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425044

Sigma-Aldrich

Sodium hypochlorite solution

greener alternative

reagent grade, available chlorine 10-15 %

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About This Item

Fórmula lineal:
NaClO
Número de CAS:
7681-52-9
Peso molecular:
74.44
MDL number:
MFCD00011120
UNSPSC Code:
12161902
PubChem Substance ID:
329756232
NACRES:
NA.21
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grade

reagent grade

Quality Level

200

agency

suitable for SM 4500 - NH3

vapor pressure

23.3 hPa ( 20 °C)

form

liquid

composition

available chlorine, 10-15%

reaction suitability

reagent type: oxidant

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

concentration

10-15% (chlorine by Na2S2O3, titration)

bp

111 °C

density

1.206 g/mL at 25 °C

greener alternative category

Aligned,

storage temp.

2-8°C

SMILES string

[Na+].[O-]Cl

InChI

1S/ClO.Na/c1-2;/q-1;+1

InChI key

SUKJFIGYRHOWBL-UHFFFAOYSA-N

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General description

Efficacy of 2.5% sodium hypochlorite (NaOCl) solution as endodontic irrigant has been tested.[1] It has been proposed as tissue solvent. Effect of time and storage conditions on tissue-dissolving capacity of various concentrations of NaOCl have been evaluated.[2] [3]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is considered as an environmentally benign oxidant and has been enhanced for "Safer Solvents and Auxiliaries". Click here for more information.

Application

Sodium hypochlorite is an oxidant used with catalytic TEMPO for oxidation of alcohols. It is generally used in the synthesis of sodium 3,3′-bis(sulfonato)-4,4′-bis(acetamido)azobenzene.[4]

Towards greener solvents for the bleach oxidation of alcohols catalysed by stable N-oxy radicals

Disclaimer

The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.

pictograms

CorrosionEnvironment
GHS05,GHS09

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

supp_hazards

EUH031

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
MKCW1361
MKCW1359
MKCW5769
MKCW5770
STBL1233

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Sodium iodide ACS reagent, ≥99.5%

Sigma-Aldrich

383112

Sodium iodide

Melanie Hillion et al.
Scientific reports, 7(1), 1195-1195 (2017-04-28)
Mycothiol (MSH) is the major low molecular weight (LMW) thiol in Actinomycetes. Here, we used shotgun proteomics, OxICAT and RNA-seq transcriptomics to analyse protein S-mycothiolation, reversible thiol-oxidations and their impact on gene expression in Mycobacterium smegmatis under hypochlorite stress. In
Ruoyu Guo et al.
International journal of genomics, 2015, 484626-484626 (2015-06-13)
The marine dinoflagellate Cochlodinium polykrikoides is responsible for harmful algal blooms in aquatic environments and has spread into the world's oceans. As a microeukaryote, it seems to have distinct genomic characteristics, like gene structure and regulation. In the present study
Ian Morrissey et al.
PloS one, 9(1), e86669-e86669 (2014-01-28)
To date there are no clear criteria to determine whether a microbe is susceptible to biocides or not. As a starting point for distinguishing between wild-type and resistant organisms, we set out to determine the minimal inhibitory concentration (MIC) and
Effects of the algicides CuSO4 and NaOCl on various physiological parameters in the harmful dinoflagellate Cochlodinium polykrikoides.
Ebenezer V, et al.
Journal of Applied Phycology, 26(6), 2357-2365 (2014)
B R Johnson et al.
Journal of endodontics, 19(1), 40-43 (1993-01-01)
Although the tissue solvent and bactericidal properties of sodium hypochlorite are well known, the effective shelf-life of prepared sodium hypochlorite solutions is not known. The stability of sodium hypochlorite is adversely affected by exposure to high temperature, light, air, and
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Questions

1–8 of 8 Questions  

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

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

      Helpful?

  2. 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?

  3. Please provide information on whether the 10-15% concentration of this solution is by weight/weight, volume/volume, or something else.

    1 answer

    1. The chlorine concentration is reported as Weight/Weight (W/W) for this product.

      Helpful?

  4. How was the titration done for 425044, and how was the percent for the COA obtained?

    1 answer

    1. The quality level of the product is 100, no information can be provided on the tests that are run on the COA.

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  5. Is this material %(W/V) or %(W/W) for the available chlorine titration.

    1 answer

    1. It is % (W/W).

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  6. How is available chlorine tested?

    1 answer

    1. To analyze for available chlorine, a sample of sodium hypochlorite is added to a solution of potassium iodide in the presence of acid to liberate iodine.  The liberated iodine is titrated with standardized sodium thiosulfate.

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  7. What is the definition of available chlorine?

    1 answer

    1. Available chlorine is a measure of the bleaching power of a substance. Available chlorine is defined as chlorine capable of releasing an equivalent amount of atomic oxygen according to the following reaction equations.Cl2 + 2OH- --> OCl- + Cl- + H2O  (eqn. 1) HOCl --> HCl + ½ O2  (eqn. 2)

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  8. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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