Potassium cyanide
RTECS #
TS8750000
CAS #
Updated
December 2018
Molecular Weight
65.12
Molecular Formula
CKN
Synonyms
Cyanide of potassium
Cyanure de potassium (French)
Hydrocyanic acid, potassium salt
KCN
Potassium cyanide (ACGIH)
RCRA waste number P098
Cyanure de potassium (French)
Hydrocyanic acid, potassium salt
KCN
Potassium cyanide (ACGIH)
RCRA waste number P098
Mutation Data and Reference
| System Test | Route/Organism/Tissue | Dose | Reference |
|---|---|---|---|
| Cytogenetic Analysis | mammary gland/mouse | 1 mmol/L/48H | MUREAV 67,221,1979 |
| Cytogenetic Analysis | lymphocyte/human | 70 mg/L/24H | MUREAV 537,117,2003 |
| DNA Damage | other cell types/rat | 5 mmol/L/6H | TOLED5 128,185,2002 |
| DNA Damage | liver/rat | 300 µmol/L | MUREAV 368,59,1996 |
| DNA inhibition | lymphocyte/mouse | 1 mmol/L | NEOLA4 28,423,1981 |
| DNA repair | /Escherichia coli | 39 µg/well | MUREAV 133,161,1984 |
Reproductive Effects Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| intraperitoneal/rat | 45 mg/kg (1-15D pregnant) | Reproductive: Effects on embryo or fetus: Fetotoxicity (except death, e.g., stunted fetus) | TJADAB 25(2),84A,1982 |
| oral/domestic animal | 1767 mg/kg (8-20W preg/44D after birth) | Reproductive: Effects on newborn: Weaning or lactation index (e.g., # alive at weaning per # alive at day 4) Reproductive: Effects on newborn: Other neonatal measures or effects | RJARAV 16,109,1978 |
| oral/rat | 65 gm/kg (14D prior to copulation/1-22D pregnant) | Reproductive: Effects on fertility: Other measures of fertility | BNEOBV 36,233,1979 |
Acute Toxicity Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| In Vitro/Chicken, neurons | Inhibitor Concentration (50 percent kill): 2672 µmol/L/21H | In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 7,653,1993 |
| In Vitro/Chicken, neurons | Inhibitor Concentration (10 percent kill): 664 µmol/L/21H | In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 7,653,1993 |
| In Vitro/Chicken, neurons | Inhibitor Concentration (50 percent kill): 1421 µmol/L/20H | In Vitro Toxicity Studies: Cell viability (lysosomal damage): neutral red assay etc. | TIVIEQ 7,653,1993 |
| In Vitro/Chicken, neurons | Inhibitor Concentration (10 percent kill): 66 µmol/L/20H | In Vitro Toxicity Studies: Cell viability (lysosomal damage): neutral red assay etc. | TIVIEQ 7,653,1993 |
| In Vitro/Human, liver | Inhibitor Concentration (10 percent kill): 1.55 mmol/L/24H | In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Human, liver | Inhibitor Concentration (50 percent kill): 4.92 mmol/L/24H | In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Human, liver tumor | Inhibitor Concentration (10 percent kill): 0.48 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Human, liver tumor | Inhibitor Concentration (50 percent kill): 2.02 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Human, liver tumor | Inhibitor Concentration (50 percent kill): >250 µmol/L/24H | In Vitro Toxicity Studies: Cell metabolic activity: Alamar Blue assay etc. | TIVIEQ 29,582,2015 |
| In Vitro/Mouse, fibroblast | Inhibitor Concentration (10 percent kill): 0.43 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Mouse, fibroblast | Inhibitor Concentration (50 percent kill): 0.91 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Pig, spermatozoa | Inhibitor Concentration (50 percent kill): 491 µmol/L/30M | In Vitro Toxicity Studies: Other assays | TIVIEQ 29,582,2015 |
| In Vitro/Rat, liver | Inhibitor Concentration (10 percent kill): 0.19 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Rat, liver | Inhibitor Concentration (50 percent kill): 1.15 mmol/L/24H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) In Vitro Toxicity Studies: Cell viability (mitochondrial reductase assays): MTT, XTT, MTS, WSTs assays etc. | TIVIEQ 8,47,1994 |
