1.06657
Sodium sulfite
anhydrous for analysis EMSURE® Reag. Ph Eur
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
Na2SO3
CAS 번호:
Molecular Weight:
126.04
NACRES:
NA.21
EC Index Number:
231-821-4
UNSPSC Code:
12352302
MDL number:
Assay:
97.0-100.5% (iodometric)
Form:
powder
agency
reag. Ph. Eur.
Quality Level
product line
EMSURE®
assay
97.0-100.5% (iodometric)
form
powder
potency
2610 mg/kg LD50, oral (Rat)
impurities
≤0.005% Insoluble matter, ≤0.03 meq/g Titrable free base
pH
8.8-10 (20 °C, 50 g/L in H2O)
mp
>500 °C (decomposition)
density
2.63 g/cm3 at 20 °C
bulk density
1480 kg/m3
anion traces
chloride (Cl-): ≤0.02%, thiosulfate (S2O32-): ≤0.1%
cation traces
As: ≤0.0001%, Cu: ≤0.0005%, Fe: ≤0.001%, Pb: ≤0.0005%, Se: ≤0.0004%, Zn: ≤0.001%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[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
Application
- 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).
Analysis Note
Assay (iodometric): 97.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
Free acid: passes test
Titrable free base: ≤ 0.03 meq/g
Chloride (Cl): ≤ 0.02 %
Thiosulfate (S₂O₃): ≤ 0.1 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Se (Selenium): ≤ 0.0004 %
Zn (Zinc): ≤ 0.001 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
Free acid: passes test
Titrable free base: ≤ 0.03 meq/g
Chloride (Cl): ≤ 0.02 %
Thiosulfate (S₂O₃): ≤ 0.1 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Se (Selenium): ≤ 0.0004 %
Zn (Zinc): ≤ 0.001 %
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
저장 등급
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
시험 성적서(COA)
제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.
프로토콜
Sulfite용 표준용액 조제
Preparation of a standard solution for Sulfite
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 1.06657.1000 | 04022536080802 |
| 1.06657.9050 | 04022536080840 |
| 1.06657.5000 | 04022536080826 |
| 1.06657.0500 | 04022536080789 |