What is Hydrogen telluride?
{{chembox | Name = Hydrogen telluride | ImageFileL1 = Hydrogen-telluride-2D-dimensions.svg | ImageSizeL1 = 130px | ImageNameL1 = Structural diagram of the hydrogen telluride molecule | ImageFileR1 = Hydrogen-telluride-3D-vdW.svg | ImageSizeR1 = 120px | ImageNameR1 = Space-filling model of the hydrogen telluride molecule | IUPACName = hydrogen telluride | OtherNames = hydrotelluric acid<br />tellane<br />tellurium hydride | Section1 = {{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 7783-09-7 | PubChem = 21765 | RTECS = }} | Section2 = {{Chembox Properties | Formula = H<sub>2</sub>Te | MolarMass = 129.6158 g mol<sup>−1</sup> | Appearance = colourless gas | Density = 3.310 g/cm<sup>3</sup>, gas <br> 2.57 g/cm<sup>3</sup> (-20 °C, liquid) | Solubility = 0.70 g/100 mL | MeltingPt = −49 °C (224 K) ( <ref>{{RubberBible87th}}</ref> | BoilingPt = −2.2 °C (271.8 K)(unstable above -2 °C) | pKa = 2.6 }} | Section4 = {{Chembox Thermochemistry | DeltaHf = 0.7684 kJ/g | DeltaHc = | Entropy = | HeatCapacity = }} | Section3 = {{Chembox Structure | MolShape = bent | Dipole = }} | Section7 = {{Chembox Hazards | ExternalMSDS = | MainHazards = toxic | FlashPt = | RPhrases = | SPhrases = }} | Section8 = {{Chembox Related | OtherAnions = [[water (molecule)|H<sub>2</sub>O]]<br />[[hydrogen sulfide|H<sub>2</sub>S]]<br />[[hydrogen selenide|H<sub>2</sub>Se]]<br />[[hydrogen polonide|H<sub>2</sub>Po]] | OtherCations = [[sodium telluride|Na<sub>2</sub>Te]]<br />[[silver(I) telluride|Ag<sub>2</sub>Te]] | OtherCpds = [[telluric acid]] <br> [[tellurous acid]] }} }} '''Hydrogen telluride''', also known as '''hydrotelluric acid''', '''tellane''', or '''tellurium hydride''', is a [[chemical compound]]. It is also an [[acid]]. Its chemical formula is H<sub>2</sub>Te. It contains [[hydrogen]] and [[telluride]] [[ion]]s. ==Properties== Hydrogen telluride is a toxic reactive gas. It easily decomposes to hydrogen and [[tellurium]]. It also burns in air t