Toggle search
Toggle menu
156
1.2K
31
3.7K
Crystal growing
Toggle preferences menu
Toggle personal menu
Not logged in
Your IP address will be publicly visible if you make any edits.

Ammonium thiocyanate

From Crystal growing
More languages
More actions


   Ammonium thiocyanate   
Names: ammonium thiocyanate
ammonium rhodanide
Formula: NH4NCS
Molar mass: 76.122 g/mol
Density: 1.305 g/cm3
Crystal system: monoclinic
α=90°, γ=90°
Shapes:
https://en.crystalls.info/w/uploads/media/a/ab/Trigonal_prism.json
Trigonal prism
https://en.crystalls.info/w/uploads/media/5/52/Needle.json
Needle

Color: colorless
white
Melting point: 149.6 °C422.75 K <br />301.28 °F <br />760.95 °R <br />
Decomposition point: 170 °C443.15 K <br />338 °F <br />797.67 °R <br />
Refractive index: 1.5016
Magnetic properties: diamagnetic
χ=-4.81 · 10-5cm³/mol
Stability: hygroscopic
Hardness: fragile
Toxicity: slightly toxic
LD50=720mg/kg

Description

Inorganic compound, salt of ammonium ion and inorganic thiocyanic acid. Doesn't form water hydrates.

Notes

Oxygen from the air oxidizes the compond, making solution color change to red or orange

Solubility

Temperatureg/100,00 g waterg/100,00 g ethanolg/100,00 g methanolg/100,00 g dmsog/100,00 g ethyl acetateg/100,00 g sulfur dioxideg/100,00 g ammoniag/100,00 g acetonitrileg/100,00 g dimethylformamideg/100,00 g tributyl phosphate
0°C273.15 K <br />32 °F <br />491.67 °R <br />12046.8
10°C283.15 K <br />50 °F <br />509.67 °R <br />144
18°C291.15 K <br />64.4 °F <br />524.07 °R <br />7.52
18.45°C291.6 K <br />65.21 °F <br />524.88 °R <br />23.56
20°C293.15 K <br />68 °F <br />527.67 °R <br />170
22°C295.15 K <br />71.6 °F <br />531.27 °R <br />11.6
24.58°C297.73 K <br />76.244 °F <br />535.914 °R <br />59
25°C298.15 K <br />77 °F <br />536.67 °R <br />19027331215.2
30°C303.15 K <br />86 °F <br />545.67 °R <br />208
32.94°C306.09 K <br />91.292 °F <br />550.962 °R <br />66.8
33.25°C306.4 K <br />91.85 °F <br />551.52 °R <br />27.45
50°C323.15 K <br />122 °F <br />581.67 °R <br />284
70°C343.15 K <br />158 °F <br />617.67 °R <br />431
Highly soluble in acetic acid. Soluble in acetone. Insoluble in nickel tetracarbonyl and chloroform.



Sources



   Thiocyanates

Ammonium thiocyanate (NH4NCS) • Potassium thiocyanate (KNCS)



   Ammonium compounds
Salts

Ammonium citrate ((NH4)3C3H5O(COO)3) • Ammonium chloride (NH4Cl) • Ammonium dichromate ((NH4)2Cr2O7) • Ammonium dihydrophosphate (NH4H2PO4) • Ammonium nitrate (NH4NO3) • Ammonium perrhenate (NH4ReO4) • Ammonium sulfate ((NH4)2SO4) • Ammonium succinate ((NH4)2C4H4O4) • Ammonium tetraborate ((NH4)2B4O7) • Ammonium thiocyanate (NH4NCS)

Double salts

Aluminum-ammonium sulfate (NH4Al(SO4)2) • Calcium-ammonium nitrate (5Ca(NO3)2 · NH4NO3) • Chromium(II)-ammonium sulfate ((NH4)2Cr(SO4)2) • Chromium(III)-ammonium sulfate (NH4Cr(SO4)2) • Cobalt(II)-ammonium sulfate ((NH4)2Co(SO4)2) • Cobalt(III)-ammonium sulfate (NH4Co(SO4)2) • Copper(II)-ammonium sulfate ((NH4)2Cu(SO4)2) • Iron(II)-ammonium sulfate ((NH4)2Fe(SO4)2) • Iron(III)-ammonium sulfate (NH4Fe(SO4)2) • Magnesium-ammonium sulfate ((NH4)2Mg(SO4)2) • Manganese(II)-ammonium sulfate ((NH4)2Mn(SO4)2) • Manganese(III)-ammonium sulfate (NH4Mn(SO4)2) • Nickel-ammonium sulfate ((NH4)2Ni(SO4)2) • Sodium-ammonium sulfate (NaNH4SO4) • Vanadium(II)-ammonium sulfate ((NH4)2V(SO4)2) • Vanadium(III)-ammonium sulfate (NH4V(SO4)2) • Zinc-ammonium sulfate ((NH4)2Zn(SO4)2)

Complexes

Ammines • Ammonium dioxalatocuprate(II) ((NH4)2[Cu(C2O4)2]) • Ammonium pentachloroferrate(III) ((NH4)2[FeCl5]) • Ammonium tetrachlorocuprate(II) ((NH4)2[CuCl4]) • Ammonium trioxalatoferrate(III) ((NH4)3[Fe(C2O4)3])

Retrieved from "https://en.crystalls.info/w/index.php?title=Ammonium_thiocyanate&oldid=15626"