Sodium hydride CAS 7646-69-7
Nkọwa Ngwaahịa
Aha Ngwaahịa: Sodium hydride
CAS:7646-69-7
MF: NaH
MW:24
EINECS: 231-587-3
Ebe ịgbaze: 800 °C (nkeji iri na abụọ) (ọkụ)
njupụta: 1.2
Ọnọdụ okpomọkụ nchekwa: Debe ya n'okpuru +30°C.
Mmiri: A na-agbaze na sodium agbaze. A naghị agbaze na ammonia, benzene, carbon tetrachloride, carbon disulfide na ihe mgbaze niile dị ndụ.
Agba: Ọcha ruo isi awọ siri ike.
Njirimara Ngwaahịa
Sodium hydride bụ nke kristal ionic, ihe ndị mejupụtara nnu nke hydrogen bụ ion monovalent na-adịghị mma. Mgbe a na-ekpo ọkụ, ọ naghị eguzosi ike, ọ na-emebi emebi na-agbazeghị agbaze, mmeghachi omume hydrolysis nke sodium hydride na mmiri iji kwadebe sodium hydroxide na hydrogen.
Sodium hydride dị ọcha bụ kristal dị ka agịga ọlaọcha, ngwaahịa sodium hydride dị maka azụmaahịa na-abụkarị ntụ ntụ kristal isi awọ dị nro, oke nke sodium hydride bụ 25% ruo 50% agbasasị na mmanụ. Njupụta ya dị 0.92. Sodium hydride bụ ụdị nhazi nnu nkume kristal (lattice constant a = 0.488nm), dịka lithium hydride na kristal ionic, hydrogen ion dị n'ụdị anion. Okpomọkụ nke mmepụta bụ 69.5kJ · mol-1, na oke okpomọkụ nke 800 ℃, ọ na-agbaze ghọọ sodium metal na hydrogen; na-agbaze ngwa ngwa na mmiri; na-emeghachi omume nke ọma na obere mmanya; na-agbaze na sodium gbazere agbaze na sodium hydroxide gbazere agbaze; anaghị agbaze na ammonia mmiri mmiri, benzene, carbon tetrachloride na carbon disulfide.
Isi awọ siri ike. Sodium hydride dị ọcha na-emepụta kristal cubic na-enweghị agba; agbanyeghị, ngwaahịa azụmaahịa nwere obere sodium metal, na-enye ya agba ntụ ntụ dị mfe. N'ọnọdụ nrụgide ikuku, sodium hydride na-agbanwe hydrogen nwayọ nwayọ karịa 300 ℃. Na 420 ℃ ire ere na-adị ngwa ngwa mana agbaze anaghị eme. Sodium hydride bụ nnu ma si otú a ghara ịgbaze na ihe mgbaze organic na-adịghị arụ ọrụ. Ọ na-agbaze na sodium hydroxide agbaze, na sodium - potassium alloys na na ngwakọta eutectic LiCl - KCl agbaze (352 ℃). Sodium hydride kwụsiri ike na ikuku kpọrọ nkụ mana ọ na-agba ọkụ karịa 230 ℃, na-ere ọkụ iji mepụta sodium oxide. A na-eme ka ọ dị mmiri mmiri ngwa ngwa na ikuku mmiri dị mmiri mmiri, dịka ntụ ntụ kpọrọ nkụ, ọ na-ere ọkụ ozugbo. Sodium hydride na-emeghachi omume nke ukwuu na mmiri, okpomọkụ nke hydrolysis zuru oke iji gbaa hydrogen ewepụtara. Ọ na-emeghachi omume na carbon dioxide iji mepụta sodium formate.
Ngwa
Enwere ike iji sodium hydride mee ihe maka mmetụ na mmeghachi omume alkylation, a pụkwara iji ya dị ka ihe na-akpali polymerization, nke a na-eji eme ihe maka imepụta ọgwụ sịntetik ma jiri ya mee ihe n'ụlọ ọrụ ihe na-esi ísì ụtọ, nke a na-eji emepụta boron hydrides, nke a na-eji dị ka nchara elu ígwè, ihe na-ebelata ihe, ihe na-eme ka ihe ghara ịdị ọcha, ihe na-eme ka ihe ghara ịdị ọcha na ihe na-eme ka ihe ghara ịdị ọcha na ihe na-eme ka ihe ghara ịdị ọcha na ihe na-eme ka ihe ghara ịdị ọcha na ihe ndị ...-eme ka ihe ghara ịdị ọcha.
A na-eji ya eme ihe dịka ihe na-eme ka ihe ghara ịdị ọcha, ihe na-eme ka ihe ghara ịdị ọcha na ihe na-ebelata ihe mgbu, wdg. Ọ bụ ihe dị mkpa maka ọgwụ, ihe na-esi ísì ụtọ, agba, kamakwa dịka ihe na-akpọ nkụ, ihe na-eme ka ihe ghara ịdị ọcha, wdg.
N'okpomọkụ dị ala ebe a naghị achọ mbelata ihe onwunwe nke sodium dịka ọ dị na njikọta nke ketones na aldehydes na acid esters; na ngwọta ya na sodium hydroxide agbazere agbaze maka mbelata nke nha oxide na ọla; na okpomọkụ dị elu dị ka ihe na-ebelata ma na-akpalite mbelata.
A na-eji sodium hydride eme ka mmeghachi omume nke ihe ndị mejupụtara carbonyl dịkwuo mma site na mmiri Dieckmann, mmiri Stobbe, mmiri Darzens na mmiri Claisen. Ọ na-arụ ọrụ dị ka ihe na-ebelata ihe eji akwadebe diborane site na boron trifluoride. A na-ejikwa ya na ụgbọala mmanụ ụgbọala. Ọzọkwa, a na-eji ya akpọọ nkụ ụfọdụ ihe mgbaze organic. Na mgbakwunye na nke a, ọ na-etinye aka na nkwadebe nke sulfur ylides, nke a na-eji eme mgbanwe nke ketones ka ọ bụrụ epoxides.
Nkwakọba na Nchekwa
Nkwakọba: 100g/ tin tin; 500g/ tin tin; 1kg kwa tin tin; 20kg kwa drum ígwè
Nchekwa: Enwere ike ịchekwa ya n'ime ite ígwè nwere mkpuchi mpụta maka nchekwa, ma ọ bụ n'ime drum ígwè iji gbochie mmebi igwe. Debe ya n'ebe dị iche, dị jụụ, kpọrọ nkụ ma nwee ikuku dị mma, ma gbochie mmiri mmiri nke ọma. Ụlọ ndị ahụ ga-enwerịrị ikuku dị mma ma nwee oghere na-enweghị gas.
Ozi njem
Nọmba UN: 1427
Klas Ihe Ize Ndụ: 4.3
Otu Mbukota: I
Koodu HS: 28500090
Nkọwapụta
| Aha ngwaahịa | Sodium hydride | |
| Nọmba CAS | 7646-69-7 | |
| ihe | Ọkọlọtọ | Nsonaazụ |
| Ọdịdị | Mkpụrụ siri ike nke ọlaọcha isi awọ | Kwekọrọ |
| Nnwale | ≥60% | Kwekọrọ |
| Ọnụọgụ haịdọn na-arụ ọrụ | ≥96% | Kwekọrọ |
| Mmechi | Kwekọrọ n'Ụkpụrụ Ụlọ Ọrụ | |
