MilliporeSigma
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1.07401

Supelco

Lead(II) oxide

for analysis EMSURE®

Synonym(s):
Lead(II) oxide
Empirical Formula (Hill Notation):
OPb
CAS Number:
Molecular Weight:
223.20
MDL number:
EC Index Number:
215-267-0

Quality Level

product line

EMSURE®

assay

≥99.0% (complexometric)

form

solid

impurities

≤0.05% Substances insoluble in dilute acetic acid
≤0.3% Substances not precipitated by hydrogen sulfide (as SO4)

loss

≤0.2% loss on ignition, 850 °C

pH

8-9 (20 °C, 100 g/L in H2O, slurry)

mp

888 °C

solubility

0.072 g/L

density

9.53 g/cm3 at 20 °C

bulk density

3500‑3700 kg/m3

anion traces

chloride (Cl-): ≤0.005%

cation traces

Ag: ≤0.002%
Bi: ≤0.02%
Cu: ≤0.001%
Fe: ≤0.002%
N: ≤0.001%

storage temp.

2-30°C

InChI

1S/O.Pb

InChI key

YEXPOXQUZXUXJW-UHFFFAOYSA-N

Analysis Note

Assay (complexometric): ≥ 99.0 %
Substances insoluble in dilute acetic acid: ≤ 0.05 %
Chloride (Cl): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Ag (Silver): ≤ 0.002 %
Bi (Bismuth): ≤ 0.02 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.002 %
Loss on ignition (850 °C): ≤ 0.2 %
Substances not precipitated by hydrogen sulfide (as SO₄): ≤ 0.3 %

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Lact. - Repr. 1A - STOT RE 1

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificate of Quality

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