Pentaerythritol CAS 115-77-5
| Awọn koodu ewu | 33 – Ewu ti akojo ipa |
| Apejuwe Abo | 24/25 - Yẹra fun olubasọrọ pẹlu awọ ara ati oju. |
| WGK Germany | 1 |
| RTECS | RZ2490000 |
| TSCA | Bẹẹni |
| HS koodu | 29054200 |
| Oloro | LD50 ẹnu ni Ehoro:> 5110 mg/kg LD50 dermal Ehoro> 10000 mg/kg |
Ifaara
2,2-Bis (hydroxymethyl) 1,3-propanediol, ti a tun mọ ni TMP tabi trimethylalkyl triol, jẹ ẹya-ara Organic. Atẹle jẹ ifihan si awọn ohun-ini rẹ, awọn lilo, awọn ọna iṣelọpọ ati alaye ailewu:
Didara:
- Irisi: 2,2-Bis (hydroxymethyl) 1,3-propanediol jẹ awọ ti ko ni awọ si omi viscous yellowish.
- Solubility: O jẹ tiotuka ninu omi ati ọpọlọpọ awọn olomi Organic gẹgẹbi ethers, alcohols, ati ketones.
- Iduroṣinṣin: O jẹ iduroṣinṣin diẹ labẹ awọn ipo ifoyina ti aṣa, ṣugbọn yoo decompose labẹ iwọn otutu giga ati awọn ipo ekikan.
Lo:
Ohun elo ipilẹ: 2,2-bis (hydroxymethyl) 1,3-propanediol jẹ agbedemeji kemikali ati ohun elo aise ipilẹ, eyiti o le ṣee lo lati ṣajọpọ awọn agbo ogun Organic miiran.
- Idaduro ina: O le ṣee lo bi imuduro ina ni iṣelọpọ ti awọn ohun elo polymer polyurea ati awọn ohun elo polymer.
- Igbaradi ti awọn agbo ogun ester: 2,2-Bis (hydroxymethyl) 1,3-propanediol ni a le lo lati ṣeto awọn agbo ogun ester, gẹgẹbi polyol polyesters ati polyester polymers.
Ọna:
O le ṣetan nipasẹ ifasilẹ ifasilẹ ti formaldehyde ati methanol: akọkọ, formaldehyde ati kẹmika ti wa ni fesi pẹlu kẹmika labẹ awọn ipo ipilẹ lati ṣe agbekalẹ methanol hydroxyformaldehyde, ati lẹhinna 2,2-bis (hydroxymethyl) 1,3-propanediol ti ṣẹda nipasẹ awọn ifaseyin condensation ti bimolecules ati methanol labẹ awọn ipo ekikan.
Alaye Abo:
2,2-Bis (hydroxymethyl) 1,3-propanediol jẹ ailewu gbogbogbo labẹ awọn ipo deede ti lilo, ṣugbọn atẹle yẹ ki o ṣe akiyesi:
- O le jẹ idoti: 2,2-bis (hydroxymethyl) ti o wa ni iṣowo ti 1,3-propanediol le ni awọn iwọn kekere ti awọn idoti tabi awọn aimọ, nitorina ṣọra lati ṣayẹwo aami ati rira awọn ọja lati ọdọ awọn olupese ti o gbẹkẹle nigba lilo wọn.
- Irun awọ ara: O le ni ipa ibinu lori awọ ara ati oju, ati pe o yẹ ki o ṣe awọn ọna aabo ti o yẹ nigbati o ba fi ọwọ kan, gẹgẹbi wọ awọn ibọwọ kemikali ati awọn goggles, ati yago fun olubasọrọ taara.
- Awọn ipo ipamọ: Apopọ yẹ ki o wa ni ipamọ ni dudu, gbẹ ati aaye ti o dara daradara, kuro lati ina, awọn iwọn otutu giga, ati awọn oxidants.
- Majele ti: 2,2-Bis (hydroxymethyl) 1,3-propanediol jẹ majele ti o kere ju, ṣugbọn o yẹ ki o tun yẹra fun jijẹ tabi ifasimu.
