Potassium thiocyanate

Potassium Thiocyanate - KSCN What is Potassium Thiocyanate? Potassium thiocyanate is a chemical compound that contains potassium, sulfur, carbon , and nitrogen atoms with the formula KSCN. It is formed by the fusion of sulfur with potassium cyanide, extraction with hot aqueous alcohol, evaporating and cooling. Potassium thiocyanate occurs as colourless, transparent prismatic crystals that are hygroscopic. It is odourless and has a cooling, saline taste. Alcoholic solution of potassium thiocyanate was shaken up with an acid soil a red colour developed, somewhat in proportion to the acidity of the soil. Therefore, potassium thiocyanate can be used to test the acidity of the soil. Other names – Potassium rhodanate, potassium rhodanide Table of Contents • • • • • Properties of Potassium Thiocyanate KSCN Potassium Thiocyanate Density 1.89 g/cm³ Molecular Weight/ Molar Mass 97.181 g/mol Boiling Point 500 °C Melting Point 173 °C Chemical Formula KSCN Potassium Thiocyanate Structure – KSCN Physical Properties of Potassium Thiocyanate – KSCN Odour Odourless Appearance Colourless deliquescent crystals Covalently-Bonded Unit 2 Heat capacity 298.15 K, J/mol·K Complexity 34.5 Solubility 177 g/100 mL (soluble in water) Chemical Properties of Potassium Thiocyanate – KSCN Potassium thiocyanate reacts with iron(III) nitrate forms iron(III) thiocyanate, 3H 2O + 2Fe(NO 3) 3 + 6KSCN → 2Fe(SCN) 3 + 3K 2O + 6HNO 3 Potassium thiocyanate reacts with iron chloride forming Iron(III) Thiocyana...

• العربية • تۆرکجه • Català • Čeština • Deutsch • Ελληνικά • Español • Esperanto • فارسی • Français • Galego • Հայերեն • Bahasa Indonesia • Italiano • Latina • Latviešu • Magyar • Nederlands • 日本語 • Polski • Português • Română • Slovenčina • Српски / srpski • Srpskohrvatski / српскохрватски • Suomi • Svenska • 中文 Chemical compound Thiocyanate (also known as rhodanide) is the [SCN] −, a Thiocyanate is analogous to the [OCN] −, wherein [SCN] − is one of the Thiocyanate is produced by the reaction of elemental sulfur or 8 CN − + S 8 ⟶ 8 SCN − The second reaction is catalyzed by Biological chemistry of thiocyanate in medicine [ ] Thiocyanate Thiocyanate is a potent competitive inhibitor of the thyroid In the early 20th century, thiocyanate was used in the treatment of Coordination chemistry [ ] Thiocyanate shares its negative charge approximately equally between − can also bridge two (M−SCN−M) or even three metals (>SCN− or −SCN<). Experimental evidence leads to the general conclusion that N-bonded thiocyanate complexes, whereas S-bonded thiocyanate complexes. Other factors, e.g. kinetics and solubility, are sometimes involved, and linkage isomerism can occur, for example [Co(NH 3) 5(NCS)]Cl 2 and [Co(NH 3) 5(SCN)]Cl 2. The blood-red colored (up) complex [Fe(NCS)(H 2O) 5] 2+ (left), indicates the presence of Fe 3+ in solution. If [SCN] − is added to a solution with 2O) 5] 2+, i.e. pentaaqua(thiocyanato- N)iron(III). Lesser amounts of other hydrated compounds also form: e.g. F...