221465
Sigma-Aldrich

Sodium hydroxide

ACS reagent, ≥97.0%, pellets

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Synonym

'Caustic soda'

Molecular Formula

NaOH

Molecular Weight

40.00

CAS Number

1310-73-2

MDL number

MFCD00003548

PubChem Substance ID

24853242

EG/EC Number

215-185-5

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Descriptions

Packaging

12 kg in poly drum

12kg packaged in open-head poly drums; 25g, 500g, 2.5kg packaged in poly bottles

2.5 kg in poly btl

25, 500, 6×500 g in poly btl

Properties

grade

ACS reagent

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)

3 mmHg ( 37 °C)

assay

≥97.0%

form

pellets

total impurities

≤0.001% N compounds

≤0.02% NH₄OH ppt.

≤1.0% Na₂CO₃

318 °C(lit.)

density

2.13 g/mL at 25 °C(lit.)

anion traces

chloride (Cl^-): ≤0.005%

phosphate (PO₄^-): ≤0.001%

sulfate (SO₄^2-): ≤0.003%

cation traces

Fe: ≤0.001%

Hg: ≤0.1 ppm

K: ≤0.02%

Ni: ≤0.001%

heavy metals (as Ag): ≤0.002%

References

Merck

Merck 13,8701

Fieser

Fieser 5,616 / Fieser 7,336 / Fieser 8,460

reference

Aldrich MSDS 1, 1611:A / Corp MSDS 1 (2), 3144:A / RegBook 1 (3), 3363:C / Sax 6, 2434

Safety

Hazard Codes

Risk Statements

Safety Statements

26-37/39-45

RIDADR

UN1823 8/PG 2

WGK Germany

RTECS

WB4900000

Related Categories

... Acids & Bases > ACS Grade

... Synthetic Reagents > Inorganic Bases

... Adsorbents, Filter Aids and Drying Agents > Other Drying Agents

MSDS

Specification Sheet

Certificate of Analysis

Certificate of Origin

More Information