Sodium hydride CAS 7646-69-7
Bayanin Samfurin
Sunan Samfura: Sodium hydride
CAS:7646-69-7
MF: NaH
MW:24
EINECS: 231-587-3
Wurin narkewa: 800 °C (disamba) (haske)
yawa: 1.2
Zafin Ajiya: A adana a ƙasa da +30°C.
Narkewa: Yana narkewa a cikin sodium mai narkewa. Ba ya narkewa a cikin ammonia, benzene, carbon tetrachloride, carbon disulfide da duk sauran sinadarai na halitta.
Launi: Fari zuwa launin toka mai haske.
Kayayyakin Samfura
Sodium hydride yana cikin lu'ulu'u na ionic, mahadi na gishiri waɗanda hydrogen ɗin ke da ions na monovalent. Lokacin dumama, ba ya canzawa, yana narkewa ba tare da narkewa ba, kuma yana haifar da hydrolysis na sodium hydride tare da ruwa don shirya sodium hydroxide da hydrogen.
Tsarkakken sodium hydride lu'ulu'u ne masu kama da allurar azurfa, kayan da ake samu a kasuwa na sodium hydride yawanci foda ne mai launin toka mai laushi, rabon sodium hydride shine 25% zuwa 50% da aka watsa a cikin mai. Yawan da ke tsakaninsa shine 0.92. Sodium hydride tsari ne na gishirin dutse mai siffar crystalline (lattice constant a = 0.488nm), kuma kamar yadda lithium hydride yake a cikin ionic crystalline, hydrogen ion yana wanzuwa a cikin nau'in anion. Zafin samuwar shine 69.5kJ · mol-1, a babban zafin jiki na 800 ℃, yana rugujewa zuwa sodium da hydrogen na ƙarfe; yana rugujewa cikin ruwa; yana amsawa da ƙarfi tare da ƙananan barasa; yana narkewa a cikin sodium da aka narke da sodium hydroxide da aka narke; ba ya narkewa a cikin ruwa ammonia, benzene, carbon tetrachloride da carbon disulfide.
Toka mai kauri. Tsarkakken sodium hydride yana samar da lu'ulu'u masu siffar cubic marasa launi; duk da haka, samfurin da aka yi ciniki da shi ya ƙunshi alamun ƙarfe na sodium, yana ba shi launin toka mai haske. A matsin yanayi, sodium hydride yana haɓaka hydrogen a hankali sama da 300 ℃. A zafin 420 ℃ yana narkewa da sauri amma narkewa baya faruwa. Sodium hydride gishiri ne don haka ba ya narkewa a cikin abubuwan narkewa na halitta marasa aiki. Yana narkewa a cikin sodium hydroxide mai narkewa, a cikin sodium - potassium gami da kuma a cikin cakuda eutectic na LiCl - KCl (352 ℃). Sodium hydride yana da karko a cikin busasshiyar iska amma yana ƙonewa sama da 230 ℃, yana ƙonewa don samar da sodium oxide. Ana yin hydrolyzed da sauri a cikin iska mai danshi kuma a matsayin busasshiyar foda yana iya ƙonewa ba zato ba tsammani. Sodium hydride yana amsawa da ƙarfi sosai da ruwa, zafin hydrolysis ya isa ya kunna hydrogen da aka saki. Yana amsawa da carbon dioxide don samar da sodium formate.
Aikace-aikace
Ana iya amfani da sodium hydride don haɗakar sinadarai da kuma haɗakar sinadarai ta hanyar amfani da alkylation kuma ana iya amfani da shi azaman mai haɓaka sinadarai, ana amfani da shi don ƙera magunguna na roba kuma ana amfani da shi a masana'antar ƙamshi, ana amfani da shi don ƙera boron hydrides, ana amfani da shi azaman tsatsa a saman ƙarfe, wakili mai rage sinadarai, wakili mai narkewa, mai cire sinadarai da kuma reagents na Clay Johnson.
Ana amfani da shi azaman wakili mai narkewa, wakili mai narkewa da kuma wakili mai rage zafi, da sauransu. Yana da mahimmanci wajen rage zafi ga magunguna, turare, rini, amma kuma azaman maganin bushewa, wakili mai narkewa, da sauransu.
A yanayin zafi mai ƙarancin zafi inda ba a son rage halayen sodium kamar yadda yake a cikin daskararren ketones da aldehydes tare da acid esters; a cikin maganin da aka narkar da sodium hydroxide don rage sikelin oxide akan ƙarfe; a yanayin zafi mai yawa azaman wakili mai ragewa da mai haɓaka ragewa.
Ana amfani da sinadarin sodium hydride don haɓaka halayen danshi na mahaɗan carbonyl ta hanyar haɗakar Dieckmann, haɗakar Stobbe, haɗakar Darzens da haɗakar Claisen. Yana aiki azaman mai rage zafi da ake amfani da shi don shirya diborane daga boron trifluoride. Hakanan ana amfani da shi a cikin motocin ƙwayoyin mai. Bugu da ƙari, ana amfani da shi don busar da wasu sinadarai na halitta. Baya ga wannan, yana da hannu wajen shirya sulfur ylides, wanda ake amfani da shi don canza ketones zuwa epoxides.
Shiryawa & Ajiya
Marufi: 100g/gwangwani; 500g/gwangwani; 1kg/gwangwani; 20kg a kowace ganga ta ƙarfe
Ajiya: Ana iya adana shi a cikin gwangwanin ƙarfe mai murfin waje don kariya, ko kuma a cikin ganga na ƙarfe don hana lalacewar injiniya. A adana a wuri daban, mai sanyi, busasshe kuma mai iska mai kyau, kuma a hana danshi sosai. Gine-gine dole ne su kasance masu iska mai kyau kuma ba su da taruwar iskar gas.
Bayanin Sufuri
Lambar Majalisar Dinkin Duniya: 1427
Aji na Hadari: 4.3
Rukunin Marufi: I
Lambar HS: 28500090
Ƙayyadewa
| Sunan samfurin | Sodium hydride | |
| Lambar CAS | 7646-69-7 | |
| Abubuwa | Daidaitacce | Sakamako |
| Bayyanar | Barbashi masu tauri launin toka mai launin azurfa | Ya dace |
| Gwaji | ≥60% | Ya dace |
| Adadin sinadarin hydrogen mai aiki | ≥96% | Ya dace |
| Kammalawa | Ya yi daidai da Ma'aunin Kasuwanci | |
