3Na + HO-CH2-SO2Na This reaction proceeds quantitatively, such that dithionite can
Rongalite
Anion of sulfur with 4 oxygen atoms
Peroxydisulfate S2O72– Pyrosulfate S2O62– Dithionate S2O52– Metabisulfite S2O42– Dithionite S2O32– Thiosulfate S3O62– Trithionate S4O62– Tetrathionate
Sulfate
Chemical compound
cytochrome c (E°' ~ 247 mV at pH 7) in isolated mitochondria. Sodium dithionite is usually used as a reducing chemical in such experiments (E°' ~ −420
Potassium_ferricyanide
Chemical compound
observed experimentally. It is the conjugate acid of the dithionite dianion, S2O42-. Dithionite is a well-known reducing agent. Dithionic acid (H2S2O6)
Dithionous_acid
Anion of sulfur with 3 oxygen atoms
potassium bisulfite, potassium metabisulfite, sodium bisulfite, sodium dithionite, sodium metabisulfite, sodium sulfite, sulfur dioxide and sulfurous acid
Sulfite
Chemical compound
be prepared by reducing Hemin in pyridine with sodium dithionite. Upon addition of the dithionite, the solution changed color and gelled: It can also be
Heme_B
Chemical compound
bisulfite Other cations Potassium metabisulfite Related compounds Sodium dithionite Sodium thiosulfate Sodium sulfate Except where otherwise noted, data are
Sodium_metabisulfite
Redox-active proteins containing a heme with a Fe atom as a cofactor
at wavelengths near 450 nm when the heme iron is reduced (with sodium dithionite) and complexed to carbon monoxide. These enzymes are primarily involved
Cytochrome
Chemical compound
3-nitrophthalhydrazide. Reduction of the nitro group to an amino group with sodium dithionite (Na2S2O4), via a transient hydroxylamine intermediate, produces luminol
Luminol
Environmental remediation technique
removed. In the process, dithionite is consumed and the final product of all the reactions is 2 sulfur dioxide anions. The dithionite is not stable for a long
In_situ_chemical_reduction
Redox reaction whose products have higher and lower oxidation states than the reactant
4 N2 + NH3 + 3 OH− Dithionite undergoes acid hydrolysis to thiosulfate and bisulfite: 2 S2O2−4 + H2O → S2O2−3 + 2 HSO−3 Dithionite also undergoes alkaline
Disproportionation
sulfate 7757–82–6 Na2S2O3 sodium thiosulfate 7772–98–7 Na2S2O4 sodium dithionite 7775–14–6 Na2S2O5 sodium metabisulfite 7681–57–4 Na2S2O7 sodium pyrosulfate
List of CAS numbers by chemical compound
List_of_CAS_numbers_by_chemical_compound
Locally acting nonsteroidal anti-inflammatory drug
that the nitroso derivative is reduced with sodium hydrosulfite (sodium dithionite) and not with sodium hyposulfite (sodium thiosulfate), as shown in the
Benzydamine
Microorganisms that "breathe" sulfates
other oxidized inorganic sulfur compounds, such as sulfite (SO2− 3), dithionite (S 2O2− 4), thiosulfate (S 2O2− 3), trithionate (S 3O2− 6), tetrathionate
Sulfate-reducing microorganism
Sulfate-reducing_microorganism
Chemical compound
vigorously with lower alcohols. LiH reacts with sulfur dioxide to give the dithionite: 2 LiH + 2 SO2 → Li2S2O4 + H2 though above 50 °C the product is lithium
Lithium_hydride
Fibrous material used notably in papermaking
retained in the pulp, and the chemicals used (hydrogen peroxide and sodium dithionite) produce benign byproducts (water and sodium sulfate (finally), respectively)
Pulp_(paper)
Chemical compound
Health Barbera JJ, Metzger A, Wolf M (2012). "Sulfites, Thiosulfates, and Dithionites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH
Sodium_thiosulfate
Topics referred to by the same term
books published by Oktomica Comics Virtex L, otherwise known as sodium dithionite Vertex (disambiguation) This disambiguation page lists articles associated
Virtex
Chemical compound
prepared by reduction of ammoniacal solutions of nickel sulfate with sodium dithionite under an atmosphere of CO. On moderate heating, Ni(CO)4 decomposes to
Nickel_tetracarbonyl
Chemical compound
samples can be purified by treatment of its aqueous solution with sodium dithionite and activated carbon. o-Phenylenediamine condenses with ketones and aldehydes
O-Phenylenediamine
Soluble chemical substance or natural material which can impart color to other materials
reduced to a water-soluble form (leuco compound) using caustic soda and dithionites or sodium sulfide, applied to the fiber, and then fixed in an insoluble
Dye
Chemical reaction
with sodium 1,2-naphthoquinone-4-sulfonate (Folin's reagent) and sodium dithionite under alkaline conditions. This was pioneered by the American organic
Sullivan_reaction
Simplest carboxylic acid (HCOOH)
oxides to their respective metal, and sulfur dioxide to thiosulfate via dithionite. In synthetic organic chemistry, it is often used as a source of hydride
Formic_acid
Chemical compound
