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Merck
CN

757527

Sodium hydroxide

ultra dry, powder or crystals, 99.99% trace metals basis

Synonym(s):

Caustic soda

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About This Item

Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-185-5
MDL number:
Assay:
99.99% trace metals basis
Form:
powder or crystals
Solubility:
water: soluble 1260 g/L at 20 °C
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vapor density

>1 (vs air)

Quality Segment

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

assay

99.99% trace metals basis

form

powder or crystals

reaction suitability

core: sodium

impurities

≤150.0 ppm Trace Metal Analysis

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm3

application(s)

electroplating
material synthesis precursor

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

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



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