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imveliso

I-sodium borohydride(CAS#16940-66-2)

Ipropati yeMichiza:

Ifomula yeemolekyuli BH4Na
IMisa yeMolar 37.83
Ukuxinana 1.035g/mLat 25°C
Indawo yokunyibilika >300 °C (dec.) (lit.)
Indawo yeBoling 500°C
Indawo yokuflasha 158°F
Ukunyibilika kwamanzi 550 g/L (25 ºC)
Imbonakalo iipilisi
Ubunzima obuthile 1.4
Umbala Mhlophe
Merck 14,8592
PH 11 (10g/l, H2O, 20℃)
Imeko yoGcino Gcina eRT.
Uzinzo Uzinzo Luzinzile, kodwa lusabela ngokukhawuleza emanzini (isenzo sinokuba nobundlobongela). Ayihambelani namanzi, i-oxidizing agents, i-carbon dioxide, i-hydrogen halides, i-acids, i-palladium, i-ruthenium kunye nenye ityuwa yesinyithi.
Inovakalelo Hygroscopic
Umda wokuqhushumba 3.02%(V)
IiPropati zoMzimba kunye nezeMichiza Umgubo omhlophe wekristale, kulula ukufunxa ukufuma, unokutsha xa kunomlilo
Sebenzisa Isetyenziswa njenge-agent yokunciphisa i-aldehydes, i-ketones kunye ne-acid chlorides, i-agent ekhupha ugwebu kwishishini leplastiki, i-ejenti yokuxutywa kwe-bleaching yokwenza iphepha kunye ne-hydrogenating agent yokuvelisa i-Dihydrostreptomycin kwishishini lamachiza.

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R60 – Ingaphazamisa ukuchuma
I-R61 – Inokubangela ukwenzakala kumntwana ongekazalwa
I-R15 – Ukudibana namanzi kukhulula iigesi ezinokutsha ngokugqithisileyo
I-R34 – Ibangela ukutsha
I-R23/24/25 – Ityhefu ngokuphefumla, xa udibana nesikhumba naxa uginyiwe.
R24/25 -
I-R35 – Ibangela ukutsha okumandundu
I-R21/22 – Iyingozi xa udibana nolusu kwaye ukuba uginyiwe.
R51/53 – Ityhefu kwizinto eziphila emanzini, inokubangela iziphumo ezibi zexesha elide kwindawo ehlala emanzini.
I-R42/43 – Inokubangela uvakalelo ngokuphefumla kunye nokudibana nolusu.
I-R49 – Isenokubangela umhlaza ngokuphefumla
I-R63 – Ingozi enokwenzeka yokwenzakala kumntwana ongekazalwa
I-R62 – Umngcipheko onokubakho wokuphazamiseka kokuchuma
I-R36/38 – Iyacaphukisa amehlo kunye nolusu.
I-R43 – Inokubangela uvakalelo ngokudibana nolusu
I-R19 – Isenokwenza iiperoxide ezidubulayo
R68 – Umngcipheko onokubakho weziphumo ezingajikiyo
R50/53 – Ityhefu kakhulu kwizinto eziphila emanzini, inokubangela iziphumo ezibi zexesha elide kwindawo ehlala emanzini.
Inkcazelo yoKhuseleko S53 – Kuphephe ukuba sesichengeni – fumana imiyalelo eyodwa phambi kokusetyenziswa.
S43 – Kwimeko yokusetyenziswa komlilo … (lulandela uhlobo lwezixhobo zokucima umlilo eziza kusetyenziswa.)
S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.)
S43A -
S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso.
S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S22 – Musa ukuphefumla uthuli.
S50-Sukuxubana ne...
S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu.
S61 –Kuphephe ukukhutshelwa kokusingqongileyo. Jonga kwimiyalelo ekhethekileyo / kumaphepha edatha yokhuseleko.
Izazisi ze-UN UN 3129 4.3/PG 3
WGK eJamani 2
RTECS ED3325000
FLUKA BRAND F IIKHOWUDI 10-21
I-TSCA Ewe
Ikhowudi ye-HS 28500090
IKlasi yeeNgozi 4.3
Iqela lokuPakisha I
Ubutyhefu LD50 ngomlomo kuMvundla: 160 mg/kg LD50 dermal Umvundla 230 mg/kg

 

Intshayelelo

I-sodium borohydride yi-inorganic compound. Ingumgubo oqinileyo onyibilika ngokulula emanzini kwaye uvelise isisombululo sealkaline.

 

I-sodium borohydride ineepropati zokunciphisa ezomeleleyo kwaye inokusabela kwizinto ezininzi eziphilayo. Isetyenziswa ngokubanzi kwi-organic synthesis kwaye ihlala isetyenziswa njenge-agent ye-hydrogenating. I-sodium borohydride inokunciphisa i-aldehydes, i-ketones, i-esters, njl njl kwii-alcohols ezihambelanayo, kwaye inokunciphisa i-asidi kwii-alcohols. I-sodium borohydride ingasetyenziswa kwi-decarboxylation, dehalogenation, denitrification kunye nezinye iimpendulo.

 

Ukulungiswa kwe-sodium borohydride ngokuqhelekileyo kufunyanwa ngokusabela kwe-borane kunye nesinyithi se-sodium. Okokuqala, isinyithi se-sodium sisabela nge-hydrogen ukulungiselela i-sodium hydride, kwaye emva koko iphendule nge-trimethylamine borane (okanye i-triethylaminoborane) kwi-solvent ye-ether ukufumana i-borohydride ye-sodium.

 

I-sodium borohydride yi-arhente yokunciphisa eyomeleleyo esabela ngokukhawuleza ngokufuma kunye neoksijini emoyeni ukukhulula i-hydrogen. Isitya kufuneka sivalwe ngokukhawuleza kwaye sigcinwe somile ngexesha lokusebenza. I-sodium borohydride iphinda isebenze ngokulula kunye neeasidi ukukhulula igesi ye-hydrogen, kwaye ukudibana neeasidi kufuneka kuphetshwe. I-sodium borohydride nayo iyityhefu, kwaye kufuneka kuthathelwe ingqalelo ukuphepha ukuphefumla okanye ukudibana kwesikhumba. Xa usebenzisa i-sodium borohydride, nxiba iiglavu zokukhusela kunye neeglasi, kwaye uqinisekise ukuba umsebenzi wenziwa kwindawo enomoya ococekileyo.


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