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Potassium borohydride (CAS#13762-51-1)

Ngwongwo kemịkalụ:

Usoro ihe omimi BH4K
Molar Mass 53.94
Njupụta 1.18 g/mL na 25 Celsius C (ọkụ)
Ebe Na-agbaze 500 Celsius C (dec.) (ọkụ)
Mmiri Solubility 190 g/L (25 ºC)
Ọdịdị Ntụ ntụ
Nnukwu ike ndọda 1.178
Agba Ọcha
Merck 14,7616
Ọnọdụ Nchekwa ebe mmiri na-adịghị
Mmetụta Mmiri nwere mmetụta
Ntụgharị ntụgharị uche 1.494
Njirimara anụ ahụ na kemịkalụ Kristal ọcha ma ọ bụ ntụ ntụ ntụ ntụ-acha odo odo. Njupụta 1.178g/cm3. Obere hygroscopic n'ikuku, anaghị akwụsi ike. Na-agbaze na mmiri, jiri nwayọọ nwayọọ hapụ hydrogen. Soluble na mmiri mmiri amonia, amines, methanol-soluble, ethanol, insoluble na ether, benzene, Tetrahydrofuran, methyl ether na ndị ọzọ hydrocarbons. Enwere ike mebie ya site na acid iji hapụ hydrogen. Kwụsie ike na ntọala. Nreka na ihe dịka 500 Celsius C na oghere.
Jiri A na-eji ya dị ka ihe na-ebelata maka aldehydes, ketones na acid chlorides, wdg. A na-eji ya dị ka onye na-ebelata maka Analytical Chemistry, pesticides, ụlọ ọrụ akwụkwọ na ngwaahịa ndị ọzọ dị mma, a pụkwara iji ya mee ihe maka ọgwụgwọ nke nwere mercury. mmiri mkpofu, wdg.

Nkọwa ngwaahịa

Mkpado ngwaahịa

Koodu ihe egwu R14/15 -
R24/25 -
R34 - na-akpata ọkụ
R11 - Na-agba ọkụ nke ukwuu
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu.
S43 - Ọ bụrụ na eji ọkụ eme ihe… (a na-esote ụdị ngwa ọgụ ọkụ a ga-eji.)
S45 - Ọ bụrụ na ihe mberede ma ọ bụ ọ bụrụ na ahụ adịghị gị mma, chọọ ndụmọdụ ahụike ozugbo (gosi akara ahụ mgbe ọ bụla enwere ike.)
S7/8 -
S28A -
S16 - Wepụ ya na isi mmalite nke mgbanye.
NJ UN UN 1870 4.3/PG 1
WGK Germany -
RTECS TS7525000
Koodu FLUKA BRAND F 10
TSCA Ee
Koodu HS 2850 00 20
Klas Hazard 4.3
Otu nkwakọ ngwaahịa I
Nsi LD50 ọnụ na oke bekee: 167 mg / kg LD50 dermal oke bekee 230 mg / kg

 

Okwu mmalite

Potassium borohydride bụ ngwakọta inorganic. Njirimara ya bụ ndị a:

 

1. Ọdịdị: Potassium borohydride bụ ọcha crystalline ntụ ntụ ma ọ bụ granule.

 

3. Solubility: Potassium borohydride na-agbaze n'ime mmiri ma jiri nwayọọ nwayọọ mee ka mmiri na-emepụta hydrogen na potassium hydroxide.

 

4. Nnukwu ike ndọda: Njupụta nke potassium borohydride bụ ihe dịka 1.1 g/cm³.

 

5. Nkwụsi ike: N'okpuru ọnọdụ nkịtị, potassium borohydride dị ntakịrị, ma ọ nwere ike decompose na ọnụnọ nke okpomọkụ dị elu, oke iru mmiri na oxidants siri ike.

 

Isi ojiji nke potassium borohydride gụnyere:

 

1. Mmiri mmiri: Potassium borohydride nwere ike iji mee ihe dị ka reagent maka njikọ nke hydrogen, nke a na-emepụta site na iji mmiri mee ihe.

 

2. Ihe na-ebelata kemịkalụ: potassium borohydride nwere ike ibelata ogige dị iche iche na ogige organic kwekọrọ na ya dị ka alcohols, aldehydes, na ketones.

 

3. Metal elu ọgwụgwọ: Potassium borohydride nwere ike iji maka electrolytic hydrogenation ọgwụgwọ nke metal na-ebupụta iji belata elu oxides.

 

Ụzọ nkwadebe nke potassium borohydride gụnyere tumadi usoro mbelata kpọmkwem, usoro mgbochi na usoro mbelata ntụ ntụ aluminum. N'ime ha, a na-enweta usoro a na-ejikarị eme ihe site na mmeghachi omume nke sodium phenylborate na hydrogen n'okpuru ọrụ nke onye na-emepụta ihe.

 

Ozi nchekwa nke potassium borohydride bụ nke a:

 

1. Potassium borohydride nwere ike redicibility siri ike, na hydrogen na-emepụta mgbe ọ na-emeghachi omume na mmiri na acid, n'ihi ya, ọ dị mkpa ka a rụọ ya na ebe ikuku na-ekpo ọkụ.

 

2. Zere kọntaktị na akpụkpọ ahụ, anya, na akụkụ iku ume iji gbochie mgbakasị ahụ na mmerụ ahụ.

 

3. Mgbe ị na-echekwa na iji potassium borohydride, ekwesịrị ịkpachara anya iji gbochie kọntaktị na oxidants na ihe ndị ọzọ iji gbochie ọkụ ma ọ bụ mgbawa.

 

4. Ejikọtala potassium borohydride na ihe acidic iji zere ịmepụta gas dị ize ndụ.

 

5. Mgbe ị na-ekpofu ihe mkpofu potassium borohydride, ekwesịrị ịgbaso ụkpụrụ gburugburu ebe obibi na nchekwa dị mkpa.


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