HMDS may refer to:
* either of two related reagents in
organometallic chemistry:
**
Hexamethyldisilazane (
CH3)3Sisub>2NH)
**
Hexamethyldisilazide (
CH3)3Sisub>2NM)
*** M = Li as in
Lithium bis(trimethylsilyl)amide
Lithium bis(trimethylsilyl)amide is a lithiated organosilicon compound with the formula . It is commonly abbreviated as LiHMDS or Li(HMDS) (lithium hexamethyldisilazide - a reference to its conjugate acid HMDS) and is primarily used as a strong ...
(LiHMDS)
*** M = Na as in
Sodium bis(trimethylsilyl)amide
Sodium bis(trimethylsilyl)amide is the organosilicon compound with the formula . This species, usually called NaHMDS (sodium hexamethyldisilazide), is a strong base (chemistry), base used for deprotonation reactions or base-catalyzed reactions. It ...
(NaHMDS)
*** M = K as in
Potassium bis(trimethylsilyl)amide (KHMDS)
*
Hexamethyldisiloxane (O
i(CH3)3sub>2)
*
Her Majesty's Diplomatic Service
His Majesty's Diplomatic Service (HMDS) is the diplomatic service of the United Kingdom of Great Britain and Northern Ireland, dealing with foreign affairs and representing British interests overseas, as opposed to the Home Civil Service, which d ...
, of the United Kingdom
*
Helmet mounted display and sight, a system for military pilots
* ''
Harvest Moon DS'', a video game
{{disambiguation