Skip to Content
Merck

Skip To

901915

Sodium hydroxide

anhydrous, free-flowing, Redi-Dri, reagent grade, ≥98%, pellets

Synonym(s):

Caustic soda

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice

About This Item

Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
UNSPSC Code:
12352302
NACRES:
NA.21
MDL number:
Assay:
≥98%
Grade:
anhydrous, reagent grade
Form:
pellets
Solubility:
water: soluble 1260 g/L at 20 °C
Pricing and availability is not currently available.
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


grade

anhydrous, reagent grade

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

product line

Redi-Dri

assay

≥98%

form

pellets

quality

free-flowing

impurities

≤1.0% sodium carbonate

pH

14 (20 °C, 50 g/L)

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

General description

Redi-Dri technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri saves you time, energy and money by keeping your salts usable for longer!

Application

  • Sodium hydroxide has been used in the staining procedure of cells.
  • It has been used in the procedure of decellularizing human amniotic membrane for cell culture.
  • It has been used for chemical inactivation of fluorophores in immunostained cells.[1]

Features and Benefits

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety – Avoid risks of using tools of force to break up clumps
  • Economy – Faster preparation and solvation increase productivity and reduce costs
  • Assured quality – Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes – Available from research amounts to scale-up quantities

Packaging

Bulk packages

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
7954291.37020221465
form

pellets

form

pellets

form

pellets, solid

form

pellets

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: 1090 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

assay

≥98%

assay

≥97%

assay

≥98.0-100.5% (total alkilinity calculated as NaOH)

assay

≥97.0%

grade

anhydrous, reagent grade

grade

ACS reagent, anhydrous

grade

-

grade

ACS reagent

impurities

≤1.0% sodium carbonate

impurities

≤0.001% N compounds, ≤0.02% NH4OH ppt., ≤1.0% Na2CO3

impurities

-

impurities

≤0.001% N compounds, ≤0.02% NH4OH ppt., ≤1.0% Na2CO3

pH

14 (20 °C, 50 g/L)

pH

-

pH

>14 (20 °C, 100 g/L in H2O)

pH

(ca.> 14 at 100 g/l at 20 °C)


Still not finding the right product?

Explore all of our products under Sodium hydroxide


pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

Storage Class

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

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Questions

1–3 of 3 Questions  
  1. How does Redi-Dri™ help keep salts and buffers free-flowing?

    1 answer
    1. Redi-Dri™ products are specially handled and the bottle is specially designed to ensure that the product will remain dry without adding impurities or additives to the product. Ensuring that you receive the highest quality material that is easy to handle.

      Helpful?

  2. How long will material remain free-flowing after it is opened?

    1 answer
    1. While the exact amount of time your material will remain free-flowing can vary, this largely depends on the ambient storage conditions and how many times it is opened.

      Helpful?

  3. Are there any special storage conditions that must be maintained?

    1 answer
    1. No, Redi-Dri™ products can be stored under the same conditions as the equivalent non-Redi-Dri™ products.

      Helpful?

Reviews

No rating value

Active Filters