If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
1.06657
Sodium sulfite
anhydrous for analysis EMSURE® Reag. Ph Eur
Wybierz wielkość
| Do Państwa/SKU | Dostępność | Cena netto |
|---|---|---|
500 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 218,00 zł |
1 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 336,00 zł |
5 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 1170,00 zł |
50 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 10 900,00 zł |
Informacje o tej pozycji
218,00 zł
agency
reag. Ph. Eur.
Quality Segment
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
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
1 of 1
Ta pozycja | |||
|---|---|---|---|
| form powder | form solid | form powder | form powder |
| assay 97.0-100.5% (iodometric) | assay 98-100.0% (iodometric) | assay ≥98% (RT) | assay ≥98% (RT) |
| Quality Level 300 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| mp >500 °C (decomposition) | mp - | mp - | mp - |
| anion traces chloride (Cl-): ≤0.02%, thiosulfate (S2O32-): ≤0.1% | anion traces chloride (Cl-): ≤50 mg/kg | anion traces chloride (Cl-): ≤50 mg/kg, thiosulfate (S2O32-): ≤200 mg/kg | anion traces chloride (Cl-): ≤50 mg/kg, thiosulfate (S2O32-): ≤200 mg/kg |
| cation traces Cu: ≤0.0005%, Pb: ≤0.0005%, Zn: ≤0.001%, As: ≤0.0001%, Se: ≤0.0004%, Fe: ≤0.001%, heavy metals (as Pb): ≤0.0005% | cation traces As: ≤0.2 mg/kg, Ca: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Pb: ≤5 mg/kg, Se: ≤10 mg/kg, Zn: ≤10 mg/kg | cation traces Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤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, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg | cation traces Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤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, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg |
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Klasa składowania
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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