Quick Search
Potassium thiocyanate = KSCN
CAS NO: 333-20-0
EC NUMBER: 206-370-1
Potassium thiocyanate is the chemical compound with the molecular formula KSCN.
Potassium thiocyanate important salt of the thiocyanate anion, one of the pseudohalides.
Potassium thiocyanate has a low melting point relative to most other inorganic salts.
Potassium thiocyanate is a potassium salt which is the monopotassium salt of thiocyanic acid. It contains a thiocyanate.
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 ℃.
Potassium thiocyanate 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 Potassium thiocyanate can not react with ferrous salts.
Potassium thiocyanate is hygroscopic, and Potassium thiocyanate should be sealed. Potassium thiocyanate has low toxicity.
Potassium thiocyanate is a chaotropic reagent used in laboratories during the crystallization process of basic proteins.
Also used as an extracting agent of antigens from Pasteurella multocida.
Other research has used potassium thiocyanate as a destaining agent.
Potassium thiocyanate is an inorganic potassium salt.
Use in chemical synthesis
Aqueous KSCN reacts almost quantitatively with Pb(NO3)2 to give Pb(SCN)2, which has been used to convert acyl chlorides to isothiocyanates.
KSCN converts ethylene carbonate to ethylenesulfide. For this purpose, the KSCN is first melted under vacuum to remove water.
In a related reaction, KSCN converts cyclohexene oxide to the corresponding episulfide.
C6H10O + KSCN → C6H10S + KOCN
KSCN is also the starting product for the synthesis of carbonyl sulfide.
Other uses of Potassium thiocyanate
Dilute aqueous KSCN is occasionally used for moderately realistic blood effects in film and theater.
It can be painted onto a surface or kept as a colorless solution.
When in contact with ferric chloride solution (or other solutions containing Fe3+), the product of the reaction is a solution with a blood red colour, due to the formation of the thiocyanatoiron complex ion.
Thus this chemical is often used to create the effect of 'stigmata'. Because both solutions are colorless, they can be placed separately on each hand.
When the hands are brought into contact, the solutions react and the effect looks remarkably like stigmata.
Similarly, this reaction is used as a test for Fe3+ in the laboratory.
USE AREAS:
Modifier used for chemical, when chemical is used in a laboratory
Drug product, or related to the manufacturing of drugs; modified by veterinary, animal, or pet
Related to photography, film, photographic equipment, photographic laboraties, photochemicals, and developing of photographs
Drug product, or related to the manufacturing of drugs; modified by veterinary, animal, or pet if indicated by source
Related to electrical work (such as wiring of a building), electric current insulation materials, or other electrical components
Related to manufacturing for export
Televisions and their manufacture
Related to metals - manufacturing of metals, casting of metals, production of metals, surface treatment of metals, etc
Radios (communication device)
Substances used for preventing, destroying or mitigating pests
Related to photography, film, photographic equipment, photographic laboraties, photochemicals, and developing of photographs
Related to the process of printing (newspapers, books media, etc), printing inks, toners, etc
Materials and agents for writing, including correction materials, writing inks
Potassium thiocyanate can be used in electroplating industry for stripping agent, Potassium thiocyanate can also be used refrigerant.
Potassium thiocyanate can also be used in the dye industry, photographic industry, pesticides and steel analysis.
Analysis of siliver ion; indirect determination of chloride, bromide, and iodide.
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.
Used as a source of thiocyanate.
Industry Uses
-Intermediates
-Laboratory chemicals
General Manufacturing Information
Industry Processing Sectors
-All other basic organic chemical manufacturing
-Pharmaceutical and medicine manufacturing
Potassium thiocyanate is used in the following products: laboratory chemicals and pH regulators and water treatment products.
Potassium thiocyanate is used in the following areas: building & construction work, health services and scientific research and development.
Other release to the environment of Potassium thiocyanate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use and indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).
Potassium thiocyanate is used for the manufacture of: chemicals.
Release to the environment of Potassium thiocyanate can occur from industrial use: in processing aids at industrial sites, in the production of articles, as an intermediate step in further manufacturing of another substance (use of intermediates) and as processing aid.
Chemical properties
Potassium thiocyanate is colorless monoclinic crystal.