| In Vitro/Rat, liver | Inhibitor Concentration Low: 5 mmol/L/2H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) | TIVIEQ 4,37,1990 |
| In Vitro/Rat, liver | Inhibitor Concentration Low: 1 mmol/L/4H | In Vitro Toxicity Studies: Cell membrane integrity: Cytoplasmic enzymes leakage (lactate dehydrogenase, ATP enzymes etc.) | TIVIEQ 4,37,1990 |
| In Vitro/Rat, lung | Inhibitor Concentration (10 percent kill): 0.008 gm/L/24H | In Vitro Toxicity Studies: Cell membrane integrity (prelabeled cells): release of radioactive isotopes ([51Cr], [3H]-thymidine, [3H]-proline, [35S]- or [75Se]-methionine, 5-[125I]-2-deoxy-uridine) or fluorescent dyes (bis-carboxyethyl-carboxyfluorescein (BCECF) or calcein-AM) | TIVIEQ 7,111,1993 |
| In Vitro/Rat, lung | Inhibitor Concentration (50 percent kill): 0.085 gm/L/24H | In Vitro Toxicity Studies: Cell membrane integrity (prelabeled cells): release of radioactive isotopes ([51Cr], [3H]-thymidine, [3H]-proline, [35S]- or [75Se]-methionine, 5-[125I]-2-deoxy-uridine) or fluorescent dyes (bis-carboxyethyl-carboxyfluorescein (BCECF) or calcein-AM) | TIVIEQ 7,111,1993 |
| In Vitro/Rat, lung | Inhibitor Concentration (75 percent kill): 0.372 gm/L/24H | In Vitro Toxicity Studies: Cell membrane integrity (prelabeled cells): release of radioactive isotopes ([51Cr], [3H]-thymidine, [3H]-proline, [35S]- or [75Se]-methionine, 5-[125I]-2-deoxy-uridine) or fluorescent dyes (bis-carboxyethyl-carboxyfluorescein (BCECF) or calcein-AM) | TIVIEQ 7,111,1993 |
| intraarterial/guinea pig | lowest published lethal dose: 5 mg/kg | AEPPAE 131,171,1928 | |
| intramuscular/pigeon | lethal dose (50 percent kill): 4 mg/kg | JJPAAZ 3,99,1954 | |
| intramuscular/rabbit | lethal dose (50 percent kill): 3256 µg/kg | JACTDZ 1(3),120,1982 | |
| intramuscular/rat | lowest published lethal dose: 8 mg/kg | 27ZIAQ -,209,1973 | |
| intraperitoneal/guinea pig | lowest published lethal dose: 8 mg/kg | CRSBAW 96,202,1927 | |
| intraperitoneal/mouse | lowest published toxic dose: 10 mg/kg/3M | Brain and Coverings: Other degenerative changes Liver: Other changes Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Cytochrome oxidases (indlucing oxidative phosphrylation) | VCVN1* -,342,1988 |
| intraperitoneal/mouse | lethal dose (50 percent kill): 5.7 mg/kg | TOLED5 132,95,2002 | |
| intraperitoneal/rabbit | lethal dose (50 percent kill): 3972 µg/kg | Blood: Other changes | TOXID9 3,64,1983 |
| intraperitoneal/rat | lethal dose (50 percent kill): 4 mg/kg | Lung, Thorax, or Respiration: Other changes | JAPYAA 32,315,1972 |
| intraperitoneal/rat | lowest published toxic dose: 2 mg/kg | Biochemical: Neurotransmitters or modulators (putative): Dopamine in striatum Biochemical: Neurotransmitters or modulators (putative): Catecholamine levels in CNS | FCTOD7 42,605,2004 |
| intraperitoneal/rat | lowest published toxic dose: 7 mg/kg | Ear: Change in cochlear structure or function | NETEEC 23,157,2001 |
| intravenous/cat | lowest published toxic dose: 1 mg/kg | Brain and Coverings: Changes in surface EEG Cardiac: Arrythmias (indlucing changes in conduction) Lung, Thorax, or Respiration: Respiratory obstruction | EKFAE9 57,60,1994 |
| intravenous/cat | lethal dose (50 percent kill): 2200 µg/kg | PSEBAA 35,316,1936 | |
| intravenous/Dog | lowest published lethal dose: 5 mg/kg | 27ZIAQ -,209,1973 | |
| intravenous/Dog | lowest published lethal dose: 1.12 mg/kg/2.8M | Cardiac: Change in rate Vascular: BP lowering not characterized in autonomic section Lung, Thorax, or Respiration: Respiratory obstruction | JTCTDW 44,5,2006 |
| intravenous/domestic animal | lowest published lethal dose: 10 mg(CN)/kg/11M | VCVN1* -,342,1988 | |
| intravenous/guinea pig | lowest published lethal dose: 5 mg/kg | AEPPAE 131,171,1928 | |
