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1.06498

Sodium hydroxide

pellets for analysis EMSURE®

Synonym(s):

Caustic soda

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About This Item

Linear Formula:
NaOH
CAS Number:
1310-73-2
Molecular Weight:
40.00
NACRES:
NA.21
EC Index Number:
215-185-5
UNSPSC Code:
12352305
MDL number:
MFCD00003548
Assay:
≥99% NaOH basis (acidimetric)
Form:
pellets
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Quality Segment

300

agency

suitable for SM 4500 - NH3

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

product line

EMSURE®

assay

≥99% NaOH basis (acidimetric)

form

pellets

impurities

≤0.0003% Total nitrogen (N)

pH

>14 (20 °C, 100 g/L in H2O)

mp

318 °C (lit.)

solubility

1090 g/L

density

2.13 g/cm3 at 20 °C

anion traces

carbonate (as Na2CO3): ≤1%, chloride (Cl-): ≤0.012%, phosphate (PO43-): ≤0.0005%, silicate (as SiO2): ≤0.001%, sulfate (SO42-): ≤0.010%

cation traces

Al: ≤0.0005%, As: ≤0.0001%, Ca: ≤0.0005%, Cu: ≤0.0002%, Fe: ≤0.0005%, K: ≤0.05%, Mg: ≤0.0005%, Ni: ≤0.00025%, Pb: ≤0.0005%, Zn: ≤0.001%, heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

General description

Sodium hydroxide (caustic soda) is an inorganic source of hydroxide ions that can be used to alkylate phenols, alcohols, aldehydes, and ketones. NaOH can also be used to convert amides into amines, to produce dichlorocarbenes, and in saponification of carboxylic acid derivatives.

Application

Sodium hydroxide may be used:
  • As a deprotonator in the synthesis of nanoparticles of zeolitic imidazolate framework (ZIF-94).
  • As a precipitating agent in the synthesis of NiO (nickel oxide) nanoparticles using nickel nitrate.
  • As a pH controller in the synthesis of zinc chromite (ZnCr2O4) oxide powder from zinc nitrate and chromium nitrate by hydrothermal process.

Analysis Note

Assay (acidimetric,NaOH): ≥ 99.0 %
Carbonate (as Na₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 0.012 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.010 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.05
Mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.00025 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.001 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

8B - Non-combustible corrosive hazardous materials

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

1064981000: + 1064985000: + MX11064980500: + 1064989025: + CO1E1064981000: + 1064980500: + 1.06498.1000DISC: + 1064985024: + CO11064989051: + 1064980000: + 1064981007: + 1064989050:

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