Potassium borohydride (CAS # 13762-51-1)
| Risk Codes | R14/15 - R24/25 - R34 - Ua rau kub hnyiab R11 - Cov nplaim hluav taws kub heev |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S43 - Thaum siv hluav taws ... S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S7/8 - S28A - S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| UN IDs | UN 1870 4.3/PG 1 |
| WGK Germany | - |
| RTECS | TS 7525 000 |
| FLUKA BRAND F CODE | 10 |
| TSCA | Yog lawm |
| HS Code | 285000 20 |
| Hazard Class | 4.3 |
| Packing Group | I |
| Toxicity | LD50 qhov ncauj hauv luav: 167 mg/kg LD50 dermal Luav 230 mg/kg |
Taw qhia
Potassium borohydride yog ib qho inorganic compound. Nws cov khoom yog raws li nram no:
1. Cov tsos mob: Potassium borohydride yog dawb crystalline hmoov los yog granule.
3. Solubility: Potassium borohydride yog soluble hauv dej thiab maj mam hydrolyzed hauv dej los tsim hydrogen thiab potassium hydroxide.
4. Lub ntiajteb txawj nqus tshwj xeeb: Qhov ntom ntawm potassium borohydride yog li 1.1 g / cm³.
5. Kev ruaj ntseg: Nyob rau hauv ib txwm muaj, potassium borohydride kuj ruaj khov, tab sis nws yuav decompose nyob rau hauv muaj kub, high humidity thiab muaj zog oxidants.
Kev siv tseem ceeb ntawm potassium borohydride muaj xws li:
1. Hydrogen qhov chaw: Potassium borohydride tuaj yeem siv los ua ib qho reagent rau kev sib txuas ntawm hydrogen, uas yog tsim los ntawm reacting nrog dej.
2. Tshuaj txo tus neeg sawv cev: poov tshuaj borohydride tuaj yeem txo ntau yam sib xyaw ua ke rau cov organic tebchaw xws li cawv, aldehydes, thiab ketones.
3. Kev kho hlau saum npoo: Potassium borohydride tuaj yeem siv rau electrolytic hydrogenation kho cov hlau nto kom txo cov oxides saum npoo.
Txoj kev npaj ntawm poov tshuaj borohydride feem ntau suav nrog txoj kev txo ncaj qha, txoj kev tiv thaiv kab mob thiab txoj kev txo cov hmoov txhuas. Ntawm lawv, feem ntau siv txoj kev yog tau los ntawm cov tshuaj tiv thaiv ntawm sodium phenylborate thiab hydrogen nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst.
Cov ntaub ntawv kev nyab xeeb ntawm potassium borohydride yog raws li hauv qab no:
1. Potassium borohydride muaj zog reducibility, thiab hydrogen yog tsim thaum nws reacts nrog dej thiab acid, yog li nws yuav tsum tau ua nyob rau hauv ib tug zoo-ventilated qhov chaw.
2. Tsis txhob sib cuag nrog daim tawv nqaij, qhov muag, thiab ua pa ib ntsuj av tau los tiv thaiv kev khaus thiab raug mob.
3. Thaum khaws cia thiab siv cov poov tshuaj borohydride, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag nrog cov oxidants thiab lwm yam khoom kom tiv thaiv hluav taws los yog tawg.
4. Tsis txhob sib tov cov poov tshuaj borohydride nrog cov tshuaj acidic kom tsis txhob tsim cov pa phem.
5. Thaum pov tseg cov poov tshuaj borohydride pov tseg, yuav tsum ua raws li cov kev cai ib puag ncig thiab kev nyab xeeb.
