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| CAS No.: | 333-20-0 |
|---|---|
| Name: | Potassium thiocyanate |
| Article Data: | 157 |
| Molecular Structure: | |
|
|
|
| Formula: | KCNS |
| Molecular Weight: | 97.182 |
| Synonyms: | Arterocyn;Aterocyn;Potassium isothiocyanate;Thiocyanic acid, potassium salt (1:1); |
| EINECS: | 206-370-1 |
| Density: | 1.886 |
| Melting Point: | 173 °C(lit.) |
| Boiling Point: | 500°C |
| Flash Point: | 500°C |
| Solubility: | 2170 g/L (20 °C) in water |
| Appearance: | white crystalline powder |
| Hazard Symbols: |
 Xn,  Xi
|
| Risk Codes: | 32-52/53-20/21/22 |
| Safety: | 13-61-36/37 |
| PSA: | 49.09000 |
| LogP: | 0.66498 |
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Chemistry
IUPAC Name: Potassium thiocyanate
Synonyms of Potassium thiocyanate (CAS NO.333-20-0): Arterocyn ; Kyonate ; Potassium isothiocyanate ; Potassium thiocyanate ; Thiocyanic acid, potassium salt (1:1)
CAS NO: 333-20-0
Molecular Formula: KCNS
Molecular Weight: 97.18
Molecular Structure: .png)
EINECS: 206-370-1
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 62.59 Å2
Flash Point: 42.1 °C
Enthalpy of Vaporization: 38.3 kJ/mol
Boiling Point: 146 °C at 760 mmHg
Vapour Pressure: 4.73 mmHg at 25°C
Melting Point: 173 °C(lit.)
Storage temp: Store at RT.
Density: 1.886
Solubility : H2O: 8 M at 20°C, clear, colorless
Sensitive : Hygroscopic
Appearance: Colorless to white, odorless crystals
SMILES: [K+].[S-]C#N
InChI: InChI=1/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
InChIKey: ZNNZYHKDIALBAK-REWHXWOFAT
Std. InChI: InChI=1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
Std. InChIKey: ZNNZYHKDIALBAK-UHFFFAOYSA-M
Product Categories of Potassium thiocyanate (CAS NO.333-20-0): Inorganics
Uses
Potassium thiocyanate (CAS NO.333-20-0) is the starting product for the synthesis of carbonyl sulfide. Potassium thiocyanate is used for the production of artificial mustard oil, fungicide, insecticide. It is occasionally used for moderately realistic blood effects in film and theater. Besides, it can be painted onto a surface or kept as a colourless solution.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| dog | LDLo | intravenous | 100mg/kg (100mg/kg) | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. | |
| frog | LDLo | intramuscular | 100mg/kg (100mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| frog | LDLo | oral | 300mg/kg (300mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| frog | LDLo | unreported | 250mg/kg (250mg/kg) | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. | |
| guinea pig | LDLo | oral | 600mg/kg (600mg/kg) | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. | |
| guinea pig | LDLo | subcutaneous | 150mg/kg (150mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| human | LDLo | oral | 80mg/kg (80mg/kg) | BEHAVIORAL: "HALLUCINATIONS, DISTORTED PERCEPTIONS" BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: MUSCLE WEAKNESS | JAMA, Journal of the American Medical Association. Vol. 119, Pg. 1177, 1942. |
| man | TDLo | oral | 428mg/kg (428mg/kg) | BEHAVIORAL: "HALLUCINATIONS, DISTORTED PERCEPTIONS" BEHAVIORAL: TOXIC PSYCHOSIS GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH | Archiv fuer Toxikologie. Vol. 23, Pg. 66, 1967. |
| mouse | LD50 | intraperitoneal | 600mg/kg (600mg/kg) | British Journal of Pharmacology and Chemotherapy. Vol. 4, Pg. 1, 1949. | |
| mouse | LD50 | intravenous | 88200ug/kg (88.2mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. |
| mouse | LD50 | oral | 594mg/kg (594mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. |
| pigeon | LDLo | intramuscular | 750mg/kg (750mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| pigeon | LDLo | subcutaneous | 500mg/kg (500mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| rabbit | LDLo | intravenous | 150mg/kg (150mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| rabbit | LDLo | oral | 500mg/kg (500mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| rabbit | LDLo | subcutaneous | 550mg/kg (550mg/kg) | "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1391, 1935. | |
| rat | LD50 | oral | 854mg/kg (854mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. |
| rat | LDLo | subcutaneous | 1gm/kg (1000mg/kg) | Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 29, Pg. 152, 1940. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety Information about Potassium thiocyanate (CAS NO.333-20-0):
Hazard Codes: 
Xn,Xi
Risk Statements: 32-52/53-20/21/22
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R32: Contact with acid liberates very toxic gas.
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 13-61-36/37
S13: Keep away from food, drink and animal foodstuffs.
S36/37: Wear suitable protective clothing and gloves.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
WGK Germany: 1
RTECS: XL1925000
Hazard Note: Irritant/Hygroscopic
HS Code: 28380000
A human poison by ingestion. Poison experimentally by intravenous route. An experimental teratogen. Moderately toxic by subcutaneous and ingestion routes. Large doses can cause skin eruptions, psychoses, and collapse. Incompatible with calcium chlorite and perchloryl fluoride. When heated to decomposition it emits very toxic fumes of CN−, K2O, SOx, and NOx. See also THIOCYANATES.
Specification
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible.
Extinguishing Media: Use extinguishing media most appropriate for the surrounding fire.
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container. Keep away from acids. Store protected from moisture.