Potassium Dicyanoaurate







Product Name:   Potassium Dicyanoaurate

Formula:             KAu(CN)2

Supplier:             ESPI Metals

                           1050 Benson Way

                           Ashland, OR 97520

Telephone:         800-638-2581

Fax:                    541-488-8313

Email:                 This email address is being protected from spambots. You need JavaScript enabled to view it.

Emergency:        Infotrac 800-535-5053 (US) or 352-323-3500 (24 hour)

Recommended Uses:  Scientific Research




GHS Classification (29 CFR 1910.1200): Acute toxicity - oral, category 2, Acute toxicity - dermal, category 1, Acute toxicity - inhalation, category 2.

GHS Label Elements:


Signal Word: Danger

Hazard Statements: H300 Fatal if swallowed, H310 Fatal in contact with skin, H330 Fatal if inhaled.

Precautionary Statements:   P260 Do not breath dust or fume, P262 Do not get in eyes, on skin, or on clothing, P264 Wash hands thoroughly after handling, P270 Do not eat, drink or smoke when using this product, P271 Use only outdoors or in a well-ventilated area, P280 Wear protective gloves/protective clothing/eye protection/face protection, P284 Wear respiratory protection, P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician, P302+P350 IF ON SKIN: gently wash with plenty of soap and water, P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing, P310 Immediately call a POISON CENTER or doctor/physician, P330 Rinse mouth, P361 Remove/Take off immediately all contaminated clothing, P363 Wash contaminated clothing before reuse, P403+P233 Store in a well-ventilated place. Keep container tightly closed, P405 Store locked up, P501 Dispose of contents/container in accordance with local, state or federal regulations.




Ingredient:     Potassium Dicyanoaurate

CAS#:              13967-50-5

%:                   100

EC#:                237-748-4

Common Names and Synonyms: Aurate(1-), bis(cyano-C)-, potassium; gold(I) potassium cyanide; potassium gold cyanide.




General Measures: Remove patient from area of exposure.

INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. Seek immediate medical attention.

INGESTION: Quickly wipe material from mouth and rinse with water. Do not induce vomiting. Seek medical attention immediately.

SKIN: Remove contaminated clothing if necessary. Immediately wash the affected area with soap and water. Seek immediate medical attention.

EYES: Immediately flush eyes with copious amounts of water, including under eyelids. Seek immediate medical attention.

Most Important Symptoms/Effects, Acute and Delayed: May cause nausea and vomiting. See section 11 for more information.

Indication of Immediate Medical Attention and Special Treatment: No other relevant information available.




Extinguishing Media: Use gentle surface application of Class D or dry, inert granular material such as sand to cover and ring the burning material.

Unsuitable Extinguishing Media: No information available.

Specific Hazards Arising from the Material: May emit toxic hydrogen cyanide and/or potassium oxide fumes under fire conditions.

Special Protective Equipment and Precautions for Firefighters: Full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes.




Personal Precautions, Protective Equipment, and Emergency Procedures: Wear appropriate respiratory and protective equipment specified in section 8. Isolate spill area and provide ventilation. Avoid breathing dust or fume. Avoid contact with skin and eyes. Eliminate all sources of ignition.

Methods and Materials for Containment and Cleaning Up: Sweep or scoop up. Avoid raising dust. Place in properly labeled closed containers. Scrap can be collected for recycling.

Environmental Precautions: Do not flush to sewer, stream, or other bodies of water. Do not allow to enter drains or to be released to the environment.




Precautions for Safe Handling: Handle in an enclosed, controlled process. Avoid exposure to high temperature. Avoid creating dust. Provide adequate ventilation if dusts are created. Avoid breathing dust or fumes. Avoid contact with skin and eyes. Wash thoroughly before eating or smoking. See section 8 for information on personal protection equipment.

Conditions for Safe Storage, Including Any Incompatibilities: Store in tightly sealed containers. Store in a cool, dry, well-ventilated area. Protect from moisture. Do not store together with acids. See section 10 for more information on incompatible materials.




Exposure Limits:              OSHA/PEL:                              ACGIH/TLV:

Potassium Dicyanoaurate     No exposure limit established     No exposure limit established

Cyanides (as CN)                5 mg/m3                                  5 mg/m3, salts

Appropriate Engineering Controls: Whenever possible the use of local exhaust ventilation or other engineering controls is the preferred method of controlling exposure to airborne dust and fume to meet established occupational exposure limits. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.

Individual Protection Measures, Such as Personal Protective Equipment:

   Respiratory Protection: When potential exposures are above the occupational limits, approved respirators must be used.

   Eye Protection: NIOSH approved safety goggles.

   Skin Protection: Wear impermeable gloves, protective work clothing.





