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06203

Sigma-Aldrich

Hydroxyde de sodium

Sodium hydroxide

puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets

Synonyme(s) :

"Soude caustique"

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About This Item

Formule linéaire :
NaOH
Numéro CAS:
1310-73-2
Poids moléculaire :
40.00
Numéro CE :
215-185-5
Numéro MDL:
MFCD00003548
Code UNSPSC :
12352302
ID de substance PubChem :
329748217
Nomenclature NACRES :
NA.21
Essai:
98-100.5%
Pression de vapeur:
<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

>1 (vs air)

Niveau de qualité

200

Pression de vapeur

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

Qualité

puriss.
meets analytical specification of Ph. Eur., BP, NF, E524

Essai

98-100.5%

Forme

pellets

Impuretés

≤0.0005% total nitrogen (N)
≤0.002% heavy metals (as Pb)
≤0.5% Na2CO3

Pf

318 °C (lit.)

Solubilité

water: soluble 1260 g/L at 20 °C

Densité

2.13 g/cm3 at 20 °C

Traces d'anions

chloride (Cl-): ≤20 mg/kg
phosphate (PO43-): ≤10 mg/kg
silicate (as SiO2): ≤100 mg/kg
sulfate (SO42-): ≤30 mg/kg

Traces de cations

Al: ≤10 mg/kg
As: ≤2 mg/kg
Ca: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤1000 mg/kg
Pb: ≤0.5 mg/kg

Chaîne SMILES 

[OH-].[Na+]
[OH-].[Na+]

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

Clé InChI

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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Catégories apparentées

Description générale

Sodium hydroxide, also known as lye and caustic soda, is a strong base used universally as a neutralization agent in the chemical industry, paper making, petroleum refining, cleaning compounds, and drain cleaners.

Application

Sodium hydroxide can be used as:
  • A reagent in the gold-catalyzed selective oxidation of glycerol to glyceric acid.
  • A catalyst for the cross-dehydrogenative coupling of alcohols and hydrosilanes to synthesize silyl ethers.
  • A base in the transition-metal free Sonogashira-type couplings of aryl halides and alkynes to synthesize ynones in the presence of PEG as a phase-transfer agent.

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H290,H314

Classification des risques

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
SDBB2611
STBL3357
SDBB1222
STBL0313
STBK8971

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Consulter la Bibliothèque de documents

Chemoselective, solvent-free aldol condensation reaction.
Raston CL and Scott JL.
Green Chemistry, 2(2), 49-52 (2000)
Determination of specific surface area of colloidal silica by titration with sodium hydroxide.
Sears Jr GW.
Analytical Chemistry, 28(12), 1981-1983 (1956)
Silvio Carrettin et al.
Chemical communications (Cambridge, England), (7)(7), 696-697 (2002-07-18)
Glycerol is oxidised to glyceric acid with 100% selectivity using either 1% Au/charcoal or 1% Au/graphite catalyst under mild reaction conditions (60 degrees C, 3 h, water as solvent).
Kinetics of sodium borohydride direct oxidation and oxygen reduction in sodium hydroxide electrolyte: Part I. BH4- electro-oxidation on Au and Ag catalysts.
Chatenet M, et al.
Electrochimica Acta, 51(25), 5459-5467 (2006)
M A Roberts et al.
Analytical chemistry, 69(11), 2035-2042 (1997-06-01)
This report describes a UV laser photoablation method for the production of miniaturized liquid-handling systems on polymer substrate chips. The fabrication of fluid channel and reservoir networks is accomplished by firing 200 mJ pulses from an UV excimer laser at
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Questions

1–3 of 3 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

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  2. 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

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  3. What is the weight of one pellet?

    1 answer

    1. Unfortunately, no additional testing for the weight of one pellet is determined.

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