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imveliso

Potassium borohydride(CAS#13762-51-1)

Ipropati yeMichiza:

Ifomula yeemolekyuli BH4K
IMisa yeMolar 53.94
Ukuxinana 1.18 g/mL ku-25 °C (lit.)
Indawo yokunyibilika 500 °C (dec.) (ilayitiwe)
Ukunyibilika kwamanzi 190 g/L (25 ºC)
Imbonakalo Umgubo
Ubunzima obuthile 1.178
Umbala Mhlophe
Merck 14,7616
Imeko yoGcino indawo engenamanzi
Inovakalelo Ukungenwa kukufuma
Refractive Index 1.494
IiPropati zoMzimba kunye nezeMichiza Iikristale ezimhlophe okanye umgubo kancinane ongwevu-mthubi wekristale. Uxinaniso 1.178g/cm3. I-hygroscopic kancinci emoyeni, ayizinzanga. Nyibilika emanzini, ukhulule kancinci i-hydrogen. Inyibilika kwi-ammonia elulwelo, i-amines, i-methanol-enyibilikayo, i-ethanol, ayinyibiliki kwi-ether, benzene, iTetrahydrofuran, imethyl ether kunye nezinye iihydrocarbons. Inokubola ngeasidi ukukhulula i-hydrogen. Izinzile kwisiseko. Ukubola malunga ne-500 °c kwivacuum.
Sebenzisa Isetyenziswe njenge-arhente yokunciphisa i-aldehydes, i-ketones kunye ne-acid chlorides, njl. Isetyenziswe njenge-arhente yokunciphisa i-Analytical Chemistry, i-pesticides, imboni yephepha kunye nezinye iimveliso zemichiza emihle, kwaye ingasetyenziselwa unyango lwe-mercury-containing. amanzi amdaka, njl.

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R14/15 -
R24/25 -
I-R34 – Ibangela ukutsha
I-R11 – Iyatsha kakhulu
Inkcazelo yoKhuseleko S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso.
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.)
S7/8 -
S28A -
S16 – Gcina kude kwimithombo yomlilo.
Izazisi ze-UN UN 1870 4.3/PG 1
WGK eJamani -
RTECS TS7525000
FLUKA BRAND F IIKHOWUDI 10
I-TSCA Ewe
Ikhowudi ye-HS 2850 00 20
IKlasi yeeNgozi 4.3
Iqela lokuPakisha I
Ubutyhefu LD50 ngomlomo kuMvundla: 167 mg/kg LD50 dermal Umvundla 230 mg/kg

 

Intshayelelo

I-Potassium borohydride yi-inorganic compound. Iimpawu zayo zezi zilandelayo:

 

1. Ukubonakala: I-Potassium borohydride yi-crystalline powder emhlophe okanye i-granule.

 

3. Ukunyibilika: I-borohydride ye-Potassium iyanyibilika emanzini kwaye ngokuthe ngcembe i-hydrolyzed emanzini ukuvelisa i-hydrogen kunye ne-potassium hydroxide.

 

4. Ubunzima obuthile: Ubuninzi be-potassium borohydride bumalunga ne-1.1 g/cm³.

 

5. Ukuzinza: Phantsi kweemeko eziqhelekileyo, i-potassium borohydride izinzile, kodwa inokubola phambi kokushisa okuphezulu, umswakama ophezulu kunye ne-oxidants enamandla.

 

Ukusetyenziswa okuphambili kwe-potassium borohydride kubandakanya:

 

1. Umthombo we-Hydrogen: I-Potassium borohydride ingasetyenziswa njenge-reagent ye-synthesis ye-hydrogen, eveliswa ngokuphendula ngamanzi.

 

2. I-Agent yokunciphisa i-Chemical: i-borohydride ye-potassium inokunciphisa iindidi ze-compounds ezihambelana ne-organic compounds ezifana ne-alcohols, aldehydes, kunye ne-ketones.

 

3. Unyango lomphezulu wesinyithi: I-Potassium borohydride ingasetyenziselwa unyango lwe-electrolytic hydrogenation yeendawo zetsimbi ukunciphisa i-oxides yomhlaba.

 

Iindlela zokulungiselela i-potassium borohydride ikakhulu ziquka indlela yokunciphisa ngokuthe ngqo, indlela ye-antiborate kunye nendlela yokunciphisa i-aluminium powder. Phakathi kwabo, indlela esetyenziswa ngokuqhelekileyo ifunyenwe ngokusabela kwe-sodium phenylborate kunye ne-hydrogen phantsi kwesenzo se-catalyst.

 

Ulwazi lokhuseleko lwe-potassium borohydride lulandelayo:

 

1. I-Potassium borohydride ine-reducibility enamandla, kwaye i-hydrogen iveliswa xa isabela ngamanzi kunye ne-asidi, ngoko kufuneka iqhutywe kwindawo enomoya.

 

2. Kuphephe ukudibana nolusu, amehlo, kunye nendlela yokuphefumla ukuze uthintele ukucaphuka nokwenzakala.

 

3. Xa ugcina kwaye usebenzisa i-potassium borohydride, kufuneka kuthathelwe ingqalelo ukuthintela ukudibana nee-oxidants kunye nezinye izinto ukuthintela umlilo okanye ukuqhuma.

 

4. Musa ukuxuba i-borohydride ye-potassium kunye nezinto ezi-acidic ukuze ugweme ukubunjwa kweegesi eziyingozi.

 

5. Xa ulahla inkunkuma ye-potassium borohydride, imiqathango efanelekileyo yokusingqongileyo kunye nokhuseleko kufuneka ilandelwe.


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