Potassium sulfide represented by the chemistry formula K2S is a compound of potassium and sulfur that is moderately soluble in acids <1>. That is deliquescent and may spontaneously ignite in air. The is a reduce agent and an ionic compound <4>.
You are watching: Is potassium sulfide soluble in water
Potassium Sulfide Identification
|CAS Number||1312-73-8 <1>|
|PubChem CID||20072150 <3>|
|ChemSpider ID||142491 <2>|
|EC Number||215-197-0 <1>|
Composition and also Synthesis
Potassium sulfide have the right to be prepared by an initial treating potassium hydroxide to excess hydrogen sulfide to form potassium hydrosulfide (KHS). More treatment that KHS through the very same amount of potassium hydroxide generates potassium sulfide <9>.
KOH + H2S = KHS + H2O
Potassium Sulfide Formula
Properties and also Characteristics that Potassium Sulfide
|Molar mass/molecular weight||71.158 g/mol <3>|
|Color/appearance||White come yellow flour <4>|
|Melting point/freezing point||840°C, 1544°F <1>|
|Boiling point||912°C, 1674°F <1>|
|Density||1.80 g cm-3 <1>|
|State of matter at room temperature (normal phase)||Solid <1>|
|Solubility in water||N/A <1>|
|pH||>7 (basic) <5>|
|Crystal structure||Tetrahedral <6>|
Potassium Sulfide Structure
Lewis Dot structure for Potassium Sulfide
Prominent reactions of K2S
Potassium sulfide reacts v cobalt iii bromide to produce cobalt iii sulfide and potassium bromide <10>.
3K2S + 2CoBr3 = Co2S3 + 6KBr
Potassium sulfide reacts v dilute hydrochloric acid to produce potassium chloride and hydrogen sulfide <11>.
K2S + 2HCl = 2 KCl + H2S
It reaction with focused sulfuric acid to provide potassium bisulfate, sulfur dioxide, sulfur and water <13>
K2S + 3H2SO4 = 2KHSO4 + SO2 + S + 2H20
The compound reacts through silver nitrate to kind aqueous potassium nitrate and also silver sulfide precipitate <12>.
K2S + 2AgNO3 = 2KNO3 + Ag2S
Potassium Sulfide UsesIn pyrotechnics <7>.As a reagent in analysis chemistry <4>.As a depilatory and also medicine <4>.
See more: How Many Pictures Will 1Tb Hold ? How Many Pictures Does A Terabyte Hold
Is that Dangerous
It may cause a fire hazard, for this reason precautions must be taken no to lug it in call with air. In the kind of powder or dust, that is explosive. Ingestion, inhalation and also skin contact may an outcome in severe injury and even death. It likewise harmfully affects the eyes and also skin leading to eye damage and also skin burns. Hence all call should be avoided. That emits toxic fumes if heated come decomposition <4>. The is of a corrosive nature and also poisonous because that the environment <8>.