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8.14815

Sodium chlorite

(25% solution in water) for synthesis

Synonym(s):

Chlorous acid, sodium salt

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Size/SKUAvailabilityPrice
250 mL
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$44.70
1 L
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$95.80

About This Item

NACRES:
NA.22
UNSPSC Code:
12352302
Grade:
synthesis grade
Form:
liquid

$44.70


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grade

synthesis grade

Quality Segment

vapor pressure

20 hPa ( 20 °C)

form

liquid

potency

1136 mg/kg LD50, oral (Rat)

pH

12-13 (20 °C in H2O)

bp

≥100 °C/1013 hPa

mp

<-3 °C

density

1.20-1.25 g/cm3 at 20 °C

storage temp.

2-30°C

Application

Sodium chlorite (NaClO2) can be used as an oxidizing agent for the conversion of:
  • Aldehydes to corresponding carboxylic acids under mild reaction conditions in the presence of scavengers such as sulfamic acid or resorcinol.
  • Primary alcohols to carboxylic acids in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and NaOCl.
  • Aliphatic and aromatic thiols to the corresponding disulfides.
  • Aryl boronic acids to phenols via ipso-hydroxylation.
  • Cyclic benzylic ethers and N-protected cyclic benzylic amines to benzolactones and benzolactams.
  • Alkenes to epoxides using aldehydes as promoters.
  • Alkenes and cycloalkenes to 1, 2 diols via osmium-catalyzed Sharpless asymmetric dihydroxylation.

It can also be used in combination with Br2 to synthesize 2-carboxyazetidin-2-ones from furanylazetidinones.

Analysis Note

Assay (iodometric): 23.0 - 26.0 %
Density (d 20 °C/ 4 °C): 1.200 - 1.220

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This Item
1.0660995710381721
form

liquid

form

solid

form

powder

form

solid

Quality Level

200

Quality Level

300

Quality Level

100

Quality Level

100

grade

synthesis grade

grade

-

grade

-

grade

-

pH

12-13 (20 °C in H2O)

pH

3.5-3.8 (20 °C, 100 g/L in H2O)

pH

-

pH

-

mp

<-3 °C

mp

-

mp

-

mp

226-229 °C (dec.) (lit.)

vapor pressure

20 hPa ( 20 °C)

vapor pressure

-

vapor pressure

-

vapor pressure

-


signalword

Danger

target_organs

spleen

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1 - STOT RE 2

supp_hazards

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects



Certificates of Analysis (COA)

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Questions

1–2 of 2 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/418/501/product-dating-information-06-25-mk.pdf

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  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

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