| intravenous/mouse | lethal dose (50 percent kill): 2600 µg/kg | Peripheral Nerve and Sensation: Flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral: Convulsions or effect on seizure threshold Lung, Thorax, or Respiration: Respiratory stimulation | JJPAAZ 3,99,1954 |
| intravenous/mouse | lowest published toxic dose: 2 mg/kg | Behavioral: Coma | BPBLEO 30,514,2007 |
| intravenous/mouse | lethal dose (50 percent kill): 2.6 mg/kg | ENTOX* ,706,2005 | |
| intravenous/rat | lowest published toxic dose: 140 µg/kg | Cardiac: Change in rate Vascular: BP elevation not characterized in autonomic section | BJMRDK 38,967,2005 |
| intravenous/rat | lethal dose (50 percent kill): 3600 µg/kg | Behavioral: Altered sleep time (including change in righting reflex) Behavioral: Convulsions or effect on seizure threshold Lung, Thorax, or Respiration: Dyspnea | DDREDK 5,225,1985 |
| ocular/rabbit | lethal dose (50 percent kill): 7870 µg/kg | Eye: Other eye effects Behavioral: Ataxia Lung, Thorax, or Respiration: Respiratory stimulation | JTOTDO 2,119,1983 |
| oral/domestic animal | lowest published toxic dose: 8 mg/kg | Behavioral: Sleep Behavioral: Tremor Behavioral: Convulsions or effect on seizure threshold | JAPTO* 25,445,2005 |
| oral/domestic animal | lowest published toxic dose: 8 mg/kg | Cardiac: Arrythmias (indlucing changes in conduction) Lung, Thorax, or Respiration: Dyspnea Lung, Thorax, or Respiration: Respiratory depression | JAPTO* 25,445,2005 |
| oral/domestic animal | lowest published toxic dose: 8 mg/kg | Gastrointestinal: Changes in structure or function of salivary glands Nutritional and Gross Metabolic: Body temperature increase | JAPTO* 25,445,2005 |
| oral/human | lowest published lethal dose: 2857 µg/kg | 34ZIAG -,191,1969 | |
| oral/man | lowest published toxic dose: 13699 µg/kg | Behavioral: Convulsions or effect on seizure threshold Behavioral: Coma Nutritional and Gross Metabolic: Changes in: Metabolic acidosis | JTCTDW 25,121,1987 |
| oral/mouse | lethal dose (50 percent kill): 8500 µg/kg | JPETAB 161,163,1968 | |
| oral/rabbit | lethal dose (50 percent kill): 5 mg/kg | 27ZIAQ -,209,1973 | |
| oral/rat | lethal dose (50 percent kill): 5 mg/kg | ARTODN 54,275,1983 | |
| oral/rat | lethal dose (50 percent kill): 6 mg/kg | Behavioral: Tetany Behavioral: Ataxia Lung, Thorax, or Respiration: Respiratory obstruction | VCVN1* -,342,1988 |
| oral/woman | lowest published toxic dose: 100 mg/kg | Behavioral: Convulsions or effect on seizure threshold Cardiac: Pulse rate increased without fall in BP Vascular: BP lowering not characterized in autonomic section | AJEMEN 1,94,1983 |
| parenteral/mouse | lethal dose (50 percent kill): 6.7 mg/kg/24H | ENTOX* -,698,2005 | |
| subcutaneous/Dog | lethal dose (50 percent kill): 6 mg/kg | Behavioral: Convulsions or effect on seizure threshold | ATXKA8 21,89,1965 |
| subcutaneous/frog | lowest published lethal dose: 60 mg/kg | AIPTAK 3,77,1897 | |
| subcutaneous/guinea pig | lowest published lethal dose: 8 mg/kg | CRSBAW 96,202,1927 | |
| subcutaneous/mouse | lowest published toxic dose: 7 mg/kg | Brain and Coverings: Other degenerative changes Behavioral: Convulsions or effect on seizure threshold Biochemical: Metabolism (intermediary): Effect on cyclic nucleotides | TXCYAC 179,29,2002 |
| subcutaneous/mouse | lethal dose (50 percent kill): 6500 µg/kg | NYKZAU 54,1057,1958 | |
| subcutaneous/rabbit | lethal dose (50 percent kill): 4 mg/kg | Lung, Thorax, or Respiration: Other changes | JJPAAZ 3,99,1954 |
| subcutaneous/rabbit | lethal dose (50 percent kill): 6 mg/kg | TOLED5 132,95,2002 | |
| subcutaneous/rat | lowest published lethal dose: 78144 µg/kg/24H | NETEEC 32,289,2010 | |
| subcutaneous/rat | lethal dose (50 percent kill): 7814 µg/kg | ATSUDG 14,231,1991 | |
| unreported route/human | lowest published lethal dose: 1.71 mg/kg | VCVN1* -,342,1988 |
