Potassium thiocyanate
Outline Solubility in water (g / 100ml) Reference quality standards Chemical properties Uses Production method- Product Name
- Potassium thiocyanate
- CAS No.
- 333-20-0
- Chemical Name
- Potassium thiocyanate
- Synonyms
- POTASSIUM ISOTHIOCYANATE;Product Description;Rhocya;Arterocyn;Potassium thiocyanide;Rodanca;Kyonate;Aterocyn;Thio-cara;Rhodanide
- CBNumber
- CB8853514
- Molecular Formula
- CKNS
- Formula Weight
- 97.18
- MOL File
- 333-20-0.mol
Potassium thiocyanate Property
- Melting point:
- 173 °C (lit.)
- Boiling point:
- 500°C
- Density
- 1.886
- vapor pressure
- <0.001 hPa (20 °C)
- Flash point:
- 500°C
- storage temp.
- Store at +5°C to +30°C.
- solubility
- H2O: 8 M at 20 °C, clear, colorless
- form
- Liquid
- color
- colorless or white
- Specific Gravity
- 1.886
- Odor
- Odorless
- PH Range
- 5.3 - 8.7 at 97.2 g/l at 25 °C
- PH
- 5.3-8.7 (25℃, 50mg/mL in H2O)
- Water Solubility
- 2170 g/L (20 ºC)
- Sensitive
- Hygroscopic
- Merck
- 14,7691
- BRN
- 3594799
- Exposure limits
- NIOSH: IDLH 25 mg/m3
- Stability:
- Stable. Incompatible with nitric acid, strong oxidizing agents, active halogen compounds.
- LogP
- 0.58
- CAS DataBase Reference
- 333-20-0(CAS DataBase Reference)
- NIST Chemistry Reference
- Potassium thiocyanate(333-20-0)
- EPA Substance Registry System
- Potassium thiocyanate (333-20-0)
Safety
- Hazard Codes
- Xn,Xi
- Risk Statements
- 32-52/53-20/21/22
- Safety Statements
- 13-61-36/37-46
- WGK Germany
- 1
- RTECS
- XL1925000
- Hazard Note
- Irritant/Hygroscopic
- TSCA
- Yes
- HS Code
- 28380000
- Toxicity
- LD50 orally in mice, rats: 594, 854 mg/kg, Andersen, Chen, J. Am. Pharm. Assoc. 29, 152 (1940)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H318Causes serious eye damage
H412Harmful to aquatic life with long lasting effects
- Precautionary statements
-
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 73059
- Product name
- Potassium thiocyanate solution
- Purity
- volumetric, 8?M KSCN
- Packaging
- 100ML
- Price
- $92.9
- Updated
- 2024/03/01
- Product number
- 207799
- Product name
- Potassium thiocyanate
- Purity
- ACS reagent, ≥99.0%
- Packaging
- 100g
- Price
- $74.5
- Updated
- 2024/03/01
- Product number
- 73059
- Product name
- Potassium thiocyanate solution
- Purity
- volumetric, 8?M KSCN
- Packaging
- 500ML
- Price
- $327
- Updated
- 2024/03/01
- Product number
- 207799
- Product name
- Potassium thiocyanate
- Purity
- ACS reagent, ≥99.0%
- Packaging
- 2.5kg
- Price
- $541
- Updated
- 2024/03/01
- Product number
- 1.05125
- Product name
- Potassium thiocyanate
- Purity
- for analysis EMSURE? ACS,ISO,Reag. Ph Eur
- Packaging
- 250g
- Price
- $208
- Updated
- 2024/03/01
Potassium thiocyanate Chemical Properties,Usage,Production
Outline
Potassium thiocyanate, molecular formula is KSCN, it is also known as KSCN, English is Potassium Thiocyanate, it is colorless monoclinic crystal. The relative density is 1.886. Melting point is about 172.3 ℃. It is soluble in water and it can cool because of the absorption of heat, it is also soluble in alcohol (ethanol) and acetone. Crystalline hemihydrate (KSCN.0.5H2O) can be obtained at low temperature, it is steady at-29-6.8℃, and it can turn blue when be broiled at about 430℃, but it then re-becomes colorless when be colded. When be heated to 500℃, it can decompose. The blood red ferric thiocyanate complex ion FeSCN2 + (iron thiocyanate) can generate in case of Fe3 + (ferric), which is the sensitive method to test the Fe3 + ion, the method can eliminate the influence of all other known metal ions. And it can not react with ferrous salts. It is hygroscopic, and it should be sealed. It has low toxicity. But potassium cyanate is highly toxic substances, the country has limited its production.
Solubility in water (g / 100ml)
The grams which dissolved in per 100 ml of water at different temperatures (℃) :
177g/0 ℃; 198g/10 ℃; 224g/20 ℃; 255g/30 ℃; 289g/40 ℃
372g/60 ℃; 492g/80 ℃; 571g/90 ℃; 675g/100 ℃
Reference quality standards
Chemical properties
It is colorless monoclinic crystal. It is soluble in water, and it can cool because of the absorption of heat. It is also soluble in alcohol and acetone.
The above information is edited by the chemicalbook of Wang Xiaodong.
