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243973

Sigma-Aldrich

Sodium bisulfite

ACS reagent

Szinonimák:

Sodium hydrogensulfite

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez

Méret kiválasztása

5 G
16 000,00 Ft
100 G
18 400,00 Ft
500 G
47 200,00 Ft
1 KG
95 900,00 Ft
2.5 KG
152 000,00 Ft
12 KG
351 000,00 Ft

16 000,00 Ft

Az elérhetőséggel kapcsolatos kérdésekkel kérjük, forduljon Vevőszolgálatunkhoz.
Megrendelés igénylése nagy tételben
Összes fotó(7)

Méret kiválasztása

Nézet módosítása
5 G
16 000,00 Ft
100 G
18 400,00 Ft
500 G
47 200,00 Ft
1 KG
95 900,00 Ft
2.5 KG
152 000,00 Ft
12 KG
351 000,00 Ft

About This Item

Tapasztalati képlet (Hill-képlet):
NaHSO3
CAS-szám:
7631-90-5
Molekulatömeg:
104.06
MDL-szám:
MFCD00003530
UNSPSC kód:
12352302
PubChem Substance ID:
24854644
NACRES:
NA.21
grade:
ACS reagent
Forma:
powder or crystals

16 000,00 Ft

Az elérhetőséggel kapcsolatos kérdésekkel kérjük, forduljon Vevőszolgálatunkhoz.
Megrendelés igénylése nagy tételben

grade

ACS reagent

Minőségi szint

200

Forma

powder or crystals

koncentráció

≥58.5% SO2

szennyeződések

≤0.005% insolubles

pH

4.3 (10 g/L)

anion nyomok

chloride (Cl-): ≤0.02%

kation nyomok

Fe: ≤0.002%
heavy metals (as Pb): ≤0.001%

SMILES string

[Na+].OS([O-])=O

InChI

1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2

Nemzetközi kémiai azonosító kulcs

DWAQJAXMDSEUJJ-UHFFFAOYSA-L

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Általános leírás

Sodium bisulfite is a widely used industrial chemical as a reducing agent, catalyst, and preservative in pharmaceuticals and foods due to its antioxidative and antibacterial effects.
The aqueous solutions of sodium bisulfite are acidic in nature. Degradation of sodium bisulfite with acid forms sulfur dioxide gas.[1]

Alkalmazás

Sodium bisulfite (NaHSO3) has been used as a reagent to compose the immunoprecipitation (IP) buffer to chemically modify DNA[2] and to synthesize arsenolipids (AsL).[3]
It can also be used as a reagent during the synthesis of 5,6-dihydrouracil-6-sulfonate.[4]
Sodium bisulfite can be used as:
  • A reagent to synthesize aldehyde-bisulfite adducts from aromatic and aliphatic aldehydes.
  • A catalyst in the solvent-free etherification of aromatic/aliphatic alcohols to synthesize symmetric and unsymmetric ethers via intermolecular dehydration.
  • An additive in the copper-catalyzed homocoupling of ketoxime carboxylates to synthesize symmetrical pyrroles.

Piktogramok

Exclamation mark
GHS07

Figyelmeztetés

Warning

Figyelmeztető mondatok

H302

Óvintézkedésre vonatkozó mondatok

P264 - P270 - P301 + P312 - P501

Veszélyességi osztályok

Acute Tox. 4 Oral

Egyéb veszélyek

EUH031

Tárolási osztály kódja

13 - Non Combustible Solids

WGK

WGK 1

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Válasszon a legfrissebb verziók közül:

Analitikai tanúsítványok (COA)

Lot/Batch Number
0000421649
0000421650
0000421650
0000421649
0000391707

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Sodium bisulfate monohydrate ReagentPlus®, 99%

Sigma-Aldrich

233714

Sodium bisulfate monohydrate

Ammonium sulfite monohydrate 92%

Sigma-Aldrich

358983

Ammonium sulfite monohydrate

Bromine reagent grade

Sigma-Aldrich

207888

Bromine

Hamid Mostafavi Abdolmaleky et al.
Methods in molecular biology (Clifton, N.J.), 448, 187-212 (2008-03-29)
Although there is evidence to link schizophrenia (SCZ) and bipolar disorder (BD) to genetic and environmental factors, specific individual or groups of genes/factors causative of the disease have been elusive to the research community. An understanding of the molecular aberrations
Ledgard J.
The Preparatory Manual of Explosives., 87-87 (2007)
Synthesis of two new arsenolipids and their identification in fish.
Arroyo-Abad U, et al.
European Journal of Lipid Science and Technology, 118(3), 445-452 (2015)
Wei Zhou et al.
Journal of Korean medical science, 24(1), 97-103 (2009-03-10)
Epithelial membrane protein 3 (EMP3) is a trans-membrane signaling molecule with important roles in the regulation of apoptosis, differentiation and invasion of cancer cells, but the detailed is largely still unknown. We analyzed the mRNA levels and methylation statuses of
Sarah H Taylor et al.
BioTechniques, 52(4), 254-262 (2012-04-10)
RNA silencing has been exploited to produce transgenic plants with resistance to viral pathogens via posttranscriptional gene silencing (PTGS). In some cases, this technology is difficult to apply due to the instability of inverted repeat (IR) constructs during cloning and
View All Related Papers

Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

      Helpful?

  2. Dear Sir / Madame, I would kindly ask you to tell me what is the shelf life of the Sodium Bisulfite, no. 243973, batch no. MKCN9017. In the Certificate of Analysis is not specified the date the product expires. Thank you.

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

      Helpful?

  3. i just want to know that nahso3 assay is 58.5% SO2 in figure but, in msds it was marked assay 95~100%. i don't know reason why. please, explain it to me. assay값의 표기가 58.5% So2로 되어있는데, 실제 MSDS를 보면 95~100%라고 되어있어서 혼동되어 질문드립니다. 혹시 나머지 41.5%는 다른 물질인가요?

    1 answer

    1. The concentration on the Material Safety Data Sheet is in reference to what is in the bottle. There is no preservative or solvent added or included. This is essentially a pure preparation of NaHSO3. This is not a specification. The purity of the product is measured by titration as % SO2. The concentration on the webpage is the purity specification and refers to the % SO2 which is greater than or equal to 58.5%.

      Helpful?

  4. How can I determine the shelf life / expiration / retest date of this product?

    0 answers

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