- 関
- sulfite、sulfur acid、sulfurous
WordNet
- street name for lysergic acid diethylamide (同)back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
- any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
- having the characteristics of an acid; "an acid reaction"
- of or related to or containing sulfur or derived from sulfur (同)sulphurous
PrepTutorEJDIC
- 酸性の / 酸味のある,すっぱい(sour) / (言葉・態度などが)厳しい,しんらつな / 酸 / すっぱいもの / 《俗》=LSD
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2018/03/26 21:11:27」(JST)
[Wiki en表示]
Not to be confused with Sulfuric acid.
Sulfurous acid
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| Names |
| IUPAC name
Sulfurous acid
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| Identifiers |
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CAS Number
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3D model (JSmol)
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| ChEBI |
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| ChEMBL |
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| ChemSpider |
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| ECHA InfoCard |
100.029.066 |
| KEGG |
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| UNII |
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InChI
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InChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3) Y
Key: LSNNMFCWUKXFEE-UHFFFAOYSA-N Y
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InChI=1/H2O3S/c1-4(2)3/h(H2,1,2,3)
Key: LSNNMFCWUKXFEE-UHFFFAOYAJ
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| Properties |
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Chemical formula
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H2SO3 |
| Molar mass |
82.07 g/mol |
| Acidity (pKa) |
1.857, 7.172 |
| Hazards |
| Safety data sheet |
ICSC 0074 |
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EU classification (DSD) (outdated)
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C (C) |
| R-phrases (outdated) |
R20, R34 |
| S-phrases (outdated) |
(S1/2), S9, S26, S36/37/39, S45 |
| Flash point |
Non-flammable |
| Related compounds |
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Related compounds
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Sulfur dioxide
Sulfuric acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references |
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Sulfurous acid (also sulphurous acid) is the chemical compound with the formula H2SO3. There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase.[1] The conjugate bases of this elusive acid are, however, common anions, bisulfite (or hydrogen sulfite) and sulfite. Sulfurous acid is an intermediate species in the formation of acid rain from sulfur dioxide.[2]
Raman spectra of solutions of sulfur dioxide in water show only signals due to the SO2 molecule and the bisulfite ion, HSO−
3.[3] The intensities of the signals are consistent with the following equilibrium:
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- SO2 + H2O ⇌ HSO−
3 + H+ Ka = 1.54×10−2; pKa = 1.81.
17O NMR spectroscopy provided evidence that solutions of sulfurous acid and protonated sulfites contains a mixture of isomers, which is in equilibrium:[4]
- [H–OSO2]− ⇌ [H–SO3]−
When trying to concentrate the solution by evaporation to produce waterless sulfurous acid it will decompose (reversing the forming reaction). In cooling down a clathrate SO2 · 5.75 H2O will crystallise which decomposes again at 7 °C. Thus sulfurous acid H2SO3 cannot be isolated.
Uses
Aqueous solutions of sulfur dioxide, which sometimes are referred to as sulfurous acid, are used as reducing agents and as disinfectants, as are solutions of bisulfite and sulfite salts. They are oxidised to sulfuric acid or sulfate by accepting another oxygen atom. [5]
They are also mild bleaches, and are used for materials which may be damaged by chlorine-containing bleaches.
References
- ^ D. Sülzle; M. Verhoeven; J. K. Terlouw; H. Schwarz (1988). "Generation and Characterization of Sulfurous Acid (H2SO3) and of Its Radical Cation as Stable Species in the Gas Phase". Angew. Chem. Int. Ed. Engl. 27 (11): 1533–4. doi:10.1002/anie.198815331.
- ^ McQuarrie; Rock (1987). General Chemistry (2nd ed.). New York: W.H. Freeman and Company. p. 243. ISBN 0-7167-1806-5.
- ^ Jolly, William L. (1991), Modern Inorganic Chemistry (2nd ed.), New York: McGraw-Hill, ISBN 0-07-032768-8
- ^ Catherine E. Housecroft; Alan G. Sharpe (2008). "Chapter 16: The group 16 elements". Inorganic Chemistry, 3rd Edition. Pearson. p. 520. ISBN 978-0-13-175553-6.
- ^ L. Kolditz, Anorganische Chemie, VEB Deutscher Verlag der Wissenschaften, Berlin 1983, S. 476.
See also
- Bisulfite
- Carbonic acid
- Pulp (paper)
- Sulfite paper pulp process
- Sulfite
- Sulfuric acid
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Hydrogen compounds
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- H3AsO3
- H3AsO4
- HAt
- HSO3F
- HBF4
- HBr
- HBrO
- HBrO2
- HBrO3
- HBrO4
- HCl
- HClO
- HClO2
- HClO3
- HClO4
- HCN
- HCNO
- H2CrO4/H2Cr2O7
- H2CO3
- H2CS3
- HF
- HFΟ
- HI
- HIO
- HIO2
- HIO3
- HIO4
- HMnO4
- H2MoO4
- HNC
- NaHCO3
- HNCO
- HNO
- HNO2
- HNO3
- H2N2O2
- HNO5S
- H3NSO3
- H2O
- H2O2
- H2O3
- H3PO2
- H3PO3
- H3PO4
- H4P2O7
- H5P3O10
- H2PtCl6
- H2S
- H2S2
- H2Se
- H2SeO3
- H2SeO4
- H4SiO4
- H2SiF6
- HSCN
- HNSC
- H2SO3
- H2SO4
- H2SO5
- H2S2O3
- H2S2O6
- H2S2O7
- H2S2O8
- CF3SO3H
- H2Te
- H2TeO3
- H6TeO6
- H4TiO4
- H2Po
- HCo(CO)4
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Sulfur compounds
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Chemical formulas
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| Authority control |
- LCCN: sh85130395
- GND: 4180444-2
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UpToDate Contents
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English Journal
- Pretreatment of Sugar Beet Pulp with Dilute Sulfurous Acid is Effective for Multipurpose Usage of Carbohydrates.
