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Registration Dossier
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EC number: 200-821-6 | CAS number: 74-90-8
Guidance on Safe Use
Guidance on Safe Use
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Administrative data
First-aid measures
General advice: SPEED IS ESSENTIAL. Immediately call a POISON CENTER or doctor/physician.
Protect yourself and any casualty from further exposure during decontamination. Wear breathing
apparatus and protective clothing until tests confirm no further risk from exposure.
Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing. Oxygen should be
administered. Apply artificial respiration if breathing has ceased or shows signs of failing. Appropriate
mechanical means should be used (Pneupac or bag and mask). Do not use mouth-to-mouth
resuscitation.
Skin Contact IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing and securely store
ready for disposal. Thoroughly decontaminate skin with copious amounts of water. Treat patient as
for inhalation.
Eye Contact Immediately irrigate with eyewash solution or clean water, holding the eyelids apart, for at least 10
minutes. Treat patient as for inhalation.
Ingestion If conscious, have patient expectorate and rinse the mouth with water. Do not induce vomiting. Treat
patient as for inhalation.
Most important symptoms and effects, both acute and delayed
Fatal if swallowed, in contact with skin or if inhaled.
High atmospheric concentrations may lead to instant collapse, respiratory failure, loss of consciousness and death. Low concentrations
will cause irritation of the respiratory tract, headache, dizziness, nausea, vomiting, general weakness and increased breathing
difficulties. May cause burns. Repeated and/or prolonged contact to very small quantities may cause irritation and eruptions with
possible secondary infection. Absorption through the eye may produce significant systemic effects.
Indication of any immediate medical attention and special treatment needed
IMPORTANT: It is the responsibility of the handler/user to ensure that appropriate Emergency Treatment provisions are available
BEFORE handling or use. Recognised methods for the Emergency Treatment of cyanide poisoning are known to vary from country to
country. Lucite International recommends Kelocyanor. This is the standard treatment in the United Kingdom. Lucite International
recognises that other treatments are available. The handler/user should agree the principal Emergency Treatment method to be used
with their local Medical Authority.
Symptomatic: If the patient is unconscious, or lapsing into unconsciousness, the intravenous antidote Di Cobalt EDTA (Kelocyanor),
should be used. Please note that this antidote must NOT be given prophylactically.
Method:
1) Ensure, by considerations of all the clinical facts, that the case is one of cyanide poisoning.
2) Fill a 20ml syringe with the contents of one ampoule of Di-cobalt EDTA ('Kelocyanor') and hold it ready.
3) Take an empty 5ml syringe, enter a vein and withdraw 5ml of blood and place 2.5ml in each of two 'blood sugar' specimen bottles
provided. These bottles should contain 5mg potassium oxalate and 5mg sodium fluoride.
4) Through the same needle, slowly inject the prepared dose of 20ml of Di-cobalt EDTA. 5) The initial effect is a fall of blood pressure,
rise in pulse rate, and sometimes retching. Immediately after this phase, lasting about one minute, the patient should recover.
6) A second dose may be given immediately if the response is inadequate.
7) Sodium thiosulphate, (12.5g in 50ml of water) can be given intravenously, if the attending Doctor considers that there has been no
response to the above.
8) The classical ancillary treatment for cyanide treatment should not be omitted, eg oxygen, resuscitation.
9) After treatment, the blood samples should be sent to a Forensic Science Laboratory for estimation of the blood cyanide level. Any
level above 0.25 mg/litre is dangerous; a level above 2.0 mg/litre is potentially fatal. A second blood specimen can be taken after
successful treatment and also estimated for any residual cyanide level. Blood cyanide is for record purposes only.
Protect yourself and any casualty from further exposure during decontamination. Wear breathing
apparatus and protective clothing until tests confirm no further risk from exposure.
Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing. Oxygen should be
administered. Apply artificial respiration if breathing has ceased or shows signs of failing. Appropriate
mechanical means should be used (Pneupac or bag and mask). Do not use mouth-to-mouth
resuscitation.
