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Sodium borohydride (CAS#16940-66-2)

Abubuwan Sinadarai:

Tsarin kwayoyin halitta BH4 Na
Molar Mass 37.83
Yawan yawa 1.035g/mLat 25°C
Matsayin narkewa > 300 ° C (dec.) (lit.)
Matsayin Boling 500°C
Wurin Flash 158°F
Ruwan Solubility 550 g/L (25ºC)
Bayyanar allunan
Takamaiman Nauyi 1.4
Launi Fari
Merck 14,8592
PH 11 (10g/l, H2O, 20 ℃)
Yanayin Ajiya Store a RT.
Kwanciyar hankali Stability Stable, amma yana amsawa cikin sauri da ruwa (amsa na iya zama tashin hankali). Rashin jituwa da ruwa, oxidizing jamiái, carbon dioxide, hydrogen halides, acid, palladium, ruthenium da sauran karfe gishiri.
M Hygroscopic
Iyakar fashewa 3.02% (V)
Abubuwan Jiki da Sinadarai Farin lu'u-lu'u foda, mai sauƙin ɗaukar danshi, mai ƙonewa idan akwai wuta
Amfani Ana amfani dashi azaman wakili mai ragewa ga aldehydes, ketones da acid chlorides, wakili mai kumfa don masana'antar filastik, wakili mai bleaching don yin takarda da kuma wakili na hydrogenating don kera Dihydrostreptomycin a cikin masana'antar harhada magunguna.

Cikakken Bayani

Tags samfurin

Lambobin haɗari R60 - Zai iya lalata haihuwa
R61 - Zai iya haifar da lahani ga yaron da ba a haifa ba
R15 - Saduwa da ruwa yana 'yantar da iskar gas mai ƙonewa
R34 - Yana haifar da konewa
R23 / 24/25 - Mai guba ta hanyar numfashi, a cikin hulɗa da fata kuma idan an haɗiye shi.
R24/25 -
R35 - Yana haifar da ƙonewa mai tsanani
R21/22 - Yana cutar da fata kuma idan an haɗiye shi.
R51/53 - Mai guba ga halittun ruwa, na iya haifar da illa na dogon lokaci a cikin yanayin ruwa.
R42/43 - Yana iya haifar da hankali ta hanyar shakar numfashi da tuntuɓar fata.
R49 - Yana iya haifar da ciwon daji ta hanyar numfashi
R63 - Haɗarin cutarwa ga ɗan da ba a haifa ba
R62 - Haɗarin da zai yuwu na rashin haihuwa
R36 / 38 - Iriting ga idanu da fata.
R43 - Yana iya haifar da hankali ta hanyar saduwa da fata
R19 - Zai iya samar da peroxides masu fashewa
R68 - Haɗarin da ba za a iya jurewa ba
R50/53 - Mai guba mai guba ga halittun ruwa, na iya haifar da illa na dogon lokaci a cikin yanayin ruwa.
Bayanin Tsaro S53 – Guji fallasa – sami umarni na musamman kafin amfani.
S43 - Idan ana amfani da wuta… (akwai nau'in kayan aikin kashe gobara da za a yi amfani da su.)
S45 - Idan akwai haɗari ko kuma idan kun ji rashin lafiya, nemi shawarar likita nan da nan (nuna alamar a duk lokacin da zai yiwu.)
S43A-
S36 / 37/39 - Sanya tufafin kariya masu dacewa, safar hannu da kariya / ido / fuska.
S26 - Idan ana hulɗa da idanu, kurkura nan da nan da ruwa mai yawa kuma ku nemi shawarar likita.
S22 - Kada ku shaka kura.
S50 - Kar ku haɗu da…
S36/37 - Sanya tufafin kariya da safar hannu masu dacewa.
S61 - Guji saki zuwa yanayi. Koma zuwa umarni na musamman / takaddun bayanan aminci.
ID na UN UN 3129 4.3/PG 3
WGK Jamus 2
RTECS Saukewa: ED3325000
FLUKA BRAND F CODES 10-21
Farashin TSCA Ee
HS Code Farashin 2850090
Matsayin Hazard 4.3
Rukunin tattarawa I
Guba LD50 na baki a cikin zomo: 160 mg/kg LD50 dermal Rabbit 230 mg/kg

 

Gabatarwa

Sodium borohydride wani fili ne na inorganic. Wani foda ne mai ƙarfi wanda ke saurin narkewa cikin ruwa kuma yana samar da maganin alkaline.

 

Sodium borohydride yana da ƙarfi rage kaddarorin kuma yana iya amsawa tare da mahadi masu yawa. Ana amfani da shi sosai a cikin ƙwayoyin halitta kuma ana amfani dashi sau da yawa azaman wakili na hydrogenating. Sodium borohydride zai iya rage aldehydes, ketones, esters, da dai sauransu zuwa barasa masu dacewa, kuma yana iya rage acid zuwa barasa. Sodium borohydride kuma za a iya amfani da a decarboxylation, dehalogenation, denitrification da sauran halayen.

 

Shirye-shiryen sodium borohydride gabaɗaya ana samun su ta hanyar halayen borane da ƙarfe na sodium. Da farko, ana mayar da ƙarfen sodium da hydrogen don shirya sodium hydride, sannan a mayar da martani da trimethylamine borane (ko triethylaminoborane) a cikin ether sauran ƙarfi don samun sodium borohydride.

 

Sodium borohydride wakili ne mai ƙarfi mai ragewa wanda ke amsawa da sauri tare da danshi da iskar oxygen a cikin iska don sakin hydrogen. Ya kamata a rufe akwati da sauri kuma a bushe yayin aiki. Sodium borohydride kuma yana amsawa cikin sauƙi da acid don sakin iskar hydrogen, kuma yakamata a guji hulɗa da acid. Sodium borohydride shima mai guba ne, kuma yakamata a kula don gujewa shakar numfashi ko haduwar fata. Lokacin amfani da sodium borohydride, sanya safar hannu masu kariya da tabarau, kuma tabbatar da cewa an gudanar da aikin a cikin yanayi mai kyau.


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