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| Holmium acetate | |
|---|---|
| Names: | holmium(III) acetate holmium tricetate holmium(III) ethanoate |
| Formula: | Ho(CH3COO)3 (anhydrous) Ho(CH3COO)3 · 4H2O (tetrahydrate) |
| Molar mass: | 342.061 g/mol (anhydrous) 414.121 g/mol (tetrahydrate) |
| Crystal system: | triclinic (tetrahydrate) |
| Shapes: |
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| Color: | pale-yellow |
| Decomposition point: | 327 °C600.15 K <br />620.6 °F <br />1,080.27 °R <br /> (anhydrous) |
| Magnetic properties: | paramagnetic |
| Stability: | stable (tetrahydrate) |
| Hardness: | fragile |
| Toxicity: | moderately toxic |
Description
Organic compound, salt of trivalent rare earth metal holmium and organic acetic acid. From water solutions crystallizes as tetrahydrate.
Precursors
Reaction between holmium (III) oxide, hydroxide or carbonate and acetic acid
Chemical equation:
100.00g of holmium acetate tetrahydrate а 61.56g of holmium carbonate or 52.15g of hydroxide or 45.62g of oxide and 62.15g of 70% acetic acid is required.Add acid to the flask, then add small parts of holmium compound with stirring until it will totally dissolve or, if you use carbonate, until carbon dioxide emission will stop. After reaction will stop, filter the solution and use it for crystal growing.
Storage conditions
Store in its original form or under several layers of varnish at average humidity and room temperature. Do not store in matchboxes or cotton wool and do not heat.
Solubility
Gallery
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Crystal under polarizing microscopeHolmium acetate, Brain&Force, Imgur galleryImgur gallery
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Crystal under polarizing microscopeHolmium acetate, Brain&Force, Imgur galleryImgur gallery
Sources
| Acetates | |
|---|---|
| Salts |
Calcium acetate (Ca(CH3COO)2) • Copper(II) acetate (Cu(CH3COO)2) • Chromium(II) acetate (Cr(CH3COO)2) • Gadolinium acetate (Gd(CH3COO)3) • Dysprosium acetate (Dy(CH3COO)3) • Holmium acetate (Ho(CH3COO)3) • Iron(II) acetate (Fe(CH3COO)2) • Lead(II) acetate (Pb(CH3COO)2) • Manganese(II) acetate (Mn(CH3COO)2) • Neodymium acetate (Nd(CH3COO)3) • Nickel acetate (Ni(CH3COO)2) • Samarium acetate (Sm(CH3COO)3) • Strontium acetate (Sr(CH3COO)2) • Sodium acetate (NaCH3COO) • Zinc acetate (Zn(CH3COO)2) |
| Double Salts |
Copper-calcium acetate (CuCa(CH3COO)4) • Uranyl-sodium acetate (NaUО2(CH3COO)3) • Uranyl-zinc-sodium acetate (NaZn(UO2)3(CH3COO)9) |
| Holmium compounds | |
|---|---|
|
Holmium acetate (Ho(CH3COO)3) • Holmium sulfate (Ho2(SO4)3) |