
tetramethylamonium hydroxide

n (ch3) 4 + oh− enna tanmatra soothravaakyamulla oru kwaattenari amonium lavanamaan tetramethylamonium hydroxide (tmah allengil tmah). vellathilo methanolilo kendreekarichirikkunna laayanikalude roopathilaanu ithu saadhaaranayaayi kaanappedunnath. tima kharaavasthayilum athinte jaleeya laayanikalilum ellaam niramillaathavayaanu, ennaal ashudhamaanengil manjanirathilaakaam. shudhamaayirikkumbol thamaykku phalatthil durgandhamillengilum, saadhaarana ashudhamaaya trimethilaamaininte saannidhyam kaaranam saambilukalkku palappozhum sakthamaaya malsya gandhamund. tmaik niravadhi vaividhyamaarnna vyaavasaayika, gaveshana aaplikkeshanukal undu.
raasa gunangal.
ghadana.
jaleeya layaniyaayum ~2-25% ll ninnulla saandrathayaayum methanolile layanikalaayum tmah saadhaaranayaayi kaanapedunnu. eee pariharangal thirichariyunnathu cases nambar <aii. dii. 1>. n (ch3) 4h·xh2o polulla niravadhi hydrateukal. christalise cheythittundu. eee lavanangalil nannayi verthirichirikkunna mee4enn + kaatteshanukalum hydroxide ionukalum adangiyirikkunnu (mee ennathu methyl grouppinte churukkapperaan). hydroxide grouppukale hydrajan bondukal chrystalisation vellavumayi bandhippikkunnu. anhydrus thmaa verthiricheduthittil.
thayyaareduppu.
wackerudeyum jonstaninteyum aadyakaala thayyaareduppukalilonnaan, tetramethylamonium chloridinteyum pottasyam hydroxidinteyum uppu metathasis prathikaranatthiloode ithu undaakki, varanda methanol, tmah layikkunnu, pakshe pottasyam chloride allah
ivide njaan methyl groupine soochippikkunnu,-ch3.
eee report oru trihydratinte nilanilpp shradhikkukayum, oru trihydrate aanennu soochippikkukayum, oru pentahydrate tmaa verthirikkunnathinulla vishadaamshangal nalkukayum cheiyunnu, koodaathe aadyathethu polum anthareekshathile eerppathinum kaarban dye ooksaidinum vendi prakadippikkunna avagananaye oonnipparayunnu. eee rachayithakkal pentahydratinte dravanaangam 62-63 °C aanennum 15 °C-ll vellathile layaneeyata sharashari 220 gram/100 millie aanennum report cheythu.
prathikaranangal.
thmaa parukkanaan. 160 digri selshyasil 6 meter nohile athinte ardhaayuss> 61 manikkooraan.
tmaa lalithamaaya assid-bays prathikaranangalkk vidheyamaayi tetramethylamonium (tma) lavanangal uthpaadippikkunnu, avayude ayoon aasidil ninnu uruthirinjathaanu. tetramethylamonium fluoride thayyarakkunnathu udaaharanamaanu 
tmaa lalithamaaya ionukal adangiya mattu niravadhi tma lavanangalum thaapaparamaayi trimethilaamainaayi vighadikkunnu. methanolinekkaal pradhaanamaaya oru vighadana ulppannamaanu dimethyl eedhar. aadarshaparamaaya samavaakyam ithaanu
swathukkal.
valare sakthamaaya aditharayaanu thmaa.
upayogikkunnu.
silikkaninte anisotropic kothupaniyaanu tmaaude vyaavasaayika upayogangalilonnu. photolithography prakriyayil acidic photorasistukalude vikasanathil ithu oru adisthaana laayakamaayi upayogikkunnu, koodaathe photorasistukale neekkam cheiyunnathil ithu valare falapradamaanu. tmahinu chila ghatta kaimatta kaattalist gunangalundu. pherophluidukalude samanvayathilum nanoparticle aggregation thadayunnathilum ithu oru sarfaktantaayum upayogikkunnu.
pyrolysis, analyteukalude kemikkal derivatisation enniva ulppedunna vishakalana saankethikavidyayaya thermochemolysisil upayogikkunna ettavum saadhaaranamaaya reyejantukalil onnaanu tmah.
nananja anisotropic kothupani.
kwaattenari amonium hydroxide (qah) laayanikalude kudumbatthil pedunna thmaa silikkanil saadhaaranayaayi isotropicalaayi kothupanikalaayi upayogikkunnu. loha ayoon malineekaranathodu samvedanakshamathayulla prayogangalil soodiyam allengil pottasyam hydroxidenekkaal prayojanakaramaanu tmah. saadhaarana etching thaapanila 70 muthal 90 digri selshyas vareyum saadhaarana saandrata 5-25 Wt vareyumaanu.% tmaa vellathil. (100) silikkan etching nirakkukal saadhaaranayaayi thapanilaykkum vardhichuvarunna tmah saandrathaykkum anusarichu vardhikkunnu. kothupanikalulla (100) silikkan uparithalathile parukkanta vardhichuvarunna tmah saandrathayode kurayukayum 20 sathamaanam tmah laayanikaliloode minusamarnna prathalangal nedukayum cheiyunnu. echu nirakkukal saadhaaranayaayi minittil 0.1-1 micrometer paridhiyilaan.
tmaaile neelamulla kothupanikalkkulla saadhaarana masking vasthukkalil silikkan dye ooksaid (elpsivedy, thermal), silikkan nitride enniva ulppedunnu. silikkan nitride tmahil valare kuranja echu rettu undu. tmaaile silikkan dye ooksaidinte echu nirakk philiminte gunanilavaarathinanusarichu vyathyaasappedunnu, pakshe saadhaaranayaayi minittil 0.1 enm kramathilaanu.
toxicology.
tetramethylamonium ayoon njarambukaleyum peshikaleyum baadikkukayum shwasana budhimuttukal, peshi pakshaaghaatham, maranam ennivaykku kaaranamaakukayum cheiyunnu. neuro muscular jangshanileyum autoonoomik ganglia oru pradhana neuro traansmittaya asattailkolinumaayi ithu gadanaaparamaayi bandhappettirikkunnu. ithu oru agonistaayi pravartthikkumbol, eee gadanaaparamaaya saamyam athinte vishaamshathinte samvidaanathil prathifalikkunnu-ithu nicotinic asattailkolin resepterukalumaayi bandhippikkukayum sajeevamaakkukayum cheiyunnu, ennirunnaalum agonistinte thudarchayaaya saannidhyathil avaa samvedanakshamatha kuranjekkaam. tetramethilaamoniyathi pravartthanam autoonoomik gaangliyayilaanu ettavum kooduthal prakadamaakunnathu, athinaal tetramethylamoniathe parambaraagathamaayi ganglian-uttejaka marunnayi tharamthirikkunnu.
aakasmikamaaya vyaavasaayika eksposharinethudarnnulla maranangalkk ganglionic efakttukal kaaranamaayirikkam. "eee sakthamaaya adithara moolamundaakunna "raasa pollalukalum" gurutharamaan. tmaaude saandreekritha layanikalumaayulla charmma sanbarkkathiloode visham sambhavikkaamennathin thelivukalundu.

