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huahana

Sodium borohydride(CAS#16940-66-2)

Waiwai Kemika:

ʻĀpana Molekala BH4Na
Molar Mass 37.83
ʻO ka mānoanoa 1.035g/mLat 25°C
Lae hehee >300 °C (Dek.) (kumu)
Lae Boling 500°C
Lae Flash 158°F
Hiki i ka wai 550 g/L (25 ºC)
Ka nana aku nā papa
Kaumaha Kūikawā 1.4
kalakala Keʻokeʻo
ʻO Merck 14,8592
PH 11 (10g/l, H2O, 20 ℃)
Kūlana Waihona Hale kūʻai ma RT.
Paʻa Paʻa Paʻa, akā hiki ke hana me ka wai (he ʻino paha ka hopena). ʻAʻole kūpono me ka wai, nā mea hoʻokahe, carbon dioxide, hydrogen halides, acids, palladium, ruthenium a me nā paʻakai metala ʻē aʻe.
Pilikino Hygroscopic
Pale Pahū 3.02%(V)
Na Waiwai Kino a Kimia ʻO ka pauka crystalline keʻokeʻo, maʻalahi ke komo i ka makū, hiki ke puhi i ke ahi
Hoʻohana Hoʻohana ʻia ia ma ke ʻano he mea hoʻohaʻahaʻa no ka aldehydes, ketones a me ka acid chlorides, kahi mea hoʻoheheʻe no ka ʻoihana plastic, kahi mea hoʻomaʻemaʻe no ka hana pepa a me kahi mea hydrogenating no ka hana ʻana o Dihydrostreptomycin i ka ʻoihana lāʻau.

Huahana Huahana

Huahana Huahana

Nā Code Risk R60 - Hiki ke hoʻopilikia i ka momona
R61 – Hiki ke hoʻopilikia i ke keiki hānau ʻole
R15 – Hoʻokuʻu ʻia ka pilina me ka wai i nā kinoea wela loa
R34 - Ke kumu o ke kuni
R23/24/25 – He mea make ma ka inhalation, pili me ka ili a ina e ale.
R24/25 -
R35 - Ke kumu o ke kuni nui
R21/22 – He pōʻino i ka pili ʻana me ka ʻili a inā ale ʻia.
R51/53 – Hiki ke hoʻopōʻino i nā mea ʻawaʻawa no ka wā lōʻihi i ke kaiaola wai.
R42/43 – Hiki ke hoʻoulu i ka naʻau ma ka inhalation a me ka pili ʻana i ka ʻili.
R49 - Hiki ke hoʻoulu i ka maʻi kanesa ma ka inhalation
R63 – Hiki ke pilikia i ke keiki hānau ʻole
R62 - He pilikia paha o ka hoʻoulu ʻana
R36/38 – Hoʻonanea i ka maka a me ka ʻili.
R43 – Hiki ke hoʻonāwaliwali i ka ʻili
R19 - Hiki ke hana i nā peroxide pahū
R68 - He pilikia paha o nā hopena hiki ʻole ke hoʻohuli ʻia
R50/53 – He mea ʻawaʻawa loa i nā mea ola i loko o ka wai, hiki ke hoʻopōʻino i ka wā lōʻihi i ke kaiaola.
Ka wehewehe palekana S53 - Hōʻalo i ka hoʻolaha - loaʻa nā ʻōlelo kuhikuhi kūikawā ma mua o ka hoʻohana ʻana.
S43 – Inā hoʻohana ʻia ke ahi… (ma hope o ke ʻano o nā lako hana ahi e hoʻohana ʻia.)
S45 – Inā loaʻa ka pōʻino a i ʻole ka maikaʻi ʻole, e ʻimi koke i ka ʻōlelo aʻo kino (e hōʻike i ka lepili inā hiki.)
S43A -
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S22 – Mai hanu i ka lepo.
S50 – Mai hui pū me…
S36/37 – E hoʻohana i nā lole pale kūpono a me nā mīkina lima.
S61 - Hōʻalo i ka hoʻokuʻu ʻana i ke kaiapuni. E nānā i nā ʻōlelo kuhikuhi kūikawā / pepa ʻikepili palekana.
UN ID UN 3129 4.3/PG 3
WGK Kelemānia 2
RTECS ED3325000
NUI FLUKA BRAND F 10-21
TSCA ʻAe
HS Code 28500090
Papa Hazard 4.3
Hui Pūʻulu I
Kaʻawaʻawa LD50 ma ka waha i ka Lapeti: 160 mg/kg LD50 dermal Rabbit 230 mg/kg

 

Hoʻolauna

ʻO ka sodium borohydride he mea hoʻohuihui ʻole. He pauda paʻa e hiki ke hoʻoheheʻe ʻia i ka wai a hoʻopuka i kahi hopena alkaline.

 

Loaʻa i ka sodium borohydride nā waiwai hoʻohaʻahaʻa ikaika a hiki ke hana pū me nā pūhui organik he nui. Hoʻohana nui ʻia ia i ka synthesis organik a hoʻohana pinepine ʻia ma ke ʻano he hydrogenating agent. Hiki i ka sodium borohydride ke hoʻemi i nā aldehydes, ketones, esters, etc. Hiki ke hoʻohana ʻia ka sodium borohydride i ka decarboxylation, dehalogenation, denitrification a me nā hopena ʻē aʻe.

 

ʻO ka hoʻomākaukau ʻana o ka sodium borohydride e loaʻa pinepine ʻia e ka hopena o ka borane a me ka metala sodium. ʻO ka mua, hoʻopili ʻia ka metala sodium me ka hydrogen e hoʻomākaukau ai i ka sodium hydride, a laila hana ʻia me ka trimethylamine borane (a i ʻole triethylaminoborane) i loko o ka mea hoʻoheheʻe etera e loaʻa ai ka sodium borohydride.

 

ʻO ka sodium borohydride kahi mea hoʻohaʻahaʻa ikaika e hana wikiwiki me ka wai a me ka oxygen i ka lewa e hoʻokuʻu i ka hydrogen. Pono e hoʻopaʻa koke ʻia ka pahu a maloʻo i ka wā e hana ai. Hiki ke hana maʻalahi ka sodium borohydride me nā ʻakika e hoʻokuʻu i ke kinoea hydrogen, a pono e pale ʻia ka pili ʻana me nā waikawa. He mea ʻawaʻawa nō hoʻi ka sodium borohydride, a pono e mālama ʻia e pale aku i ka inhalation a i ʻole ka pili ʻana i ka ʻili. I ka hoʻohana ʻana i ka sodium borohydride, e hoʻokomo i nā mīkina lima pale a me nā aniani, a e hōʻoia i ka hana ʻana i ka hana i loko o kahi ʻano maikaʻi.


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