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Potassium borohydride(CAS#13762-51-1)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule BH4K
'Misa oa Molar 53.94
Botenya 1.18 g/mL ho 25 °C (hote.)
Melting Point 500 °C (Dec.) (hote.)
Ho qhibiliha ha Metsi 190 g/L (25 ºC)
Ponahalo Phofo
Matla a Khoheli a khethehileng 1.178
Mmala Bosoeu
Merck 14,7616
Boemo ba polokelo sebaka se senang metsi
E hloahloa E Mamela Mongobo
Refractive Index 1.494
Thepa ea 'Mele le ea Lik'hemik'hale Likristale tse tšoeu kapa phofo ea kristale e mosehla hanyane. Boima ba 1.178g/cm3. E batla e le hygroscopic moeeng, e sa tsitsang. Qhibiliha ka metsing, butle-butle lokolla hydrogen. E qhibiliha ka ammonia ea metsi, amine, methanol-soluble, ethanol, ha e qhibilihe ka har'a ether, benzene, Tetrahydrofuran, methyl ether le hydrocarbon tse ling. E ka bola ka asiti ho lokolla hydrogen. E tsitsitseng motheong. Ho bola hoo e ka bang 500 °c ka vacuum.
Sebelisa E sebelisoa e le ntho e fokotsang bakeng sa aldehydes, ketone le acid chlorides, joalo-joalo E sebelisoa e le ntho e fokotsang bakeng sa Analytical Chemistry, chefo e bolaeang likokoanyana, indasteri ea pampiri le lihlahisoa tse ling tse ntle tsa lik'hemik'hale, hape e ka sebelisoa bakeng sa phekolo ea mercury-containing. metsi a litšila, joalo-joalo.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R14/15 -
R24/25 -
R34 – E baka ho cha
R11 – E tuka Haholo
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho.
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.)
S7/8 -
S28A -
S16 - Ipoloke hole le mehloli ea mollo.
Li-ID tsa UN UN 1870 4.3/PG 1
WGK Jeremane -
RTECS TS7525000
LIKHOUTU FLUKA BRAND F 10
TSCA Ee
Khoutu ea HS 2850 00 20
Sehlopha sa Likotsi 4.3
Sehlopha sa ho paka I
Chefo LD50 ka molomo ho Mmutla: 167 mg/kg LD50 dermal Mmutla 230 mg/kg

 

Selelekela

Potassium borohydride ke motsoako oa inorganic. Lintho tsa eona ke tse latelang:

 

1. Ponahalo: Potassium borohydride ke phofo e tšoeu ea kristale kapa granule.

 

3. Solubility: Potassium borohydride e qhibiliha ka metsing 'me butle-butle e kenngoa ke hydrolyzed ka metsing ho hlahisa hydrogen le potassium hydroxide.

 

4. Matla a khoheli a khethehileng: Tekanyo ea potassium borohydride e ka ba 1.1 g/cm³.

 

5. Botsitso: Tlas'a maemo a tloaelehileng, potassium borohydride e batla e tsitsitse, empa e ka 'na ea senyeha ka pel'a mocheso o phahameng, mongobo o phahameng le li-oxidants tse matla.

 

Tšebeliso ea mantlha ea potassium borohydride e kenyelletsa:

 

1. Mohloli oa Hydrogen: Potassium borohydride e ka sebelisoa e le reagent bakeng sa motsoako oa hydrogen, e hlahisoang ke ho itšoara ka metsi.

 

2. Lik'hemik'hale tse fokotsang lik'hemik'hale: potassium borohydride e ka fokotsa mefuta e sa tšoaneng ea metsoako ho metsoako ea lintho tse phelang tse kang joala, aldehydes le ketone.

 

3. Kalafo ea holim'a tšepe: Potassium borohydride e ka sebelisoa bakeng sa phekolo ea electrolytic hydrogenation ea libaka tsa tšepe ho fokotsa li-oxide tsa holim'a metsi.

 

Mekhoa ea ho itokisa ea potassium borohydride haholo-holo e kenyelletsa mokhoa oa ho fokotsa ka ho toba, mokhoa oa antiborate le mokhoa oa ho fokotsa phofo ea aluminium. Har'a bona, mokhoa o sebelisoang ka ho fetisisa o fumanoa ka karabelo ea sodium phenylborate le hydrogen tlas'a ketso ea catalyst.

 

Lintlha tsa polokeho ea potassium borohydride ke tse latelang:

 

1. Potassium borohydride e na le ho fokotseha ho matla, 'me hydrogen e hlahisoa ha e arabela ka metsi le asiti, kahoo e hloka ho sebetsoa sebakeng se nang le moea o motle.

 

2. Qoba ho kopana le letlalo, mahlo, le tsela ea ho hema ho thibela ho teneha le kotsi.

 

3. Ha u boloka le ho sebelisa potassium borohydride, tlhokomelo e lokela ho nkoa ho thibela ho kopana le li-oxidants le lintho tse ling ho thibela mollo kapa ho phatloha.

 

4. U se ke ua kopanya potassium borohydride le lintho tse acidic ho qoba ho thehoa ha likhase tse kotsi.

 

5. Ha ho lahla litšila tsa potassium borohydride, ho lokela ho lateloa melao e amehang ea tikoloho le polokeho.


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  • E 'ngoe:

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