Potassium thiocyanate is soluble in water, and it can cool because of the absorption of heat.
Potassium thiocyanate is also soluble in alcohol and acetone.
Potassium thiocyanate, potassium sulfocyanide, potassium sulfocyanate, potassium rhodanate, KCNS, white solid, formed by fusing potassium cyanide and sulfur, and then crystallizing.
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.
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.
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.
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.
Application
Potassium thiocyanate may be used in the synthesis of the following:
α-Amino nitriles from tertiary amines.
Polysubstituted 2-aminothiazoles from vinyl azides.
Benzisothiazol-3(2H)-one derivatives from o-bromobenzamides.
Diaryl thioethers from aryl halides.
Potassium thiocyanate (KSCN) may be used for the colorimetric quantification of intracellular iron content of the superparamagnetic iron oxide (SPIO) nanoparticles.
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
Boiling Point/Range: Decomposes on heating
Color: Colorless
Density: 1.89 g/cm3
Flashpoint: Not applicable
Form :Crystalline
Grade: Reagent Grade Salts
Incompatible Materials: Incompatible with strong acids, oxidizers and nitrates.
Lower Explosion Limit: Not applicable
Melting Point/Range: 172 °C
Partition Coefficient: No data available
Purity Percentage: 98
Purity Details: >=98.0%
Solubility in Water: 2.170.0 g/l (20 °C)
pH-Value: 5.3-8.5 at 50 g/l (20 °C) (as aqueous solution)
Product Line: Purum p.a.
Storage Temperature: Ambient
Potassium Thiocyanate (Potassium Rhodanide) is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.
Crystallization grade Potassium thiocyanate for formulating screens or for optimization
Potassium Thiocyanate (CAS number 333-20-0) is the chemical compound with the molecular formula KSCN. It is a colourless deliquescent crystal.
IUPAC NAMES:
Potasio Tiocianato
potassium cyanosulfanide
Potassium rhodanide, Potassium sulfocyanide
Potassium Thiocyanate
Potassium thiocyanate
potassium thiocyanate
Potassium Thiocyanate
Potassium thiocyanate
potassium; thiocyanate
Other Names:
Potassium sulfocyanate
Potassium isothiocyanate
Potassium thiocyanide
Potassium rhodanide
POTASSIUM THIOCYANATE;
333-20-0;
potassium rhodanide;
Potassium rhodanate;
Thiocyanic acid, potassium salt;
Potassium thiocyanide;
Potassium sulfocyanate;
Arterocyn; Rhocya;
KSCN;
MFCD00011413; potassium; thiocyanate;
UNII-TM7213864A;
Rodanca;
CHEBI:30951;
TM7213864A;
Thiocyanic acid, potassium salt (1:1);
Aterocyn; Kyonate;
Thio-cara; Caswell No. 703;
Potassium thiocyanate, 98%, pure;
potassiumthiocyanate;
Potassium thiocyanate, 99%, ACS reagent;
Potassium thiocyanate, 99+%, for analysis;
CCRIS 4041;
Potassium thiocyanate, 99%, for biochemistry;
EINECS 206-370-1;
EPA Pesticide Chemical Code 068201;
Potassium thiocyanate [NF];
AI3-28747;
potassium thiocynate; CKNS;
potassium sulfocyanide;
ACMC-1CR9R;
EC 206-370-1;
DSSTox_RID_78790;
DSSTox_GSID_29619;
Thiocyanate Standard Solution;
Potassium thiocyanate solution;
Potassium Thiocyanate Solutions;
Potassium thiocyanate ACS grade;
CHEMBL2106973;
DTXSID7029619;
Potassium thiocyanate, AR, >=97%;
Potassium thiocyanate, LR, >=97%;
Tox21_200481; AKOS015915187;
Potassium thiocyanate solution, 0.1 M;
Potassium thiocyanate, p.a., 99.0%;
Thiocyanic acid, potassium salt;
Arterocyn; Aterocyn;
Kyonate;
Potassium isothiocyanate;
Potassium rhodanate;
Potassium rhodanide;
Potassium sulfocyanate;
Potassium thiocyanide;
Rhocya;
Rodanca;
Rhodanide;
Thio-cara