pyridine to its N-oxide. A substitution reaction using either sodium dithionite (Na 2S 2O 4) or sodium sulfide with sodium hydroxide will allow the replacement
Pyrithione
Polyatomic ion (S2O3, charge –2)
version. Barberá, J.J.; Metzger, A.; Wolf, M. "Sulfites, Thiosulfates, and Dithionites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH
Thiosulfate
Acid containing sulfur, oxygen, and hydrogen
Bisulfite, HSO− 3 and sulfite, SO2− 3 Not known. Dithionous acid H2S2O4 +3 Dithionite, O 2SSO2− 2 Not known. Sulfoxylic acid H2SO2 +2 Sulfoxylate, SO2− 2 Free
Sulfur_oxoacid
Chemical compound
J. Barbera; A. Metzger; M. Wolf (2012). "Sulfites, Thiosulfates, and Dithionites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH
Ammonium_thiosulfate
Any chemical compound having a borohydride anion
reduction of sulfur dioxide to give sodium dithionite: Na[BH4] + 8 NaOH + 8 SO2 → 4 Na2S2O4 + NaBO2 + 6 H2O Dithionite is used to bleach wood pulp. Sodium borohydride
Borohydride
Chemical compound
with a suitable peracid followed by substitution using either sodium dithionite or sodium sulfide with sodium hydroxide to introduce the thiol functional
2-Bromopyridine
Chemical compound
acid to 4-nitro-2,6-diphenylphenol and subsequently reduced with sodium dithionite to the amine. This is reacted in presence of sodium acetate in ethanol
Reichardt's_dye
The Marschalk reaction in chemistry is the sodium dithionite promoted reaction of a phenolic anthraquinone with an aldehyde to yield a substituted phenolic
Marschalk_reaction
Biochemical technique
simplification of low-background silver staining of proteins by using sodium dithionite". Electrophoresis. 9 (6): 288–291. doi:10.1002/elps.1150090608. PMID 2466660
SDS-PAGE
Enzyme involved in fruit browning
banana fruit PPO by similar sulfur-containing compounds including sodium dithionite and cysteine, in addition to ascorbic acid (vitamin C). Several assays
Polyphenol_oxidase
Chemical compound
form RC(=O)N(OR′)2; or an iminoiodinane. Reduction of nitrosamines with dithionite. A small number of highly hindered derivatives with tertiary R groups
Isodiazene
Chemical compound
growth of the bacterium, helped by the inflammatory response. Corrosion Dithionite Polysulfides Thiosulfate Greenwood, Norman N.; Earnshaw, Alan (1997).
Tetrathionate
Unstable oxoacid of sulfur
sulfates. Dithionite is unstable in a pH 4 solution, decomposing to sulfoxylic acid and hydrogen sulfite. This sulfoxylic acid reacts with more dithionite to
Sulfoxylic_acid
Fluxional process in trigonal-pyramidal molecules
The system interconverts by oxidation by oxygen and reduction by sodium dithionite. Conformational strain and structural rigidity can effectively prevent
Pyramidal_inversion
Acid that contains oxygen
Thiosulfuric acid S 2O2− 3 Thiosulfate +3 H 2S 2O 4 Dithionous acid S 2O2− 4 Dithionite +3, −1 HOSOSH Thiosulfurous acid OSOS2− Thiosulfite +2 H 2SO 2 Sulfoxylic
Oxyacid
Dye with two chemical forms
colored indigo. The reduction step is typically achieved with sodium dithionite, hydroxyacetone and hydrogen, or by electrochemical methods. Indigo white
Leuco_dye
Topics referred to by the same term
4-substituted amphetamines Doxycycline, a semi-synthetic tetracycline Sodium dithionite (D-Ox) Dox (poet), born Jean Verdi Salomon Razakandrainy (1913–1978),
Dox
brittle. Mechanical pulps can be bleached with hydrogen peroxide or sodium dithionite, but the brightness is only increased slightly and the yellowing cannot
Mechanical_pulping
Numbers, classes, and proper shipping names allocated to dangerous goods
3 Propyleneimine, inhibited UN 1922 3 Pyrrolidine UN 1923 4.2 Calcium dithionite or Calcium hydrosulfite UN 1924 ? (UN No. no longer in use) Ethyl aluminium
List of UN numbers 1901 to 2000
List_of_UN_numbers_1901_to_2000
Topics referred to by the same term
Direct Carrier Billing, a method of doing digital financial transactions Dithionite-Citrate-Bicarbonate method used for iron oxide removal from clays in soil
DCB
K2CrO4 Potassium cyanide – KCN Potassium dichromate – K2Cr2O7 Potassium dithionite – K2S2O4 Potassium ferrate – K2FeO4 Potassium ferrioxalate – K3[Fe(C2O4)3]
List_of_inorganic_compounds
Chemical compound
TPEN induces apoptosis, another study found that TPEN inhibits sodium dithionite and glucose deprivation (SDGD)-Induced neuronal death by modulating apoptosis
TPEN
Chemical compound
2-amino-6-nitrosopyrimidine-4,5-diol Which is then reduced with sodium dithionite to yield divicine. Some chemical characteristics of divicine have been
Divicine
Transmission of genes occurring outside the nucleus
strains of Neurospora crassa. Evidence for a component reduced only by dithionite". J. Biol. Chem. 249 (9): 2886–90. doi:10.1016/S0021-9258(19)42713-0.
