08982
偏亚硫酸氢钠
analytical standard
别名:
E223, 偏二亚硫酸钠, 焦亚硫酸钠
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关于此项目
线性分子式:
Na2S2O5
化学文摘社编号:
分子量:
190.11
E Number:
E223
PubChem Substance ID:
UNSPSC Code:
85151701
NACRES:
NA.24
EC Number:
231-673-0
MDL number:
产品名称
偏亚硫酸氢钠, analytical standard
InChI key
HRZFUMHJMZEROT-UHFFFAOYSA-L
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
grade
analytical standard
assay
≥98.0% (iodometric, RT)
shelf life
limited shelf life, expiry date on the label
mp
>300 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg
thiosulfate (S2O32-): ≤500 mg/kg
cation traces
As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤200 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
Quality Level
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Analysis Note
痕量金属分析：符合要求
Application
偏重亚硫酸钠可用作一种抗氧化剂，在通过毛细管电泳测定牙科麻醉剂溶液中的肾上腺素含量时添加到麻醉剂配方中以将肾上腺素氧化最小化。在通过高效液相色谱法和电化学检测法测定人血浆中儿茶酚胺时，还可用作测定标准品。
General description
偏重亚硫酸钠主要用作多种食品和药物的抗氧化剂和抗微生物添加剂。也可用作预防虾黑变病的主要添加剂。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
supp_hazards
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Raggi MA, et al.
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I U Nieves et al.
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Microaeration (injecting air into the headspace) improved the fermentation of hemicellulose hydrolysates obtained from the phosphoric acid pretreatment of sugarcane bagasse at 170°C for 10 min. In addition, with 10% slurries of phosphoric acid pretreated bagasse (180°C, 10 min), air
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