推荐产品
Agency
reag. Ph. Eur.
质量水平
产品线
EMSURE®
检测方案
97.0-100.5% (iodometric)
形式
powder
效能
2610 mg/kg LD50, oral (Rat)
杂质
≤0.005% Insoluble matter
≤0.03 meq/g Titrable free base
pH值（酸碱度）
8.8-10 (20 °C, 50 g/L in H2O)
mp
>500 °C (decomposition)
密度
2.63 g/cm3 at 20 °C
堆积密度
1480 kg/m3
痕量阴离子
chloride (Cl-): ≤0.02%
thiosulfate (S2O32-): ≤0.1%
痕量阳离子
As: ≤0.0001%
Cu: ≤0.0005%
Fe: ≤0.001%
Pb: ≤0.0005%
Se: ≤0.0004%
Zn: ≤0.001%
heavy metals (as Pb): ≤0.0005%
储存温度
2-30°C
SMILES字符串
[Na+].[Na+].[O-]S([O-])=O
InChI
1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
InChI key
GEHJYWRUCIMESM-UHFFFAOYSA-L
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应用
- Structural Properties and Hydrolysability of Paulownia elongate: The Effects of Pretreatment Methods Based on Acetic Acid and Its Combination with Sodium Sulfite or Sodium Sulfite: This study investigates how acetic acid and sodium sulfite pretreatments affect the structural properties and enzymatic hydrolysis of fast-growing Paulownia elongate. The combination significantly improved cellulose content and enzymatic digestibility, demonstrating potential for efficient sugar production (Wang et al., 2022).
- Effects of oxygen scavengers (Sodium sulfite, sodium bisulfite, sodium dithionite, and sodium metabisulfite) on growth and accumulation of biomass in the green alga Asterarcys quadricellulare: This research explores the impact of various oxygen scavengers on the biomass growth of the green alga Asterarcys quadricellulare. Sodium sulfite was one of the compounds tested for enhancing biomass accumulation (Sudha et al., 2022).
- A novel photo-assisted activated persulfate strategy for selective oxidation of ammonia nitrogen to dinitrogen using sodium silicate and sodium sulfite as regulators: This paper presents a new strategy for the selective oxidation of ammonia nitrogen to dinitrogen. Sodium sulfite was used as a regulator to enhance the efficiency of the process (Zhang et al., 2024).
- Effectiveness of sodium sulfite as an electron acceptor for bioenhanced treatment of salt-containing water produced from ASP flooding: This study examines the role of sodium sulfite as an electron acceptor in the bioenhanced treatment of saline water from alkaline-surfactant-polymer flooding. The findings suggest improved treatment efficiency with sodium sulfite addition (Zhang et al., 2021).
分析说明
含量测定（碘量滴定法）：97.0 - 100.5 %
鉴别：通过测试
溶液外观：通过测试
不溶物质： ≤ 0.005 %
游离酸：通过测试
可滴定游离碱： ≤ 0.03 meq/g
氯化物（Cl）： ≤ 0.02 %
硫代硫酸盐（S₂O₃）： ≤ 0.1 %
重金属（以铅计）： ≤ 0.0005 %
As（砷）： ≤ 0.0001 %
Cu（铜）： ≤ 0.0005 %
Fe（铁）： ≤ 0.001 %
Pb（铅）： ≤ 0.0005 %
Se（硒）： ≤ 0.0004 %
Zn（锌）： ≤ 0.001 %
鉴别：通过测试
溶液外观：通过测试
不溶物质： ≤ 0.005 %
游离酸：通过测试
可滴定游离碱： ≤ 0.03 meq/g
氯化物（Cl）： ≤ 0.02 %
硫代硫酸盐（S₂O₃）： ≤ 0.1 %
重金属（以铅计）： ≤ 0.0005 %
As（砷）： ≤ 0.0001 %
Cu（铜）： ≤ 0.0005 %
Fe（铁）： ≤ 0.001 %
Pb（铅）： ≤ 0.0005 %
Se（硒）： ≤ 0.0004 %
Zn（锌）： ≤ 0.001 %
法律信息
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
实验方案
亚硫酸盐标准溶液制备
Preparation of a standard solution for Sulfite
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