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Cas Database |
| Name |
Ethylthiocyanate |
EINECS | 208-833-3 |
| CAS No. | 542-90-5 | Density | 1.01 |
| PSA | 49.09000 | LogP | 1.22058 |
| Solubility | N/A | Melting Point |
-85.5°C |
| Formula | C3H5 N S | Boiling Point | 138 ºC |
| Molecular Weight | 87.1454 | Flash Point | 22 ºC |
| Transport Information | UN 2929 | Appearance | Volatile liquid. |
| Safety | Poison by ingestion, subcutaneous, intraperitoneal, and intravenous routes. When heated to decomposition it emits very toxic fumes of NOx and SOx. See also THIOCYANATES. | Risk Codes | R10;R20/21/22 |
| Molecular Structure |
|
Hazard Symbols |
|
| Synonyms |
Ethylsulfocyanate; Ethyl thiocyanate; NSC 8827 |
Article Data | 47 |
Ethylthiocyanate Chemical Properties
IUPAC Name: Ethyl thiocyanate
Synonyms of Ethyl thiocyanate (CAS NO.542-90-5) : Aethylrhodanid ; Ethane, thiocyanato- ; Ethylthiokyanat ; Thiocyanic acid, ethyl ester
Product Categories: Pharmaceutical Intermediates;Sulphur Derivatives
CAS NO:542-90-5
Molecular Formula:C3H5NS
Molecular Weight: 87.143500 g/mol
Molecular Structure :.gif){kind=small}
EINECS: 208-833-3
Index of Refraction: 1.47
Surface Tension: 36.8 dyne/cm
Density: 1.02 g/cm3
Flash Point: 42.8 °C
Enthalpy of Vaporization: 38.16 kJ/mol
Boiling Point: 144.5 °C at 760 mmHg
Vapour Pressure: 5.07 mmHg at 25°C
Storage temp: Flammables area
Appearance: Ethyl thiocyanate (CAS NO.542-90-5) is clear colorless liquid.
Ethylthiocyanate Uses
Ethyl thiocyanate (CAS NO.542-90-5) is used as an agricultural insecticide.
Ethylthiocyanate Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| cat | LDLo | oral | 10mg/kg (10mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES GASTROINTESTINAL: OTHER CHANGES | Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 310, 1936. |
| mouse | LD50 | intraperitoneal | 10mg/kg (10mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION | Japanese Journal of Pharmacology. Vol. 3, Pg. 99, 1954. |
| mouse | LD50 | intravenous | 18mg/kg (18mg/kg) | U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#02865, | |
| mouse | LD50 | subcutaneous | 70mg/kg (70mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION | Japanese Journal of Pharmacology. Vol. 3, Pg. 99, 1954. |
| rabbit | LDLo | subcutaneous | 15mg/kg (15mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ATAXIA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) | Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 150, Pg. 257, 1930. |
| rat | LDLo | oral | 201mg/kg (201mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA LUNGS, THORAX, OR RESPIRATION: CYANOSIS | Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 310, 1936. |
| rat | LDLo | skin | 2512mg/kg (2512mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 310, 1936. |
| rat | LDLo | subcutaneous | 40mg/kg (40mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA LUNGS, THORAX, OR RESPIRATION: CYANOSIS | Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 310, 1936. |
Ethylthiocyanate Consensus Reports
EPA Extremely Hazardous Substances List. Community Right-To-Know List. Reported in EPA TSCA Inventory.
Ethylthiocyanate Safety Profile
Poison by ingestion, subcutaneous, intraperitoneal, and intravenous routes. When heated to decomposition it emits very toxic fumes of NOx and SOx. See also THIOCYANATES.
Hazard Codes: 
Xn
Risk Statements: 10-20/21/22-36/37/38
R10:Flammable.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37-24/25-16
S16:Keep away from sources of ignition.
S36/37:Wear suitable protective clothing and gloves.
S24/25:Avoid contact with skin and eyes.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR UN: 2929 6.1/PG 2
WGK :Germany 3
RTECS :XK9900000
F :13-19-21
HazardClass :3.2
PackingGroup: III
HS Code :29309070
Ethylthiocyanate Specification
Reactivity Profile: Nitric acid violently oxidized a thiocyanate solution [Bretherick, 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode.
Health Hazard : Ethyl thiocyanate (CAS NO.542-90-5) is highly toxic if ingested.
Fire Hazard :When heated to decomposition, Ethylthiocyanate emits very toxic fumes of oxides of nitrogen and sulfur.
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