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1.04967

Supelco

Potassium cyanide

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

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Synonym(s):
Potassium cyanide, Cyanogen potassium
Empirical Formula (Hill Notation):
CKN
CAS Number:
Molecular Weight:
65.12
MDL number:
EC Index Number:
205-792-3

grade

ACS reagent

Quality Level

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE®

Assay

≥97% (silver nitrate titration)

form

solid

potency

7.49 mg/kg LD50, oral (Rat)
14.29 mg/kg LD50, skin (Rabbit)

pH

11-12 (20 °C, 20 g/L in H2O)

bp

1625 °C/1013 hPa

mp

634 °C

density

1.55 g/cm3 at 20 °C

bulk density

750 kg/m3

anion traces

chloride (Cl-): ≤0.02%
phosphate (PO43-): ≤0.005%
sulfate (SO42-): ≤0.01%
sulfide (S2-): ≤0.0005%
thiocyanate (SCN-): ≤0.01%

cation traces

Fe: ≤0.01%
Na: ≤0.5%
Pb: ≤0.0002%

storage temp.

no temp limit

InChI

1S/CN.K/c1-2;/q-1;+1

InChI key

NNFCIKHAZHQZJG-UHFFFAOYSA-N

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1.049658.049571.05104
Potassium cyanide for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Supelco

1.04967

Potassium cyanide

Potassium cyanide EMPLURA®

Supelco

1.04965

Potassium cyanide

Potassium cyanate for synthesis

Sigma-Aldrich

8.04957

Potassium cyanate

assay

≥97% (silver nitrate titration)

assay

≥96% (silver nitrate titration)

assay

-

assay

≥99.0% (alkalimetric)

form

solid

form

solid

form

powder

form

solid

pH

11-12 (20 °C, 20 g/L in H2O)

pH

11-12 (20 °C, 20 g/L in H2O)

pH

10 (20 °C, 50 g/L in H2O)

pH

9 (20 °C, 10 g/L in H2O)

mp

634 °C

mp

634 °C

mp

315 °C

mp

-

density

1.55 g/cm3 at 20 °C

density

1.55 g/cm3 at 20 °C

density

2.056 g/cm3 at 20 °C

density

2.44 g/cm3 at 20 °C

Linkage

Replaces: PX1435; PX1435-5; PX1435-1; PX1435-20

Analysis Note

Assay (argentometric): ≥ 97.0 %
Chloride (Cl): ≤ 0.02 %
Phosphate (PO₄): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.01 %
Sulphide (S): ≤ 0.0005 %
Thiocyanate (SCN): ≤ 0.01 %
Fe (Iron): ≤ 0.01 %
Na (Sodium): ≤ 0.5 %
Pb (Lead): ≤ 0.0002 %
Corresponds to ACS,Reag. Ph Eur

Legal Information

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

Signal Word

Danger

Hazard Classifications

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

Target Organs

Thyroid

Supplementary Hazards

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


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