Skin Contact IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing and securely store
ready for disposal. Thoroughly decontaminate skin with copious amounts of water. Treat patient as
for inhalation.
Eye Contact Immediately irrigate with eyewash solution or clean water, holding the eyelids apart, for at least 10
minutes. Treat patient as for inhalation.
Ingestion If conscious, have patient expectorate and rinse the mouth with water. Do not induce vomiting. Treat
patient as for inhalation.
Most important symptoms and effects, both acute and delayed
Fatal if swallowed, in contact with skin or if inhaled.
High atmospheric concentrations may lead to instant collapse, respiratory failure, loss of consciousness and death. Low concentrations
will cause irritation of the respiratory tract, headache, dizziness, nausea, vomiting, general weakness and increased breathing
difficulties. May cause burns. Repeated and/or prolonged contact to very small quantities may cause irritation and eruptions with
possible secondary infection. Absorption through the eye may produce significant systemic effects.
Indication of any immediate medical attention and special treatment needed
IMPORTANT: It is the responsibility of the handler/user to ensure that appropriate Emergency Treatment provisions are available
BEFORE handling or use. Recognised methods for the Emergency Treatment of cyanide poisoning are known to vary from country to
country. Lucite International recommends Kelocyanor. This is the standard treatment in the United Kingdom. Lucite International
recognises that other treatments are available. The handler/user should agree the principal Emergency Treatment method to be used
with their local Medical Authority.
Symptomatic: If the patient is unconscious, or lapsing into unconsciousness, the intravenous antidote Di Cobalt EDTA (Kelocyanor),
should be used. Please note that this antidote must NOT be given prophylactically.
Method:
1) Ensure, by considerations of all the clinical facts, that the case is one of cyanide poisoning.
2) Fill a 20ml syringe with the contents of one ampoule of Di-cobalt EDTA ('Kelocyanor') and hold it ready.
3) Take an empty 5ml syringe, enter a vein and withdraw 5ml of blood and place 2.5ml in each of two 'blood sugar' specimen bottles
provided. These bottles should contain 5mg potassium oxalate and 5mg sodium fluoride.
4) Through the same needle, slowly inject the prepared dose of 20ml of Di-cobalt EDTA. 5) The initial effect is a fall of blood pressure,
rise in pulse rate, and sometimes retching. Immediately after this phase, lasting about one minute, the patient should recover.
6) A second dose may be given immediately if the response is inadequate.
7) Sodium thiosulphate, (12.5g in 50ml of water) can be given intravenously, if the attending Doctor considers that there has been no
response to the above.
8) The classical ancillary treatment for cyanide treatment should not be omitted, eg oxygen, resuscitation.
9) After treatment, the blood samples should be sent to a Forensic Science Laboratory for estimation of the blood cyanide level. Any
level above 0.25 mg/litre is dangerous; a level above 2.0 mg/litre is potentially fatal. A second blood specimen can be taken after
successful treatment and also estimated for any residual cyanide level. Blood cyanide is for record purposes only.
Fire-fighting measures
Extinguishing media
Suitable Extinguishing Media In case of fire, use water spray, foam, dry powder or CO2 for extinction.
Washings may contain cyanide. Do not allow to enter drains, sewers or watercourses.
Unsuitable Extinguishing Media Alkaline extinguishing media, water jet.
Special hazards arising from the substance or mixture
Extremely flammable liquid and vapour. In contact with heat or alkalis may polymerise with explosive force.
Advice for firefighters
A self contained breathing apparatus and full protective clothing should be worn in fire conditions.
Suitable Extinguishing Media In case of fire, use water spray, foam, dry powder or CO2 for extinction.
Washings may contain cyanide. Do not allow to enter drains, sewers or watercourses.
Unsuitable Extinguishing Media Alkaline extinguishing media, water jet.
Special hazards arising from the substance or mixture
Extremely flammable liquid and vapour. In contact with heat or alkalis may polymerise with explosive force.
Advice for firefighters
A self contained breathing apparatus and full protective clothing should be worn in fire conditions.