Extranuclear_inheritance
Chemical compound
also proceed with tin(II) chloride instead of iron powder or with sodium dithionite in methanol. In its main application, DAB is the precursor to polybenzimidazole
3,3'-Diaminobenzidine
Chemical compound
equivalent of tin(IV) chloride: Reduction of 1,4-naphthoquinone with dithionite gives 1,4-dihydroxynaphthalene. The reaction is reversible: oxidation
1,4-Naphthoquinone
Group of chemical compounds used as dye
occurs in microorganisms but can be attained chemically using sodium dithionite. Biodegradation has been well investigated because of its relevance to
Methyl_violet
crystal structure of the oxidised enzyme at 1.82-A resolution and the dithionite-reduced enzyme at 2.8-A resolution". Journal of Biological Inorganic Chemistry
DMSO_reductase
Group of organonitrogen compounds
indole synthesis of triptan compounds and indometacin. The use of sodium dithionite is an improvement over stannous chloride since it is a cheaper reducing
Diazonium_compound
Aeruginosa with oxidised FMN and DMAP, followed by reduction with sodium dithionite, lead to the formation of prFMNreduced. The same procedure followed by
Flavin prenyltransferase (UbiX)
Flavin_prenyltransferase_(UbiX)
Discontinued optical video disc format
by Flexplay and SpectraDisc employs methylene blue reduced by sodium dithionite. In order to prevent the oxidation from being triggered during manufacture
Flexplay
Class of dyes used with cellulose fiber such as cotton
reducing agent to solubilize them. The most common reducing agent is sodium dithionite (Na2S2O4), which converts the dye to its "leuco" form that is soluble
Vat_dye
Chemical compound
dyes and marine flares. 1,4-Diaminoanthraquinone is reacted with sodium dithionite to produce 1,4-diamino-2,3-dihydroanthraquinone. Heyer, Thomas; Niclas
1,4-Diamino-2,3-dihydroanthraquinone
1,4-Diamino-2,3-dihydroanthraquinone
Using silver compounds to add colour
simplification of low-background silver staining of proteins by using sodium dithionite". Electrophoresis. 9 (6): 288–291. doi:10.1002/elps.1150090608. PMID 2466660
Silver_staining
Pyrophoric metals, n.o.s. or Pyrophoric alloys, n.o.s. UN 1384 4.2 Sodium dithionite or Sodium hydrosulfite UN 1385 4.2 Sodium sulfide, anhydrous or Sodium
List of UN numbers 1301 to 1400
List_of_UN_numbers_1301_to_1400
Chemical compound
Safety data sheet (SDS) ICSC 1136 Related compounds Other anions Sodium dithionite Sodium sulfite Sodium sulfate Other cations Potassium persulfate Except
Sodium_persulfate
reducing agents (amalgam of sodium) converts them into sulfites and dithionites. Polythionic acids are rarely encountered, but polythionates are common
Polythionic_acid
Chemicals used in paper manufacturing
chlorate Sodium chlorate NaClO3 Used to generate Chlorine Dioxide Sodium dithionite Sodium hydrosulfite Na2S2O4 Bleaching Sodium hypochlorite Sodium hypochlorite
Paper_chemicals
Coordination complexes of transition metals and metal ions with carbon monoxide ligands
aqueous phase, nickel or cobalt salts can be reduced, for example by sodium dithionite. In the presence of carbon monoxide, cobalt salts are quantitatively converted
Metal_carbonyl
Chemical compound
which can be further reduced using ammonium sulfide (NH4)2S, sodium dithionite (Na2S2O4), zinc dust/hydrochloric acid, or more effectively by catalytic
2,4,6-Triaminopyrimidine
English photographer and chemical engineer
absorb the sulphur dioxide, which was given off by the chemical dithionite, that dithionite was no longer required in the developing process. Berkeley published
