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901915

Sigma-Aldrich

Sodium hydroxide

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

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Synonym(s):
‘Caustic soda’
Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
MDL number:
NACRES:
NA.21

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

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1 of 4

This Item
79542971690S5881
Sodium hydroxide anhydrous, free-flowing, Redi-Dri&#8482;, reagent grade, &#8805;98%, pellets

Sigma-Aldrich

901915

Sodium hydroxide

-
Sodium hydroxide anhydrous, free-flowing, pellets, Redi-Dri&#8482;, ACS reagent, &#8805;97%

Sigma-Aldrich

795429

Sodium hydroxide

-
Sodium hydroxide puriss. p.a., ACS reagent, K &#8804;0.02%, &#8805;98.0% (T), pellets

Sigma-Aldrich

71690

Sodium hydroxide

-
Sodium hydroxide reagent grade, &#8805;98%, pellets (anhydrous)

Sigma-Aldrich

S5881

Sodium hydroxide

Essential Grade
vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

assay

≥98%

assay

≥97%

assay

≥98.0% (T)

assay

≥98%

form

pellets

form

pellets

form

pellets

form

pellets (anhydrous)

impurities

≤1.0% sodium carbonate

impurities

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

impurities

≤0.0003% total nitrogen (N), ≤0.0005% silicon dioxide (SiO2), ≤1.0% sodium carbonate (Na2CO3)

impurities

≤1.0% sodium carbonate

pH

14 (20 °C, 50 g/L)

pH

-

pH

-

pH

-

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.

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

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

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


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Jia-Ren Lin et al.
Nature communications, 6, 8390-8390 (2015-09-25)
Single-cell analysis reveals aspects of cellular physiology not evident from population-based studies, particularly in the case of highly multiplexed methods such as mass cytometry (CyTOF) able to correlate the levels of multiple signalling, differentiation and cell fate markers. Immunofluorescence (IF)
A simple alkaline method for decellularizing human amniotic membrane for cell culture.
Saghizadeh M et al.
PLoS ONE, 8, e79632-e79632 (2013)
BDNF Pretreatment of Human Embryonic-Derived Neural Stem Cells Improves Cell Survival and Functional Recovery After Transplantation in Hypoxic-Ischemic Stroke.
Rosenblum S et al.
Cell Transplantation, 24, 2449-2449 (2015)
Richard J Travers et al.
Blood, 124(22), 3183-3190 (2014-09-10)
Polyphosphate (polyP) is secreted by activated platelets and has been shown to contribute to thrombosis, suggesting that it could be a novel antithrombotic target. Previously reported polyP inhibitors based on polycationic substances, such as polyethylenimine, polyamidoamine dendrimers, and polymyxin B
Valdeir Arantes et al.
Biotechnology for biofuels, 7, 87-87 (2014-07-01)
There is still considerable debate regarding the actual mechanism by which a "cellulase mixture" deconstructs cellulosic materials, with accessibility to the substrate at the microscopic level being one of the major restrictions that limits fast, complete cellulose hydrolysis. In the

Articles

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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