Accidental release measures
Personal precautions, protective equipment and emergency procedures:Ensure suitable personal protection (including respiratory protection) during removal of spillages. Evacuate the area. Gaseous emmisions from a pool can be greatly reduced by covering with a non-alkaline type concentrate foam.
Environmental precautions: Avoid release to the environment. If polluted water reaches drainage systems or water courses, immediately inform the appropriate
authorities.
Methods and material for containment and cleaning up
Allow to evaporate in open air, monitoring levels downwind to ensure unprotected personnel do not enter or remain in high exposure
areas. Alternatively it may be preferable to ignite the spillage or to allow it to continue to burn out if already alight. If these methods
cannot be adopted, dilute with large amounts of water, then treat with excess Sodium Hydroxide followed by Sodium Hypochlorite.
Environmental precautions: Avoid release to the environment. If polluted water reaches drainage systems or water courses, immediately inform the appropriate
authorities.
Methods and material for containment and cleaning up
Allow to evaporate in open air, monitoring levels downwind to ensure unprotected personnel do not enter or remain in high exposure
areas. Alternatively it may be preferable to ignite the spillage or to allow it to continue to burn out if already alight. If these methods
cannot be adopted, dilute with large amounts of water, then treat with excess Sodium Hydroxide followed by Sodium Hypochlorite.
Handling and storage
Precautions for safe handling: NEVER work alone. Ensure that ALL personnel are trained in handling and emergency procedures.
It is essential to prevent all contact with liquid or vapour. Hydrocyanic acid should only be handled in a suitable cubicle, with an induced
draught system fitted, ensuring adequate ventilation. Do not breathe vapour. Do not get in eyes, on skin, or on clothing. Use only
outdoors or in a well-ventilated area. Do not eat, drink or smoke when using this product. Wash thoroughly after handling. Atmospheric
levels should be controlled in compliance with the occupational exposure limit.
Conditions for safe storage, including any incompatibilities
NOTE: ONLY ACID STABILISED HYDROCYANIC ACID SHOULD BE STORED.
Cyanides should only be stored under CONTROLLED conditions in clearly designated areas.
Keep away from heat, sparks, open flame, hot surfaces - No smoking. Keep container tightly closed. Ground container and receiving
equipment. Use explosion-proof electrical/ventilating/lighting/equipment. Take precautionary measures against static discharge. Store in
a well-ventilated place. Keep cool. Store locked up. Keep container dry. Keep away from food and tobacco products.
Storage temperature (°C): Keep in a cool place.
Storage life 1 year
Incompatible materials: Keep away from alkalis, oxidising agents, flammable and combustible materials.
Concentrated Sulphuric acid.
Specific end use(s). Industrial use as an intermediate under strictly controlled conditions.
It is essential to prevent all contact with liquid or vapour. Hydrocyanic acid should only be handled in a suitable cubicle, with an induced
draught system fitted, ensuring adequate ventilation. Do not breathe vapour. Do not get in eyes, on skin, or on clothing. Use only
outdoors or in a well-ventilated area. Do not eat, drink or smoke when using this product. Wash thoroughly after handling. Atmospheric
levels should be controlled in compliance with the occupational exposure limit.
Conditions for safe storage, including any incompatibilities
NOTE: ONLY ACID STABILISED HYDROCYANIC ACID SHOULD BE STORED.
Cyanides should only be stored under CONTROLLED conditions in clearly designated areas.
Keep away from heat, sparks, open flame, hot surfaces - No smoking. Keep container tightly closed. Ground container and receiving
equipment. Use explosion-proof electrical/ventilating/lighting/equipment. Take precautionary measures against static discharge. Store in
a well-ventilated place. Keep cool. Store locked up. Keep container dry. Keep away from food and tobacco products.
Storage temperature (°C): Keep in a cool place.
Storage life 1 year
Incompatible materials: Keep away from alkalis, oxidising agents, flammable and combustible materials.
Concentrated Sulphuric acid.
