Pentaerythritol CAS 115-77-5
| Zizindikiro Zowopsa | 33 - Kuopsa kwa zotsatira zowonjezera |
| Kufotokozera Zachitetezo | 24/25 - Pewani kukhudzana ndi khungu ndi maso. |
| WGK Germany | 1 |
| Mtengo wa RTECS | RZ2490000 |
| TSCA | Inde |
| HS kodi | 29054200 |
| Poizoni | LD50 pakamwa pa Kalulu: > 5110 mg/kg LD50 dermal Kalulu> 10000 mg/kg |
Mawu Oyamba
2,2-Bis(hydroxymethyl)1,3-propanediol, yomwe imadziwikanso kuti TMP kapena trimethylalkyl triol, ndi organic pawiri. Zotsatirazi ndizofotokozera za katundu wake, ntchito, njira zopangira ndi chitetezo:
Ubwino:
- Maonekedwe: 2,2-Bis(hydroxymethyl)1,3-propanediol ndi madzi opanda mtundu mpaka chikasu viscous.
- Kusungunuka: Imasungunuka m'madzi ndi zosungunulira zosiyanasiyana monga ma ethers, ma alcohols, ndi ma ketoni.
- Kukhazikika: Imakhala yokhazikika pansi pamikhalidwe yokhazikika ya okosijeni, koma imawola ndi kutentha kwambiri komanso acidic.
Gwiritsani ntchito:
- Base zinthu: 2,2-bis(hydroxymethyl)1,3-propanediol ndi mankhwala wapakatikati ndi zofunika zopangira, amene angagwiritsidwe ntchito synthesize ena organic mankhwala.
- Chobwezeretsanso moto: Itha kugwiritsidwa ntchito ngati choletsa moto popanga zinthu za polyurea polima ndi zokutira za polima.
- Kukonzekera kwa mankhwala a ester: 2,2-Bis(hydroxymethyl)1,3-propanediol angagwiritsidwe ntchito pokonzekera mankhwala a ester, monga polyol polyesters ndi polyester polima.
Njira:
- Ikhoza kukonzedwa ndi condensation reaction ya formaldehyde ndi methanol: choyamba, formaldehyde ndi methanol amachitidwa ndi methanol pansi pa zinthu zamchere kuti apange methanol hydroxyformaldehyde, ndiyeno 2,2-bis (hydroxymethyl) 1,3-propanediol imapangidwa ndi condensation anachita bimolecules ndi methanol pansi acidic mikhalidwe.
Zambiri Zachitetezo:
- 2,2-Bis(hydroxymethyl)1,3-propanediol nthawi zambiri imakhala yotetezeka pakagwiritsidwe ntchito, koma izi ziyenera kudziwidwa:
- Zitha kukhala zodetsa: Zogulitsa 2,2-bis(hydroxymethyl)1,3-propanediol zitha kukhala ndi zonyansa zazing'ono kapena zonyansa, kotero samalani kuti muwone zolembazo ndikugula zinthu kuchokera kwa ogulitsa odalirika mukamagwiritsa ntchito.
- Kupsa mtima pakhungu: Kukhoza kukhala ndi zotsatira zokwiyitsa pakhungu ndi maso, ndipo njira zotetezera ziyenera kuchitidwa zikakhudza, monga kuvala magolovesi a mankhwala ndi magalasi, komanso kupewa kukhudza mwachindunji.
- Miyezo yosungiramo: Pawiriyi iyenera kusungidwa pamalo amdima, owuma komanso mpweya wabwino, kutali ndi moto, kutentha kwambiri, ndi okosijeni.
- Kawopsedwe: 2,2-Bis(hydroxymethyl)1,3-propanediol ndi yocheperako, koma iyenera kupewedwa kuti ilowedwe kapena kupumira.
