Silver cyanide

Guidance on Safe Use

First-aid measures

General advice: Move out of dangerous area. Immediate medical attention is required. Show the safety data sheet to the doctor in attendance. Remove victim to fresh air and keep at rest in a position comfortable for breathing. Loosen tight clothing such as a collar, tie, belt or waistband. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by trained personnel. Do not leave the victim unattended. The following recommendations in respect of first aid and therapy should be made available to all First Aid Officers and Doctors, who could be called upon to render first aid, before work with cyanide/hydrocyanic acid is started. Adverse health effects could include the following: Headache, dizziness/vertigo, nausea or vomiting, convulsive seizures, unconsciousness, shortness of breath/breathing difficulty, cardiac arrest or heart failure. Take off immediately all contaminated clothing. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. No mouth-to-mouth or mouth-to-nose artificial respiration. Use artificial respiration bag or respirator. Keep person warm and at rest. If unconscious, place in recovery position and get medical attention immediately.

Protection of first-aiders: No action shall be taken involving any personal risk or without suitable training. If it is suspected that fumes are still present, the rescuer should wear an appropriate mask or self-contained breathing apparatus. It may be dangerous to the person providing aid to give mouth-to-mouth resuscitation. Wash contaminated clothing thoroughly with water before removing it, or wear gloves.

If inhaled: Call emergency doctor immediately (alarm report: cyanide / hydro-cyanic acid poisoning). If unconscious, place in recovery position and get medical attention immediately. In case of inhalation of decomposition products in a fire, symptoms may be delayed.

In case of skin contact: Take victim immediately to hospital. Wash contaminated clothing before reuse. Immediately remove the substance from the skin. If on skin, rinse well with water. Flush contaminated skin with plenty of water.

In case of eye contact: Small amounts splashed into eyes can cause irreversible tissue damage and blindness. Remove contact lenses. In the case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Continue rinsing eyes during transport to hospital. Protect unharmed eye. Keep eye wide open while rinsing. If eye irritation persists, consult a specialist.

If swallowed: Clean mouth with water and drink afterwards plenty of water. Call emergency doctor immediately (alarm report: cyanide / hydro-cyanic acid poisoning). Keep respiratory tract clear. Do NOT induce vomiting. Rinse mouth with water. Never give anything by mouth to an unconscious person. Take victim immediately to hospital.

Fire-fighting measures

Suitable extinguishing media: alkali powder quenching agent, foam. Unsuitable extinguishing media: Carbon dioxide (CO2), high volume water jet, acidic quenching agents. Specific hazards during fire-fighting: Do not allow run-off from fire fighting to enter drains or water courses. Hazardous combustion products: Hazardous decomposition products due to incomplete combustion, Metal oxides, Nitrogen oxides (NOx), Hydrogen cyanide (hydrocyanic acid). Special protective equipment for firefighters: Wear self-contained breathing apparatus for firefighting if necessary. Further information: Collect contaminated fire extinguishing water separately. This must not be discharged into drains. Fire residues and contaminated fire extinguishing water must be disposed of in accordance with local regulations.

Accidental release measures

Personal precautions: Use personal protective equipment. Avoid dust formation. Avoid breathing dust. Environmental precautions: Prevent product from entering drains. Prevent further leakage or spillage if safe to do so. If the product contaminates rivers and lakes or drains inform respective authorities. Methods for cleaning up: Keep in suitable, closed containers for disposal.

Handling and storage

Advice on safe handling: Avoid formation of respirable particles. Do not breathe vapours/dust. Avoid contact with skin and eyes. Smoking, eating and drinking should be prohibited in the application area. Dispose of rinse water in accordance with local and national regulations. Advice on protection against fire and explosion: Avoid dust formation. Provide appropriate exhaust ventilation at places where dust is formed. Hygiene measures: Avoid contact with skin, eyes and clothing. When using do not eat or drink. When using do not smoke. Wash hands before breaks and immediately after handling the product.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

1684

Shipping

Labels:

6.1, symbol for fish & tree

Special provisions / remarks

Remarks:

tunnel limitation code D/E

Inland waterway transport (UN RTDG/ADN(R))

UN number:

1684

Shipping

Labels:

6.1, symbol for fish & tree

Remarks

Marine transport (UN RTDG/IMDG)

UN number:

1684

Shipping information

Proper shipping name and description:

silvercyanide

Chemical name:

silver cyanide

Labels:

6.1 symbol for fish & tree

Marine pollutant

Special provisions / remarks

Remarks:

symbol for fish & tree

Air transport (UN RTDG/ICAO/IATA)

UN number:

1684

Shipping information

Proper shipping name and description:

silvercyanide

Chemical name:

silver cyanide

Labels:

6.1

Remarks

SpecialProvisions

Exposure controls / personal protection

1. Technical protection measures

Additional information about design of technical facilities: No further data.

· Control parameters

· Ingredients with limit values that require monitoring at the workplace:

silver cyanide

WEL Long-term value: 0.01 mg/m³ as Ag

· DNELs

Oral DNEL(Com.)longterm 0.05 mg/kg (-) (CN)

DNEL(Comm.)akut 4.5 mg/kg (-) (CN)

DNEL(Indust.)longt. 0.05 mg/kg (-) (CN)

DNEL(Industrie) akut 4.5 mg/kg (-) (CN)

· PNECs

PNEC (Commercial) 0.03 μg/l (H2O) (CN)

PNEC (Industrie) 0.03 μg/l (H2O) (CN)

2. Organisational protection measures

· General protective and hygienic measures:

Keep away from foodstuffs, beverages and feed. Immediately remove all soiled and contaminated clothing

Wash hands before breaks and at the end of work. Store protective clothing separately. Avoid contact with the eyes and skin.

3. Hand protection

· Protection of hands: Protective gloves

· Material of gloves:

Chloroprene rubber, CR

Butyl rubber, BR

Fluorocarbon rubber (Viton)

Nitrile rubber, NBR

· Penetration time of glove material

The determined penetration times according to EN 374 part III are not performed under practical conditions.

Therefore a maximum wearing time, which corresponds to 50% of the penetration time, is recommended.

· Not suitable are gloves made of the following materials:

Strong material gloves

Leather gloves

4. Body protection

Protective work clothing

5. Eye protection

Tightly sealed goggles

6. Respiratory protection

Use suitable respiratory protective device in case of insufficient ventilation.

Filter B

Filter P3

Stability and reactivity

· Thermal decomposition / conditions to be avoided: Stable up to melting point.

· Possibility of hazardous reactions Contact with acids releases toxic gases.

· Conditions to avoid No further relevant information available.

· Incompatible materials: No further relevant information available.

· Hazardous decomposition products: Hydrogen cyanide (prussic acid)

Disposal considerations

Waste treatment methods

· Recommendation

Must not be disposed together with household garbage. Do not allow product to reach sewage system.

Must be specially treated adhering to official regulations.

Contact manufacturer for recycling information.

· European waste catalogue

06 00 00 WASTES FROM INORGANIC CHEMICAL PROCESSES

06 03 00 wastes from the MFSU of salts and their solutions and metallic oxides

06 03 11* solid salts and solutions containing cyanides

Uncleaned packaging:

· Recommendation:

Empty contaminated packagings thoroughly. They may be recycled after thorough and proper cleaning. Packagings that may not be cleansed are to be disposed of in the same manner as the product.

· Recommended cleansing agents: Water, if necessary together with cleansing agents.