Specific end use(s). Industrial use as an intermediate under strictly controlled conditions.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- 1051
Shipping information
- Proper shipping name and description:
- HYDROGEN CYANIDE, STABILIZED containing less than 3% water
- Language:
- English
- Labels:
- 6.1 + 3
Special provisions / remarks
- Special provisions:
- 603
Inland waterway transport (UN RTDG/ADN(R))
- UN number:
- 1051
Shipping information
- Proper shipping name and description:
- HYDROGEN CYANIDE, STABILIZED containing less than 3% water
- Language:
- English
- Labels:
- 6.1 + 3
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
- UN number:
- 1051
Shipping information
- Proper shipping name and description:
- HYDROGEN CYANIDE, STABILIZED containing less than 3% water
- Marine pollutant
Remarksopen allclose all
Air transport (UN RTDG/ICAO/IATA)
- UN number:
- 1051
Shipping information
- Proper shipping name and description:
- HYDROGEN CYANIDE, STABILIZED containing less than 3% water
Special provisions / remarks
- Remarks:
- PROHIBITED BY AIR
SpecialProvisionsopen allclose all
Exposure controls / personal protection
Appropriate engineering controls: Do not eat, drink or smoke when using this product. Use under strictly controlled conditions.
Consideration should be given to the work procedures involved and the potential extent of exposure as they may determine whether a higher level of
protection is required.
Individual protection measures, such as personal protective equipment (PPE). Wear suitable protective clothing. A chemical resistant one piece suit with hood and PVC or rubber boots. Contaminated clothing should be thoroughly cleaned before re-use. If there is potential for exposure to high concentrations of vapour (>150ppm HCN) gas tight suits must be worn.
WARNING : A standby man must be in attendance at all times if one piece or gastight suits are worn.
Showering is necessary before and after the removal of contaminated protective clothing.NTROLS/PERSONAL PROTECTION.
Eye/face protection: Wear eye/face protection. See above.
Skin protection: Wear suitable gloves or gauntlets. Neoprene, rubber, PVC. Suitability of gloves should be confirmed with glove manufacturer. Change gloves, if contamination occurs or duration of activity exceeds breakthrough time. Breakthrough time of the glove material: refer to the information provided by the gloves’ producer.
Respiratory protection: Wear suitable respiratory protective equipment if exposure to levels above the occupational exposure limit is likely.
In the event of mist or HCN gas being evolved a full face self contained breathing apparatus or airline is ESSENTIAL.
Environmental exposure controls: The substance should be rigourously contained by technical means during its lifetime.
Occupational Exposure Limits:
UK: STEL 10 ppm 11 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
France: VME 2 ppm 2 mg/m³ VLE 10 ppm 10 mg/m³ (VME/VLE - Valeur Maximum Exposition/Valeur Limited'Exposition)
Belgium: STEL 4.7 ppm 5.0 mg/m (STEL - Short Term Exposure Level, 15 mins)
Czech republic: PEL 3 mg/m³ NPK-P 10 mg/m³ (PEL- Prípustné expozicní limity, NPK-P - Nejvyšší prípustné koncentrace)
Germany(MAK): 8hr TWA 1.9 ppm 2.1 mg/m³ STEL 3.8 ppm 4.2 mg/m³
Spain: VLA-EC 4.7 ppm 5.3 mg/m³ (VLA-EC - Valor Límite Ambiental-Exposición de Corta Duración)
Finland: STEL 10 ppm 11 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
Ireland: STEL 10 ppm 10 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
Iceland: 5mg/m³
Netherlands: 8hr TWA 1 mg/m³ 15 min 10 mg/m³
Poland: NDSP 5 mg/m³ (NDSP - Najwyższe Dopuszczalne Stężenie Pułapowe)
United States (ACGIH): STEL 4.7 ppm 5 mg/m³
Consideration should be given to the work procedures involved and the potential extent of exposure as they may determine whether a higher level of
protection is required.
Individual protection measures, such as personal protective equipment (PPE). Wear suitable protective clothing. A chemical resistant one piece suit with hood and PVC or rubber boots. Contaminated clothing should be thoroughly cleaned before re-use. If there is potential for exposure to high concentrations of vapour (>150ppm HCN) gas tight suits must be worn.
WARNING : A standby man must be in attendance at all times if one piece or gastight suits are worn.
