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等級
ACS reagent
蒸汽密度
2.3 (vs air)
化驗
≥6% SO2 basis (by Na2S2O3, titration)
形狀
liquid
濃度
≥6%
燃燒殘留物
≤0.005%
密度
1.03 g/mL at 25 °C (lit.)
負離子痕跡
chloride (Cl-): ≤5 ppm
正離子痕跡
Fe: ≤5 ppm
heavy metals (as Pb): ≤2 ppm
SMILES 字串
OS(O)=O
InChI
1S/H2O3S/c1-4(2)3/h(H2,1,2,3)
InChI 密鑰
LSNNMFCWUKXFEE-UHFFFAOYSA-N
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一般說明
Sulfurous acid (H2SO3), a weak diprotic acid, is formed when sulfur dioxide (SO2) dissolves in water. Sulfurous acid is a complex mixture of various hydrates of SO2 and the ions H3O+, S2O52- and HSO3-. The predominant species present in the solution are pH dependent.
應用
Sulfurous acid can be used as a reducing agent in chemical synthesis.
訊號詞
Danger
危險聲明
危險分類
Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B
儲存類別代碼
8B - Non-combustible corrosive hazardous materials
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
其他客户在看
M Kharina et al.
Applied biochemistry and biotechnology, 179(2), 307-320 (2016-01-29)
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
The thermodynamic ionization constants of sulfurous acid at 25?1.
Tartar HV and Garretson HH.
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Rainfed viticulture, mainly in semi-arid environments, is limited by environmental variability, particularly precipitation and its seasonal distribution, and soil water availability, thus ultimately determining the final quality of grape and wine. Studies on the feasibility of practices such as canopy
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An inhibition study of the cytosolic carbonic anhydrase (CA, EC 4.2.1.1) isozyme VII (hCA VII) with anions has been conducted. Cyanate, cyanide, and hydrogensulfite were weak hCA VII inhibitors (K(I)s in the range of 7.3-15.2 mM). Cl- and HCO3- showed
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This study established a new more neutral magnesium bisulfate pretreatment (MBSP) using magnesium bisulfate as sulfonating agent for improving the enzymatic hydrolysis efficiency of corn stover. Using the MBSP with 5.21% magnesium bisulfate, 170°C and pH 5.2 for 60 min
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