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Merck
CN

S0899

Sigma-Aldrich

Sodium hydroxide

ACS reagent, ≥97.0%, pellets

Synonym(s):

‘Caustic soda’

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About This Item

Linear Formula:
NaOH
CAS Number:
1310-73-2
Molecular Weight:
40.00
EC Number:
215-185-5
MDL number:
MFCD00003548
UNSPSC Code:
12352106

Key Documents

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grade

ACS reagent

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

Assay

≥97.0%

form

pellets

impurities

≤0.001% Nitrogen compounds (as N)
≤0.02% Ammonium hydroxide precipitate
≤1.0% Na2CO3

mp

318 °C (lit.)

anion traces

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.003%

cation traces

Fe: ≤0.001%
Hg: ≤0.1 ppm
K: ≤0.02%
Ni: ≤0.001%
heavy metals (as Ag): ≤0.002%

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
128H0171
121K0126
121K0125
119H0169
103H0830

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Inanc Birol et al.
PloS one, 10(6), e0130720-e0130720 (2015-06-30)
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S Austin Hammond et al.
General and comparative endocrinology, 219, 6-15 (2015-01-15)
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Hadi Shafiee et al.
Scientific reports, 5, 9919-9919 (2015-06-06)
We report a biosensing platform for viral load measurement through electrical sensing of viruses on a flexible plastic microchip with printed electrodes. Point-of-care (POC) viral load measurement is of paramount importance with significant impact on a broad range of applications
C Nagelreiter et al.
International journal of pharmaceutics, 491(1-2), 162-169 (2015-06-29)
The tape stripping method is a very important tool for dermopharmacokinetic experiments in vitro and the accurate measurement of the removed corneocytes is key for a reliable calculation of a drug's skin penetration behavior. Therefore, various methods to quantify the

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