Showering is necessary before and after the removal of contaminated protective clothing.NTROLS/PERSONAL PROTECTION.
Eye/face protection: Wear eye/face protection. See above.
Skin protection: Wear suitable gloves or gauntlets. Neoprene, rubber, PVC. Suitability of gloves should be confirmed with glove manufacturer. Change gloves, if contamination occurs or duration of activity exceeds breakthrough time. Breakthrough time of the glove material: refer to the information provided by the gloves’ producer.
Respiratory protection: Wear suitable respiratory protective equipment if exposure to levels above the occupational exposure limit is likely.
In the event of mist or HCN gas being evolved a full face self contained breathing apparatus or airline is ESSENTIAL.
Environmental exposure controls: The substance should be rigourously contained by technical means during its lifetime.
Occupational Exposure Limits:
UK: STEL 10 ppm 11 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
France: VME 2 ppm 2 mg/m³ VLE 10 ppm 10 mg/m³ (VME/VLE - Valeur Maximum Exposition/Valeur Limited'Exposition)
Belgium: STEL 4.7 ppm 5.0 mg/m (STEL - Short Term Exposure Level, 15 mins)
Czech republic: PEL 3 mg/m³ NPK-P 10 mg/m³ (PEL- Prípustné expozicní limity, NPK-P - Nejvyšší prípustné koncentrace)
Germany(MAK): 8hr TWA 1.9 ppm 2.1 mg/m³ STEL 3.8 ppm 4.2 mg/m³
Spain: VLA-EC 4.7 ppm 5.3 mg/m³ (VLA-EC - Valor Límite Ambiental-Exposición de Corta Duración)
Finland: STEL 10 ppm 11 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
Ireland: STEL 10 ppm 10 mg/m³ (STEL - Short Term Exposure Level, 15 mins)
Iceland: 5mg/m³
Netherlands: 8hr TWA 1 mg/m³ 15 min 10 mg/m³
Poland: NDSP 5 mg/m³ (NDSP - Najwyższe Dopuszczalne Stężenie Pułapowe)
United States (ACGIH): STEL 4.7 ppm 5 mg/m³
Stability and reactivity
Reactivity: In contact with heat or alkalis may polymerise with explosive force.
Chemical stability : Stable in the presence of acidic inhibitor. N.B. Dissociation is reduced by addition of a small amount (0.1-0.15% by weight) of
Sulphuric acid.
Possibility of hazardous reactions : Violent reactions may occur when in contact with excess concentrated acids, alkalis or oxidising agents.
Conditions to avoid: Keep away from heat. Keep away from sources of ignition. Keep away from water.
Incompatible materials: Keep away from alkalis, oxidising agents, flammable and combustible materials. Concentrated Sulphuric acid.
Hazardous decomposition products: Thermal decomposition will evolve oxides of carbon and nitrogen and water.
Chemical stability : Stable in the presence of acidic inhibitor. N.B. Dissociation is reduced by addition of a small amount (0.1-0.15% by weight) of
Sulphuric acid.
Possibility of hazardous reactions : Violent reactions may occur when in contact with excess concentrated acids, alkalis or oxidising agents.
Conditions to avoid: Keep away from heat. Keep away from sources of ignition. Keep away from water.
Incompatible materials: Keep away from alkalis, oxidising agents, flammable and combustible materials. Concentrated Sulphuric acid.
Hazardous decomposition products: Thermal decomposition will evolve oxides of carbon and nitrogen and water.
Disposal considerations
Do not allow to enter drains, sewers or watercourses. Untreated material is not suitable for disposal.
Waste treatment methods
Dispose of contents/container to hazardous waste in accordance with local, state or national legislation. The preferred method is by
reaction with an excess of dilute sodium hypochlorite under alkaline (>pH12) conditions in a suitable treatment plant.
Waste treatment methods
Dispose of contents/container to hazardous waste in accordance with local, state or national legislation. The preferred method is by
reaction with an excess of dilute sodium hypochlorite under alkaline (>pH12) conditions in a suitable treatment plant.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