- Kharina M1, Emelyanov V2, Mokshina N3, Ibragimova N3, Gorshkova T4.
- Applied biochemistry and biotechnology.Appl Biochem Biotechnol.2016 Jan 28. [Epub ahead of print]
- Sulfurous acid was used for pretreatment of sugar beet pulp (SBP) in order to achieve high efficiency of both extraction of carbohydrates and subsequent enzymatic hydrolysis of the remaining solids. The main advantage of sulfurous acid usage as pretreatment agent is the possibility of its regenerati
- PMID 26821256
- Effects of Flavor and Texture on the Sensory Perception of Gouda-Type Cheese Varieties during Ripening Using Multivariate Analysis.
- Shiota M1, Iwasawa A1, Suzuki-Iwashima A1, Iida F2.
- Journal of food science.J Food Sci.2015 Dec;80(12):C2740-50. doi: 10.1111/1750-3841.13135. Epub 2015 Nov 9.
- The impact of flavor composition, texture, and other factors on desirability of different commercial sources of Gouda-type cheese using multivariate analyses on the basis of sensory and instrumental analyses were investigated. Volatile aroma compounds were measured using headspace solid-phase microe
- PMID 26551333
- Aroma improvement by repeated freeze-thaw treatment during Tuber melanosporum fermentation.
- Xiao DR1, Liu RS1, He L1, Li HM1, Tang YL2, Liang XH2, Chen T3, Tang YJ1.
- Scientific reports.Sci Rep.2015 Nov 26;5:17120. doi: 10.1038/srep17120.
- The aroma attributes of sulfurous, mushroom and earthy are the most important characteristics of the aroma of Tuber melanosporum. However, these three aroma attributes are absent in the T. melanosporum fermentation system. To improve the quality of the aroma, repeated freeze-thaw treatment (RFTT) wa
- PMID 26607288
Japanese Journal
- Inhibition by Polyphenolic Phytochemicals and Sulfurous Compounds of the Formation of 8-Chloroguanosine Mediated by Hypochlorous Acid, Human Myeloperoxidase, and Activated Human Neutrophils
- NAKANO Toshiki,MASUDA Mitsuharu,SUZUKI Toshinori [他]
- Bioscience, Biotechnology, and Biochemistry 76(12), 2208-2213, 2012-12
- NAID 40019530968
- 複分解反応利用によるフランノーベーク鋳型の亜硫酸ガス低減
- 永井 康弘,馬場 和明,糸藤 春喜 [他],清中 海舟
- 鋳造工学 = Journal of Japan Foundry Engineering Society 83(11), 618-621, 2011-11-25
- NAID 10030378823
- 足尾砂防地区緑化事業の植樹ボランティアにおける計画思想に関する研究
- 中村 愛子,下村 彰男
- ランドスケープ研究 72(5), 455-458, 2009
- わが国のボランティアによる植樹事業は、過度の森林伐採により戦後荒廃した国土の復興をめざし1950年から国土緑化運動における全国植樹祭を実施している。近年では、地球温暖化問題による社会的機運も加わり全国的に植樹活動を行っている市民団体が数多く存在している。本研究の対象地は、一級河川利根川の支流である渡良瀬川の源流に位置する足尾砂防地区大畑沢緑の砂防ゾーンとする。緑の砂防ゾーンは、栃木県日光市足尾町の …
- NAID 130000991908
Related Links
- sulfurous acidとは。意味や和訳。[U]《化学》亜硫酸（漂白剤用）. - goo英和辞書は14万項目以上を収録し、発音、音声、慣用句、例文が分かる英和辞書です。
- sulfurous acid /sul·fur·ous ac·id/ (sul?fūr-us) 1. a solution of sulfur dioxide in water, H2SO3; used as a reagent. 2. sulfur dioxide. sulfurous acid (H 2 SO 3) [sul′fərəs] a weak inorganic acid formed by dissolving sulfur dioxide in water ...
★リンクテーブル★
[★]
- 英
- sulfurous acid、sulfite、sulfurous
- 関
- 亜硫酸塩、イオウ酸
[★]
亜硫酸、亜硫酸塩
- 関
- sulfurous、sulfurous acid
[★]
イオウ酸、硫黄酸
- 関
- sulfurous acid
[★]
亜硫酸ガス。二酸化硫黄
[★]
フクシン亜硫酸試薬
[★]
フクシン亜硫酸試薬
[★]
- 関
- sulfite、sulfurous acid