Uses
It can be used in electroplating industry for stripping agent, it can also be used refrigerant. It can also be used in the dye industry, photographic industry, pesticides and steel analysis.
Production method
The mothod of ammonium thiocyanate transformation which is the pressurized synthesis reaction of carbon disulfide and ammonia can generate ammonium thiocyanate and the by-product is ammonium hydrosulfide, and then by desulfurization, ammonium hydrosulfide can evaporate and remove which is decomposed into hydrogen sulfide, when potassium carbonate solution is added into the temperature of 105℃ liquid, it can generates potassium thiocyanate. The reaction process will produce large amount of carbon dioxide and ammonia. Ammonia is recyclable, the reaction solution is filtered to remove insoluble material, and then reduction vaporization is proceeded, and then cooling and crystallization, centrifugal separation is proceeded to obtain industrial potassium thiocyanate.
CS2 + 3NH3 → NH4SCN + NH4HS
NH4HS → NH3 ↑ + H2S ↑
2NH4SCN + K2CO3 → 2KSCN + (NH4) 2CO3
(NH4) 2CO3 → 2NH3 ↑ + CO2 ↑ + H2O
Chemical Properties
Potassium thiocyanate, potassium sulfocyanide, potassium sulfocyanate, potassium rhodanate, KCNS, white solid, formed by fusing potassium cyanide and sulfur, and then crystallizing.
Chemical Properties
Potassium thiocyanate, KSCN,also known as potassium sulfocyanate and potassium rhodanide, is a colorless deliquescent crystalline solid that melts at 173°C (343 OF) and decomposes at 500°C(932 OF). Soluble in water and alcohol,it has no odor and a saline taste.Potassium thiocyanate is used in printing and dyeing textiles, freezing mixtures, manufacturing chemicals, photography and medicine.
Physical properties
Colorless rhombohedral crystals; deliquesces; density 1.886 g/cm3at 15°C;melts at 173.2°C, the color of the fused salt changing from brown to green and then blue; turns white again on cooling; decomposes at about 500°C; very soluble in water, 177 g/100mL at 0°C and 217 g/100mL at 20°C; solution cools upon dissolution; aqueous solution neutral; readily dissolves in acetone and liquid ammonia; moderately soluble in hot alcohol.
Uses
Used as a source of thiocyanate.
Uses
Potassium Thiocyanate has been used as a catalyst in a one-pot reaction of dialkyl acetylenedicarboxylates with indane-1,3-dione. Potassium Thiocyanate has been used as a selective bacterial inhibitor to create ESS-3 broth to allow co-?enrichment of the target pathogens and suppress growth of some non-?target pathogens
Uses
Analysis of siliver ion; indirect determination of chloride, bromide, and iodide.
Uses
manufacture of artificial mustard oil; printing and dyeing textiles; in photography as intensifier; in analytical chemistry. The sodium salt now is replacing it for most of these uses.
Definition
ChEBI: A potassium salt which is the monopotassium salt of thiocyanic acid.
Preparation
Potassium thiocyanate may be made by adding caustic potash to a solution of ammonium thiocyanate, followed by evaporation of the solution. NH4SCN + KOH →KSCN + NH4OH
Also, the compound can be prepared by heating potassium cyanide with sulfur:KCN + S →KSCN.
Definition
A colorless hygroscopic solid. Its solution is used in a test for iron(III) compounds, with which it turns a blood-red color.
General Description
Potassium thiocyanate is an inorganic potassium salt. Phase transitions in potassium thiocyanate (KSCN) have been investigated by X-ray diffraction studies. The order-disorder type transition with respect to the orientation of the thiocyanate ions was identified. Its polarized infrared spectrum has been reported. It participates in the ring-opening of aziridines. The reaction was carried out in the presence of sulfated zirconia to afford the corresponding β-aminothiocyanates.
Hazard
Toxic by ingestion.
Flammability and Explosibility
Non flammable
Safety Profile
A human poison by ingestion. Poison experimentally by intravenous route. An experimental teratogen. Moderately toxic by subcutaneous and ingestion routes. Large doses can cause slun 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.
Purification Methods
Crystallise it from H2O if much chloride ion is present in the salt, otherwise from EtOH or MeOH (optionally by addition of Et2O). Filter off on a Büchner funnel without paper, and dry it in a desiccator at room temperature before heating for 1hour at 150o, with a final 10-20minutes at 200o to remove the last traces of solvent [Kolthoff & Lingane J Am Chem Soc 57 126 1935]. Store it in the dark.
Potassium thiocyanate Preparation Products And Raw materials
Raw materials
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View Lastest Price from Potassium thiocyanate manufacturers
- Product
- Potassium thiocyanate 333-20-0
- Price
- US $50.00/kg
- Min. Order
- 1kg
- Purity
- 99.10%
- Supply Ability
- 5000kg
- Release date
- 2024-04-18
- Product
- Potassium thiocyanate 333-20-0
- Price
- US $6.00/KG
- Min. Order
- 1KG
- Purity
- More than 99%
- Supply Ability
- 500KG/Month
- Release date
- 2024-03-22
- Product
- Potassium thiocyanate 333-20-0
- Price
- US $50.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-22