Pentaerythritol CAS 115-77-5
| Xeerarka Khatarta | 33 - Khatarta saamaynta isugeynta |
| Sharaxaada Badbaadada | 24/25 - Ka fogow taabashada maqaarka iyo indhaha. |
| WGK Germany | 1 |
| RTECS | RZ2490000 |
| TSCA | Haa |
| Koodhka HS | 29054200 |
| Sunta | LD50 afka ah ee bakaylaha: > 5110 mg/kg LD50 bakaylaha maqaarka> 10000 mg/kg |
Hordhac
2,2-Bis (hydroxymethyl) 1,3-propanediol, oo sidoo kale loo yaqaan TMP ama trimethylalkyl triol, waa unug dabiici ah. Kuwa soo socdaa waa horudhac ku saabsan hantideeda, adeegsigeeda, hababka wax-soo-saarka iyo macluumaadka badbaadada:
Tayada:
- Muuqashada: 2,2-Bis (hydroxymethyl) 1,3-propanediol waa dareere aan midab lahayn ama huruud ah.
- Solubility: Waxay ku milmi kartaa biyaha iyo noocyo kala duwan oo dareerayaasha organic sida ethers, alcohols, iyo ketones.
- Xasilooni: Way xasiloon tahay xaaladaha oksaydhaynta caadiga ah, laakiin waxay ku dumin doontaa heerkulka sare iyo xaaladaha acidic.
Isticmaal:
Walaxda saldhigga ah: 2,2-bis (hydroxymethyl) 1,3-propanediol waa kiimiko dhexdhexaad ah iyo walxo cayriin oo aasaasi ah, kaas oo loo isticmaali karo in lagu soo saaro xeryahooda kale ee dabiiciga ah.
- Dab-demiska: Waxaa loo isticmaali karaa sidii ololka dab-demiska ee isku-dhafka maaddooyinka polymer-ka ee polyurea iyo daahan polymer.
- Diyaarinta xeryahooda ester-ka: 2,2-Bis (hydroxymethyl) 1,3-propanediol ayaa loo isticmaali karaa in lagu diyaariyo xeryahooda ester-ka, sida polyester-ka polyol iyo polyester-ka.
Habka:
Waxaa lagu diyaarin karaa falcelinta uumiga ee formaldehyde iyo methanol: marka hore, formaldehyde iyo methanol waxaa lagu falceliyaa methanol hoostooda xaaladaha alkaline si ay u sameeyaan methanol hydroxyformaldehyde, ka dibna 2,2-bis (hydroxymethyl) 1,3-propanediol waxaa sameeyay falcelinta uumiga ee bimolecules iyo methanol ee xaaladaha acidic.
Macluumaadka Badbaadada:
- 2,2-Bis (hydroxymethyl) 1,3-propanediol guud ahaan waa ku badbaado xaaladaha caadiga ah ee isticmaalka, laakiin kuwan soo socda waa in la ogaadaa:
- Waxa laga yaabaa inay wasakhaysan tahay: Ganacsiga la heli karo 2,2-bis(hydroxymethyl)1,3-propanediol waxa ku jiri kara xaddi yar oo wasakh ah ama wasakh ah, markaa ka taxdar inaad hubiso calaamada oo aad ka iibsato alaab-qeybiyeyaal lagu kalsoonaan karo markaad isticmaalayso.
- Xanaaq maqaarka: Waxa laga yaabaa in ay saameyn cadho leh ku yeelato maqaarka iyo indhaha, waana in la qaado tallaabooyinka badbaadada ee lagama maarmaanka ah marka la taabto, sida xidhashada galoofyada kiimikada ah iyo muraayadaha, iyo ka fogaanshaha xiriir toos ah.
- Xaaladaha kaydinta: Xarunta waa in lagu kaydiyaa meel mugdi ah, qalalan oo hawo fiican leh, kana fog dabka, heerkulka sare, iyo oksidayaasha.
- Sunta: 2,2-Bis (hydroxymethyl) 1,3-propanediol way ka yar tahay sunta, laakiin wali waa in laga fogaadaa nuugista ama neefsashada.
