Pentaerythritol CAS 115-77-5
| Iikhowudi zoMngcipheko | 33 – Ingozi yeziphumo ezongezelekayo |
| Inkcazelo yoKhuseleko | 24/25-Kuphephe ukudibana nolusu kunye namehlo. |
| WGK eJamani | 1 |
| RTECS | RZ2490000 |
| I-TSCA | Ewe |
| Ikhowudi ye-HS | 29054200 |
| Ubutyhefu | I-LD50 ngomlomo kuMvundla: > 5110 mg/kg LD50 dermal Rabbit > 10000 mg/kg |
Intshayelelo
I-2,2-Bis (i-hydroxymethyl) i-1,3-propanediol, eyaziwa ngokuba yi-TMP okanye i-trimethylalkyl triol, i-organic compound. Oku kulandelayo sintshayelelo kwiipropati zayo, ukusetyenziswa, iindlela zokuvelisa kunye nolwazi lokhuseleko:
Umgangatho:
- Imbonakalo: 2,2-Bis (hydroxymethyl) 1,3-propanediol yinto engenambala kulwelo viscous emthubi.
- Ukunyibilika: Inyibilika emanzini kunye neentlobo ngeentlobo zezinyibilikisi eziphilayo ezifana ne-ethers, i-alcohol, kunye nee-ketones.
- Uzinzo: Uzinzile phantsi kweemeko eziqhelekileyo ze-oxidation, kodwa ziya kubola phantsi kobushushu obuphezulu kunye neemeko ze-acidic.
Sebenzisa:
- Isiseko se-substance: 2,2-bis (hydroxymethyl) 1,3-propanediol yikhemikhali ephakathi kunye nesiseko sezinto ezibonakalayo, ezingasetyenziselwa ukudibanisa ezinye izinto eziphilayo.
- I-Flame retardant: Ingasetyenziswa njenge-flame retardant kwi-synthesis yezinto ze-polyurea ze-polymer kunye neengubo ze-polymer.
- Ukulungiswa kwee-ester compounds: i-2,2-Bis (i-hydroxymethyl) i-1,3-propanediol ingasetyenziselwa ukulungiselela i-ester compounds, njenge-polyester polyester kunye ne-polyester polymers.
Indlela:
-Inokulungiswa ngokuphendula kwe-condensation ye-formaldehyde kunye ne-methanol: okokuqala, i-formaldehyde kunye ne-methanol ziphendulwa nge-methanol phantsi kweemeko ze-alkaline ukwenza i-methanol hydroxyformaldehyde, kwaye ke i-2,2-bis (hydroxymethyl) i-1,3-propanediol yenziwe ukusabela kwe-condensation yee-bimolecules kunye ne-methanol phantsi kweemeko ze-acidic.
Ulwazi ngoKhuseleko:
- 2,2-Bis(hydroxymethyl)1,3-propanediol ngokuqhelekileyo ikhuselekile phantsi kweemeko eziqhelekileyo zokusetyenziswa, kodwa oku kulandelayo kufuneka kuqatshelwe:
- Inokungcola: I-2,2-bis (i-hydroxymethyl) ekhoyo ngokurhweba (hydroxymethyl) 1,3-propanediol inokuthi iqulethe ixabiso elincinci lokungcola okanye ukungcola, ngoko qaphela ukujonga ileyibhile kunye nokuthenga iimveliso ezivela kubanikezeli abathembekileyo xa usebenzisa.
- Ukucaphuka kwesikhumba: Kunokuba nefuthe elicaphukisayo eluswini kunye namehlo, kwaye amanyathelo okhuseleko ayimfuneko kufuneka athathwe xa uphathwa, njengokugqoka iiglavu zekhemikhali kunye nezibuko, kunye nokuphepha ukudibana ngokuthe ngqo.
- Iimeko zokugcinwa: Ikhompawundi kufuneka igcinwe kwindawo emnyama, eyomileyo kwaye engenamoya kakuhle, kude nomlilo, amaqondo obushushu aphezulu, kunye ne-oxidants.
- Ubuthi: I-2,2-Bis (i-hydroxymethyl) i-1,3-propanediol ayinayo ityhefu encinci, kodwa kufuneka igwenywe ukuba ifakwe okanye i-inhalation.
