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1.04466

Supelco

Mercury(II) oxide

red, for analysis EMSURE®

Synonym(s):

Mercury(II) oxide

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About This Item

Empirical Formula (Hill Notation):
HgO
CAS Number:
21908-53-2
Molecular Weight:
216.59
MDL number:
MFCD00011045
UNSPSC Code:
12352303
EC Index Number:
244-654-7
NACRES:
NA.21

vapor pressure

0.12 Pa ( 20 °C)

Quality Level

300

product line

EMSURE®

Assay

≥99.0% (complexometric)

form

solid

potency

18 mg/kg LD50, oral (Rat)

impurities

≤0.03% Substances insoluble in dilute hydrochloric acid

ign. residue

≤0.025% (substances not reducing by formic acid, as sulfate)

pH

6-7 (20 °C, 50 g/L in H2O, slurry)

mp

>400 °C (decomposition)

solubility

0.052 g/L

density

11.1 g/cm3 at 20 °C

bulk density

3000 kg/m3

anion traces

chloride (Cl-): ≤0.025%
sulfate (SO42-): ≤0.005%

cation traces

Cd: ≤0.0001%
Cu: ≤0.0005%
Fe: ≤0.01%
N: ≤0.005%
Pb: ≤0.0005%
Zn: ≤0.0005%

storage temp.

2-30°C

InChI

1S/Hg.O

InChI key

UKWHYYKOEPRTIC-UHFFFAOYSA-N

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Analysis Note

Assay (complexometric): ≥ 99.0 %
Substances insoluble in dilute hydrochloric acid: ≤ 0.03 %
Chloride (Cl): ≤ 0.025 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.005 %
Cd (Cadmium): ≤ 0.0001 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.01 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.0005 %
Substances not reducing by formic acid (Residue on ignition, as sulfate): ≤ 0.025 %

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Target Organs

Kidney

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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