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Cuprous potassium cyanide

HCID 61666
NotesReactions
Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
13682-73-0
Standard SMILES
[C-]#N.[C-]#N.[Cu+].[K+]
InChIKey
IVDPWEKOUUEEBD-UHFFFAOYSA-N
Molecular formula
KCu(CN)2
Average molar mass
154.68 g/mol
Monoisotopic mass
153.899452

Overview

Potassium cuprocyanide appears as a white crystalline solid. Denser than water. Contact may cause irritation to skin, eyes, and mucous membranes. May be toxic by ingestion and inhalation.

Names & identifiers

Preferred name
Cuprous potassium cyanide
IUPAC
potassium;copper(1+);dicyanide

Names & synonyms

Cuprous potassium cyanidePotassium dicyanocupratePotassium copper(I) cyanideCopper(I) potassium cyanidePotassium cuprocyanidePotassium dicyanocuprate(1-)Cuprate(1-), dicyano-, potassiumEINECS 237-192-2J77YMP09YDCuprate(1-), bis(cyano-kappaC)-, potassiumDTXSID901014552Cuprate(1-), bis(cyano-kappaC)-, potassium (1:1)
Show more names
Potassiocuprous cyanideCuprate(1-), bis(cyano-C)-, potassiumRefChem:580053Potassium dicyanocuprate(1)Cuprate(1), dicyano, potassiumDTXCID701473148Cuprate(1), bis(cyanokappaC), potassiumBis(cyanokappaC)cuprate(1) potassium (1:1)

Database identifiers

CAS
13682-73-0
PubChem CID
61666
DTXSID
DTXSID901014552
EC Number
237-192-2

Properties

Computed structural properties

Topological polar surface area
47.6 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
4
Rotatable bonds
0
Heavy atoms
6
Formal charge
0
Complexity
31.6

Experimental & physicochemical properties

Chemical ClassesToxic Gases & Vapors -> Cyanides
Physical Description · 3 items

Potassium cuprocyanide appears as a white crystalline solid. Denser than water. Contact may cause irritation to skin, eyes, and mucous membranes. May be toxic by ingestion and inhalation.

Other Solid

White solid; Contains at least 26% copper and 1-3% free KCN; [Hawley] Reddish, lustrous, odorless solid; Inslouble in water; [MP Biomedicals MSDS]

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 6 items

Danger

H300 (100%): Fatal if swallowed [Danger Acute toxicity, oral]

P260, P262, P264, P270, P271, P273, P280, P284, P301+P316, P302+P352, P304+P340, P316, P320, P321, P330, P361+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Danger

H316: Causes mild skin irritation [Warning Skin corrosion/irritation]

Hazard information

Regulatory Information · 1 item

Cuprate(1-), bis(cyano-.kappa.C)-, potassium (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cuprate(1-), bis(cyano-.kappa.C)-, potassium (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

DOT LabelPoison
Fire Hazards · 2 items

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Health Hazards · 2 items

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

· TOXIC and/or CORROSIVE; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.

Hazards Summary · 1 item

Acute copper poisoning after ingestion can cause liver injury, methemoglobinemia, and hemolytic anemia. Acute renal failure may result, secondary to massive hemoglobinuria. [Goldfrank, p. 1259] An irritant; [MP Biomedicals MSDS] See Copper and CYANIDES.

Chemistry & industry

Uses & manufacturing

Uses · 2 items

Used in cyanide copper plating baths; [Hawley] Used in electroplating of copper and brass; [Merck Index]

Electroplating [Category: Plate]

U.S. Production2023: 11,000 lb
Industry UsesPlating agent
General Manufacturing Information · 2 items

Fabricated Metal Product Manufacturing

Cuprate(1-), bis(cyano-.kappa.C)-, potassium (1:1): ACTIVE

Related reactions

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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
DOT ID and Guide1679 157
Reactive GroupCyanides, Inorganic
Reactivity Profile · 1 item

POTASSIUM CUPROCYANIDE is an inorganic cyanide. Members of this class that contain heavy metals tend to explosive instability, most of them are capable of violent oxidation under certain condition; fusion of metal cyanides with metal chlorates, perchlorates, nitrates or nitrites can cause violent explosions [Bretherick 1979. p. 101].

DOT Hazard Classification · 6 items

Potassium cuprocyanide

Severe marine pollutant

Potassium cuprocyanide

UN1679

Div 6.1 Poisonous materials (49 eCFR § 173.132)

PG II: the degree of danger presented by the material is medium

Air and Water ReactionsWater soluble.
Hazard Classes and Categories · 2 items

Acute Tox. 2 (100%)

Skin corrosion/irritation - Category 3

Safety & protection

Fire FightingExcerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:
Accidental Release Measures · 2 items

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

First Aid · 2 items

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

General First Aid:

Exposure Control and Personal Protection · 2 items

· Wear positive pressure self-contained breathing apparatus (SCBA).

2.0 [mg/m3], inhalable fraction, as CN (0.01 mg/m3, respirable fraction-Cu inorganic cmpds)[German Research Foundation (DFG)]

Nonfire Spill ResponseExcerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:
Isolation and Evacuation · 2 items

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

Immediate precautionary measure

Permissible Exposure Limit (PEL)5.0 [mg/m3], as CN
Personal Protective Equipment (PPE)Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:
Emergency Response Planning Guidelines· Note: Some foams will react with the material and release corrosive/toxic gases.
Immediately Dangerous to Life or Health (IDLH)25.0 [mg/m3], as CN

Toxicology

Adverse EffectsOccupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.