Other Multiple Dose Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| intramuscular/domestic animal | lowest published toxic dose: 168 mg/kg/20W- intermittent | Brain and Coverings: Other degenerative changes Spinal Cord: Other degenerative changes | FCTOD7 40,1693,2002 |
| intraperitoneal/mouse | lowest published toxic dose: 72 mg/kg/12D- intermittent | Brain and Coverings: Other degenerative changes | TOXID9 36(1 Pt2),15,1997 |
| intraperitoneal/rat | lowest published toxic dose: 21 mg/kg/3D- intermittent | Ear: Change in cochlear structure or function | NETEEC 23,157,2001 |
| oral/domestic animal | lowest published toxic dose: 483 mg/kg/23W- intermittent | Behavioral: Ataxia Behavioral: Tremor | FCTOD7 40,1693,2002 |
| oral/domestic animal | lowest published toxic dose: 193.2 mg/kg/23W- intermittent | Spinal Cord: Other degenerative changes Blood: Hemorrhage | FCTOD7 40,1693,2002 |
| oral/domestic animal | lowest published toxic dose: 56 mg/kg/7D- continuous | Spinal Cord: Other degenerative changes Liver: Other changes Kidney, Ureter, and Bladder: Changes in tubules (including acute renal failure, acute tubular necrosis) | JAPTO* 25,445,2005 |
| oral/domestic animal | lowest published toxic dose: 114 mg/kg/30D- continuous | Brain and Coverings: Other degenerative changes Nutritional and Gross Metabolic: Changes in: Cl | JAPTO* 28,356,2008 |
| oral/rabbit | lowest published toxic dose: 45 gm/kg/6W- intermittent | Gastrointestinal: Other changes Liver: Other changes Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Phosphatases | CBPCEE 109,215,1994 |
| oral/rabbit | lowest published toxic dose: 9.5 mg/kg/25D- continuous | Vascular: Contraction (isolated tissue) Vascular: Relaxation (isolated tissue) | HETOEA 26,105,2007 |
| oral/rat | lowest published toxic dose: 54.6 mg/kg/91D- intermittent | Brain and Coverings: Other degenerative changes Spinal Cord: Other degenerative changes Blood: Changes in serum composition (e.g. TP, bilirubin, cholesterol) | EESADV 53,37,2002 |
| oral/rat | lowest published toxic dose: 4.5 mg/kg/15D- intermittent | Endocrine: Evidence of thyroid hypofunction | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 45 mg/kg/15D- intermittent | Kidney, Ureter, and Bladder: Changes in tubules (including acute renal failure, acute tubular necrosis) Endocrine: Evidence of thyroid hypofunction | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 135 mg/kg/15D- intermittent | Kidney, Ureter, and Bladder: Changes in tubules (including acute renal failure, acute tubular necrosis) Endocrine: Evidence of thyroid hypofunction Nutritional and Gross Metabolic: Weight loss or decreased weight gain | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 4.2 mg/kg/14D- intermittent | Endocrine: Other changes Blood: Changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Transaminases | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 42 mg/kg/14D- intermittent | Kidney, Ureter, and Bladder: Other changes Endocrine: Other changes Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Transaminases | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 126 mg/kg/14D- intermittent | Liver: Other changes Kidney, Ureter, and Bladder: Other changes Nutritional and Gross Metabolic: Weight loss or decreased weight gain | TXCYAC 174,87,2002 |
| oral/rat | lowest published toxic dose: 288 mg/kg/30D- continuous | Nutritional and Gross Metabolic: Weight loss or decreased weight gain Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Phosphatases Biochemical: Metabolism (intermediary): Effect on mitochondrial function | TSUMEZ 15,219,1996 |
| oral/rat | lowest published toxic dose: 31500 mg/kg/50W- continuous | Kidney, Ureter, and Bladder: Other changes in urine composition Endocrine: Changes in thyroid weight Nutritional and Gross Metabolic: Weight loss or decreased weight gain | JTEHD6 5,579,1979 |
