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415413

Sigma-Aldrich

Sodium hydroxide solution

50% in H2O

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25 ML
$40.00
100 ML
$56.00
500 ML
$61.40
1 L
$94.30
4 L
$283.00
18 L
$559.00

$40.00

Estimated to ship onFebruary 10, 2025Details

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All Photos(1)

Select a Size

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25 ML
$40.00
100 ML
$56.00
500 ML
$61.40
1 L
$94.30
4 L
$283.00
18 L
$559.00

About This Item

Linear Formula:
NaOH
CAS Number:
1310-73-2
Molecular Weight:
40.00
MDL number:
MFCD00003548
UNSPSC Code:
12352316
PubChem Substance ID:
329756117
NACRES:
NA.21
concentration:
48-52% (by HCl, titration)
50% in H2O
Agency:
suitable for DIN 38407-42
suitable for EPA 533
suitable for EPA 8327
suitable for EPA OTM-45
suitable for SM 4500 - NH3
pH:
14

$40.00

Estimated to ship onFebruary 10, 2025Details

Request a Bulk Order

Agency

suitable for DIN 38407-42
suitable for EPA 533
suitable for EPA 8327
suitable for EPA OTM-45
suitable for SM 4500 - NH3

Quality Level

100

vapor pressure

3 mmHg ( 37 °C)

form

liquid (viscous)

concentration

48-52% (by HCl, titration)
50% in H2O

technique(s)

HPLC: suitable

pH

14

density

1.515 g/mL at 25 °C

storage temp.

room temp

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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General description

Sodium hydroxide solution is a strong alkali. It is utilized in making cellophane, rayon, bleaches, dyes and drugs. It is also employed to abstract hydrogen sulfide from petroleum and to degrade lignin in wood in the paper industry.[1]

Application

Sodium hydroxide solution may be used in the following processes:
  • As a dedoping reagent in the synthesis of graphene/polyaniline hybrid material.[2]
  • As a solvent in the weight loss study of aluminum by corrosion.4
  • Alkaline reagent test for tannins & phenolic compounds.[3]
  • Synthesis of single crystalline zinc stannate (Zn2SnO4 and ZnSnO3) nanoparticles.[4]
  • Estimation of protein content and α-cellulose content in grain by-products.[5]

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

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

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCW9887
MKCW0069
MKCV4859
MKCV9505
STBK9327

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Phytochemical investigation and chromatographic evaluation of the different extracts of tuber of Amorphaphallus paeoniifolius (Araceae).
De S and Ghosh AK.
International Journal of Pharmaceutical and Biomedical Research, 1(5), 150-157 (2010)
Single crystalline zinc stannate nanoparticles for efficient photo-electrochemical devices.
Miyauchi M, et al.
Chemical Communications (Cambridge, England), 46(9), 1529-1531 (2010)
Daly AO.
Sodium, 21-21 (2002)
Barley husk and coconut shell reinforced polypropylene composites: the effect of fibre physical, chemical and surface properties.
Bledzki AK, et al.
Composites Science and Technology, 70(5), 840-846 (2010)
A nanostructured graphene/polyaniline hybrid material for supercapacitors.
Wang H, et al.
Nanoscale, 2(10), 2164-2170 (2010)
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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. Is the concentration based on volume or weight?

    1 answer

    1. The concentration of this product is based on w/w. The molarity of this product is about 18.9 M.

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