Herbert_Bowyer_Berkeley
Enzyme necessary for the process of nitrogen fixation
in the absence of nitrogen through the reduction of carbon monoxide by dithionite and ATP hydrolysis . The process of forming these hydrocarbons is carried
Vanadium_nitrogenase
cystine MeSH D01.248.497.158.904 – sulfites MeSH D01.248.497.158.904.150 – dithionite MeSH D01.248.497.158.952 – vanadates MeSH D01.248.497.300 – cations MeSH D01
List_of_MeSH_codes_(D01)
Ion
them to sulfates and strong reducing agents reduce them to sulfites and dithionites. Aqueous solutions of dithionates are quite stable and can be boiled
Dithionate
retained in the pulp, and the chemicals used (hydrogen peroxide and sodium dithionite) produce benign byproducts (water and, eventually, sodium sulfate, respectively)
Environmental_impact_of_paper
Food additives
potassium bisulfite, potassium metabisulfite, sodium bisulfite, sodium dithionite, sodium metabisulfite, sodium sulfite, sulfur dioxide and sulfurous acid
Sulfite food and beverage additives
Sulfite_food_and_beverage_additives
German chemist (1918-2007)
of Carbon Monoxide Reactions of Nickel(II) Salts in the Presence of Dithionites and Sulfoxylates". After receiving his doctorate in 1952, he remained
Ernst_Otto_Fischer
Chemical compound
Barbera, J. J.; Metzger, A.; Wolf, M. (2012). "Sulfites, Thiosulfates, and Dithionites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH
Potassium_thiosulfate
Chemical compound
not particularly air-sensitive. The cation is then reduced by sodium dithionite in aqueous sodium hydroxide. The resulting solid was bis(benzene)chromium:
Bis(benzene)chromium
Chemical compound
Barbera JJ, Metzger A, Wolf M (2012). "Sulfites, Thiosulfates, and Dithionites". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH
Sodium_aurothiosulfate
Canadian geophysicist and businessman
reactions in existing batteries were, and guessed that it was lithium dithionite, which he was able to synthesize. Working in a trailer, Ballard and Schwartz
Geoffrey_Ballard
Hydrogenase in a two-compartment proton-exchange-membrane (PEM) Sodium dithionite (SD) Oh et al. Pt-clusters deposited on the interior of a heat shock protein
Hydrogenase_mimic
Chinese organic chemist (1921–2015)
perfluoroalkanesulfinates with sulfinatodehalogenation reagents such as sodium dithionite. He and his students identified this reaction as a single electron transfer
Huang_Weiyuan
Chemical compound
this compound is by the reaction of ammonium pertechnetate with sodium dithionite. The dihydrate dehydrates to anhydrous technetium dioxide at 300 °C, and
Technetium(IV)_oxide
Israeli microbiologist (born 1951)
ISSN 0014-5793. S2CID 85273971. Belkin, Shimshon; Padan, Etana (1983-07-01). "Na-Dithionite Promotes Photosynthetic Sulfide Utilization by the Cyanobacterium Oscillatoria
Shimshon_Belkin
Pulp and paper mill in Halden, Norway
Bleaching with chlorine was replaced with hydrogen peroxide and sodium dithionite in 1989. This was largely done during a period when most customers demanded
Norske_Skog_Saugbrugs
DITHIONITE
DITHIONITE
DITHIONITE
DITHIONITE
Girl/Female
Irish
noble.
Girl/Female
Hebrew
Life.
Girl/Female
Indian
Petals of flowers
Girl/Female
Arabic
Storm; Tempest
Girl/Female
Hindu
Enchantress, Charming
Boy/Male
Gujarati, Indian, Kannada
Ever Cheerful and Beaming
Girl/Female
Hindu, Indian, Marathi, Sanskrit
Joyous; Making a Pleasing Sounds
Girl/Female
Tamil
Boy/Male
Hindu, Indian, Punjabi, Sikh
Of Great Fortune; Destiny; Fortune; Luck
Girl/Female
Arabic, Farsi, Hindu, Indian, Iranian, Muslim
Royal
DITHIONITE
DITHIONITE
DITHIONITE
DITHIONITE
DITHIONITE