| oral/rat | lowest published toxic dose: 14420 mg/kg/13W- continuous | Behavioral: Food intake (animal) Behavioral: Fluid intake Nutritional and Gross Metabolic: Weight loss or decreased weight gain | TOLED5 57,195,1991 |
| subcutaneous/mouse | lowest published toxic dose: 84 mg/kg/7D- intermittent | Behavioral: Somnolence (general depressed activity) Behavioral: Rigidity (includes catalepsy) Biochemical: Neurotransmitters or modulators (putative): Dopamine in striatum | TXAPA9 126,156,1994 |
| subcutaneous/rat | lowest published toxic dose: 11 mg/kg/22W- intermittent | Brain and Coverings: Demyelination Brain and Coverings: Other degenerative changes | VCVN1* -,343,1988 |
Reviews
| Organization | Standard | Reference |
|---|---|---|
| American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-time-weighted average 5 mg(CN)/m3 (skin) | DTLVS* TLV/BEI,2013 |
| TOXICOLOGY REVIEW | FNSCA6 2,67,1973 | |
| TOXICOLOGY REVIEW | ENTOX* -,698,2005 | |
| TOXICOLOGY REVIEW | HUTOX* -,661,1996 | |
| TOXICOLOGY REVIEW | NTAPM* -,671,1995 | |
| TOXICOLOGY REVIEW | MUREAV 728,98,2011 | |
| TOXICOLOGY REVIEW | TOLED5 198,297,2010 | |
| TOXICOLOGY REVIEW | RTOPDW 58,395,2010 |
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION | FEREAC 54,7740,1989 | |
| Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1998 STATUS OF PESTICIDES | Cancelled | RBREV* -,257,1998 |
| Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
| Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
| Occupational Exposure Limit-AUSTRALIA | time-weighted average 5 mg(CN)/m3, JUL2008 | |
| Occupational Exposure Limit-BELGIUM | short term exposure limit 5 mg/m3, Skin, MAR2002 | |
| Occupational Exposure Limit-DENMARK | ceiling concentration 5 mg(CN)/m3, skin, MAY2011 | |
| Occupational Exposure Limit-FRANCE | CME 5 mg(CN)/m3, Skin, FEB2006 | |
| Occupational Exposure Limit-GERMANY | MAK 5 mg/m3, inhal, 2011 | |
| Occupational Exposure Limit-HUNGARY | time-weighted average 5 mg(CN)/m3, short term exposure limit 20 mg(CN)/m3, Skin, SEP2000 | |
| Occupational Exposure Limit-ICELAND | short term exposure limit 5 mg/m3, skin, NOV2011 | |
| Occupational Exposure Limit-JAPAN | ceiling concentration 5 mg(CN)/m3, skin, MAY2012 | |
| Occupational Exposure Limit-KOREA | time-weighted average 5 mg/m3, 2006 | |
| Occupational Exposure Limit-MEXICO | peak 5 mg/m3, 2004 | |
| Occupational Exposure Limit-MEXICO | time-weighted average 5 mg(CN)/m3, 2004 | |
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 5 mg(CN)/m3, skin, JAN2002 | |
| Occupational Exposure Limit-PERU | short term exposure limit 5 mg/m3, JUL2005 | |
| Occupational Exposure Limit-POLAND | time-weighted average 0.3 mg(CN)/m3, CEILING 10 mg(CN)/m3, JAN1999 | |
| Occupational Exposure Limit-SWITZERLAND | ceiling concentration 5 mg/m3, inhal, skin, JAN2011 | |
| Occupational Exposure Limit-UNITED KINGDOM | time-weighted average 5 mg(CN)/m3, skin, OCT2007 | |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 5 mg(CN)/m3 | CFRGBR 41,50-204.50,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 5 mg(CN)/m3 | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
| Organization | Standard | Reference |
|---|---|---|
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO CYANIDE-air | ceiling concentration 4.7 ppm(CN)/10M | NIOSH* DHHS #92-100,1992 |
| National Occupational Exposure Survey 1983 | Hazard Code 60400; Number of Industries 57; Total Number of Facilities 4594; Number of Occupations 47; Total Number of Employees Exposed 64238; Total Number of Female Employees Exposed 23645 | |
| National Occupational Hazard Survey 1974 | Hazard Code 60400; Number of Industries 45; Total Number of Facilities 2204; Number of Occupations 30; Total Number of Employees Exposed 12274 |
Status in Federal Agencies
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health