Form:                 Crystalline powder

Color:                 White

Odor:                  Not determined

Odor Threshold: Not determined

pH:                                              N/A

Melting Point:                             No data

Boiling Point:                              No data

Flash Point:                                 N/A

Evaporation Rate:                       N/A

Flammability:                             No data

Upper Flammable Limit:             No data

Lower Flammable Limit:             No data

Vapor Pressure:                          No data

Vapor Density:                            N/A

Relative Density (Specific Gravity):     3.45 g/cc

Solubility in H2O:                        14.3 g/100 ml

Partition Coefficient (n-octanol/water):   Not determined

Autoignition Temperature:         No data

Decomposition Temperature:     No data

Viscosity:                                     N/A




Reactivity: No specific test data available.

Chemical Stability: Stable under recommended storage conditions.

Possibility of Hazardous Reactions: Contact with acids liberates toxic hydrogen cyanide gas.

Conditions to Avoid: Extreme heat, moisture.

Incompatible Materials: All acids, ammonia, organic solvents, zinc and aluminum metal powders, oxidizers.

Hazardous Decomposition Products: Hydrogen cyanide, potassium oxide, nitrogen oxide, carbon monoxide, carbon dioxide.




Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure: May cause rapid breathing, headache, vertigo, lack of motor coordination, weak pulse, cardiac arrhythmias, vomiting, stupor, convulsions, coma and death.

Acute and Chronic Effects:

Potassium Compounds: The toxicity of potassium compounds is almost always that of the anion, not of potassium.

Gold Compounds: Parenteral administration of therapeutic gold salts has been associated with toxic effects including irritation, rashes or blistering to skin and mucous membranes, allergic reactions, and damage to blood, kidneys, liver and lungs. Dermal and pulmonary effects are mainly associated with chrysotherapy and exposure by intramuscular or intravenous route. Generally gold compounds are poorly absorbed when ingested but may cause gastrointestinal symptoms including nausea, vomiting and diarrhea. No studies for inhalation exposure were found.

Cyanides: There are no qualitative differences in acute poisoning between cyanide compounds, since the cyanide ion is the common agent that primarily inhibits tissue cytochrome oxidase activity. Cyanides are well absorbed via ingestion, dermal or inhalation routes of exposure. Once absorbed, cyanide is rapidly and ubiquitously distributed throughout the body. The primary targets of cyanide toxicity in humans are the cardiovascular, respiratory, and central nervous systems. Massive doses may produce, without warning, sudden loss of consciousness and prompt death from respiratory arrest. With smaller but still lethal doses, the illness may be prolonged for 1 or more hours. Typical signs of acute cyanide poisoning include rapid breathing, headache, vertigo, lack of motor coordination, weak pulse, cardiac arrhythmias, vomiting, stupor, convulsions, and coma. A bright pink coloration of the skin due to high concentrations of oxyhemoglobin in venous blood may be confused with that of carbon monoxide poisoning.

Acute Toxicity: No data

Carcinogenicity: NTP: Not identified as carcinogenic   IARC: Not identified as carcinogenic

To the best of our knowledge the chemical, physical and toxicological characteristics of the substance are not fully known.




Ecotoxicity: No data

Persistence and Degradability: No data

Bioaccumulative Potential: No data

Mobility in Soil: No data

Other Adverse Effects: Do not allow material to be released to the environment. No further relevant information available.




Waste Disposal Method:

Product: Dispose of in accordance with Federal, State and Local regulations.

Packaging: Dispose of in accordance with Federal, State and Local regulations.




UN Number:                           UN1588

UN Proper Shipping Name:   Cyanides, inorganic, solid, n.o.s. (Potassium Dicyanoaurate)

Transport Hazard Class:       6.1

Packing Group:                      I

Marine Pollutant:                   Yes




TSCA Listed: Yes

DSL Listed: Yes

Regulation (EC) No 1272/2008 (CLP): Acute toxicity - oral, category 2, Acute toxicity - dermal, category 1, Acute toxicity - inhalation, category 2, Hazardous to the aquatic environment - acute hazard, category 1, Hazardous to the aquatic environment - chronic hazard, category 1.

WHMIS 2015 Classification: Acute toxicity - oral, category 2, Acute toxicity - dermal, category 1, Acute toxicity - inhalation, category 2.

HMIS Ratings: Health: 4     Flammability: 0     Physical: 0

NFPA Ratings: Health: 4     Flammability: 0     Instability: 0

Chemical Safety Assessment: A chemical safety assessment has not been carried out.




The information contained in this document is based on the state of our knowledge at the time of publication and is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI Metals makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. ESPI Metals shall not be held liable for any damages resulting from handling or from contact with the above product. Users should satisfy themselves that they have all current data relevant to their particular use.


Prepared by:              ESPI Metals

Revised/Reviewed:   April 2017