九氢合铼(VII)酸钠

金属钠还原高铼酸钠或高铼酸铵的乙醇溶液可以得到。[4]

${\displaystyle {\mathsf {NH_{4}ReO_{4}+18Na+13C_{2}H_{5}OH\ {\xrightarrow {}}\ Na_{2}[ReH_{9}]\downarrow +13C_{2}H_{5}ONa+3NaOH+NH_{3}\cdot H_{2}O}}}$

Na₂[ReH₉]可溶于水和甲醇，微溶于乙醇。[4]

• Na₂[ReH₉]受热分解：

${\displaystyle {\mathsf {2Na_{2}[ReH_{9}]\ {\xrightarrow {245^{o}C}}\ 4NaH+2Re+7H_{2}}}}$

• 和热水反应：

${\displaystyle {\mathsf {Na_{2}[ReH_{9}]+5H_{2}O\ {\xrightarrow {100^{o}C}}\ NaReO_{4}+NaOH+9H_{2}}}}$

• Na₂[ReH₉]在碱性溶液中稳定，和稀酸反应放出氢气：[4]

${\displaystyle {\mathsf {2Na_{2}[ReH_{9}]+4HCl\ {\xrightarrow {}}\ 4NaCl+2Re\downarrow +11H_{2}\uparrow }}}$

• 加热情况下可以被热而浓的氧化剂氧化为高铼酸钠：

${\displaystyle {\mathsf {4Na_{2}[ReH_{9}]+22HNO_{3}\ {\xrightarrow {100^{o}C}}\ 4NaReO_{4}+9NH_{4}NO_{3}+4NaNO_{3}+11H_{2}O}}}$

${\displaystyle {\mathsf {Na_{2}[ReH_{9}]+9H_{2}O_{2}\ {\xrightarrow {100^{o}C}}\ NaReO_{4}+NaOH+13H_{2}O}}}$

• 可以被空气氧化：

${\displaystyle {\mathsf {4Na_{2}[ReH_{9}]+11O_{2}\ {\xrightarrow {\tau }}\ 4Re+8NaOH+14H_{2}O}}}$

• Cotton F A. Nonahydridorhenate Salts[M]// Inorganic Syntheses, Volume 13. John Wiley & Sons, Inc. 2007:219-225.