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sehlahisoa

Sodium borohydride(CAS#16940-66-2)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule BH4Na
'Misa oa Molar 37.83
Botenya 1.035g/mLat 25°C
Melting Point >300 °C (Dec.) (hote.)
Boling Point 500°C
Flash point 158°F
Ho qhibiliha ha Metsi 550 g/L (25 ºC)
Ponahalo matlapa
Matla a Khoheli a khethehileng 1.4
Mmala Bosoeu
Merck 14,8592
PH 11 (10g/l, H2O, 20℃)
Boemo ba polokelo Lebenkele ho RT.
Botsitso Botsitso E tsitsitse, empa e arabela habonolo ka metsi (karabelo e ka ba mabifi). Ha e lumellane le metsi, li-oxidizing agents, carbon dioxide, hydrogen halides, acids, palladium, ruthenium le letsoai le leng la tšepe.
E hloahloa Hygroscopic
Qeto ea ho phatloha 3.02%(V)
Thepa ea 'Mele le ea Lik'hemik'hale Phofo e tšoeu ea kristale, e bonolo ho monya mongobo, e ka cha haeba ho ka chesa
Sebelisa E sebelisoa e le ntho e fokotsang li-aldehydes, ketone le acid chlorides, ntho e phophomang bakeng sa indasteri ea polasetiki, sesebelisoa sa bleaching bakeng sa ho etsa pampiri le hydrogenating agent bakeng sa tlhahiso ea Dihydrostreptomycin indastering ea meriana.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R60 – E ka senya thari
R61 – E ka baka kotsi ho ngwana ya esong ho hlahe
R15 – Ho kopana le metsi ho lokolla digase tse tukang haholo
R34 – E baka ho cha
R23/24/25 – E na le chefo ka ho hema, ho kopana le letlalo le haeba e koetsoe.
R24/25 -
R35 – E baka ho cha ho matla
R21/22 – E kotsi ha e ama letlalo mme e kwetswe.
R51/53 – Chefo ho lintho tse phelang metsing, e ka baka litlamorao tsa nako e telele tikolohong ea metsing.
R42/43 – E ka baka maikutlo a matla ka ho hema le ho ama letlalo.
R49 – E ka baka mofetshe ka ho hema
R63 – Kotsi e ka bang teng ya kotsi ho ngwana ya esong ho hlahe
R62 – Kotsi e ka bang teng ya ho se sebetse ha bana
R36/38 – Ho hlohlona mahlong le letlalong.
R43 - E ka etsa hore maikutlo a be teng ka ho ama letlalo
R19 - E ka etsa peroxides e phatlohang
R68 – Kotsi e ka bang teng ya ditlamorao tse ke keng tsa etsollwa
R50/53 – Chefo e ngata ho lintho tse phelang metsing, e ka baka litlamorao tsa nako e telele tikolohong ea metsing.
Tlhaloso ea Tšireletseho S53 - Qoba ho pepeseha - fumana litaelo tse khethehileng pele u li sebelisa.
S43 – Ha ho sebelisoa mollo … (ho latela mofuta oa thepa ea ho tima mollo e tla sebelisoa.)
S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.)
S43A -
S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho.
S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S22 - U se ke ua hema lerole.
S50 - Se ke oa tsoakana le ...
S36/37 - Apara liaparo tse loketseng tsa tšireletso le liatlana.
S61 - Qoba ho lokolloa tikolohong. Sheba litaelo tse khethehileng / maqephe a tšireletso.
Li-ID tsa UN UN 3129 4.3/PG 3
WGK Jeremane 2
RTECS ED3325000
LIKHOUTU FLUKA BRAND F 10-21
TSCA Ee
Khoutu ea HS 28500090
Sehlopha sa Likotsi 4.3
Sehlopha sa ho paka I
Chefo LD50 ka molomo ho Mmutla: 160 mg/kg LD50 dermal Mmutla 230 mg/kg

 

Selelekela

Sodium borohydride ke motsoako oa inorganic. Ke phofo e tiileng e qhibilihang habonolo metsing 'me e hlahisa tharollo ea alkaline.

 

Sodium borohydride e na le thepa e matla ea ho fokotsa 'me e ka sebetsana le metsoako e mengata ea tlhaho. E sebelisoa haholo ho organic synthesis mme hangata e sebelisoa e le moemeli oa hydrogenating. Sodium borohydride e ka fokotsa aldehydes, ketone, ester, joalo-joalo ho ea ho joala bo tsamaisanang le eona, hape e ka fokotsa acid ho joala. Sodium borohydride e ka boela ea sebelisoa ho decarboxylation, dehalogenation, denitrification le liketso tse ling.

 

Ho lokisoa ha sodium borohydride hangata ho fumanoa ka karabelo ea borane le tšepe ea sodium. Ntlha ea pele, tšepe ea sodium e itšoara ka hydrogen ho lokisa sodium hydride, ebe e itšoara ka trimethylamine borane (kapa triethylaminoborane) ka ether solvent ho fumana sodium borohydride.

 

Sodium borohydride ke ntho e matla e fokotsang e sebetsanang ka potlako le mongobo le oksijene moeeng ho lokolla hydrogen. Setshelo se lokela ho kwalwa kapele mme se bolokwe se omme nakong ya tshebetso. Sodium borohydride e boetse e arabela habonolo ka li-acids ho lokolla khase ea hydrogen, 'me ho kopana le li-acid ho lokela ho qojoa. Sodium borohydride le eona e chefo, 'me tlhokomelo e lokela ho nkoa ho qoba ho hema kapa ho kopana le letlalo. Ha u sebelisa sodium borohydride, roala liatlana tse sireletsang le likhalase, 'me u netefatse hore ts'ebetso e etsoa sebakeng se nang le moea o motle.


  • E fetileng:
  • E 'ngoe:

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