I-Pentaerythritol CAS 115-77-5
| Amakhodi Engozi | 33 - Ingozi yemiphumela eqoqwayo |
| Incazelo Yokuphepha | 24/25 - Gwema ukuthintana nesikhumba namehlo. |
| I-WGK Germany | 1 |
| I-RTECS | RZ2490000 |
| I-TSCA | Yebo |
| Ikhodi ye-HS | 29054200 |
| Ubuthi | I-LD50 ngomlomo kuNogwaja: > 5110 mg/kg LD50 dermal Rabbit > 10000 mg/kg |
Isingeniso
I-2,2-Bis(hydroxymethyl)1,3-propanediol, eyaziwa nangokuthi i-TMP noma i-trimethylalkyl triol, iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo zayo, ukusetshenziswa kwayo, izindlela zokukhiqiza kanye nolwazi lokuphepha:
Ikhwalithi:
- Ukubukeka: I-2,2-Bis(hydroxymethyl)1,3-propanediol iwuketshezi lwe-viscous olungenambala ukuya kokuphuzi.
- I-Solubility: Incibilika emanzini kanye nenhlobonhlobo yezincibilikisi eziphilayo njenge-ethers, i-alcohol, nama-ketones.
- Ukuzinza: Azinzile ngaphansi kwezimo ezivamile ze-oxidation, kodwa izobola ngaphansi kwezimo zokushisa eziphezulu kanye nezimo ezine-asidi.
Sebenzisa:
- Isisekelo sento: 2,2-bis(hydroxymethyl)1,3-propanediol iyikhemikhali ephakathi nendawo futhi eyisisekelo, engasetshenziswa ukuhlanganisa ezinye izinhlanganisela eziphilayo.
- I-flame retardant: Ingasetshenziswa njenge-flame retardant ekuhlanganiseni kwezinto ze-polyurea polymer kanye ne-polymer coatings.
- Ukulungiswa kwama-ester compounds: I-2,2-Bis (i-hydroxymethyl) i-1,3-propanediol ingasetshenziswa ukulungisa ama-ester compounds, njenge-polyester polyester kanye ne-polyester polymers.
Indlela:
- Ingalungiselelwa ukusabela kwe-condensation kwe-formaldehyde ne-methanol: okokuqala, i-formaldehyde ne-methanol isabela nge-methanol ngaphansi kwezimo ze-alkaline ukwakha i-methanol hydroxyformaldehyde, bese i-2,2-bis (hydroxymethyl) i-1,3-propanediol yakhiwa ukusabela kwe-condensation kwama-bimolecules ne-methanol ngaphansi kwezimo ezine-acidic.
Ulwazi Lokuphepha:
I-2,2-Bis(hydroxymethyl)1,3-propanediol ngokuvamile iphephile ngaphansi kwezimo ezivamile zokusetshenziswa, kodwa okulandelayo kufanele kuqashelwe:
- Ingase ibe ukungcola: I-2,2-bis(hydroxymethyl)1,3-propanediol etholakala ngokwentengiso ingase iqukathe amanani amancane okungcola noma ukungcola, ngakho qaphela ukuhlola ilebula futhi uthenge imikhiqizo kubahlinzeki abathembekile uma uyisebenzisa.
- Ukucasuka kwesikhumba: Kungase kube nomthelela ocasulayo esikhumbeni nasemehlweni, futhi kufanele kuthathwe izinyathelo zokuphepha ezidingekayo lapho uthintwa, njengokugqoka amagilavu amakhemikhali kanye nezibuko, nokugwema ukuthintana ngqo.
- Izimo zesitoreji: Inhlanganisela kufanele igcinwe endaweni emnyama, eyomile futhi enomoya omuhle, kude nomlilo, amazinga okushisa aphezulu, kanye nama-oxidants.
- Ubuthi: I-2,2-Bis(hydroxymethyl)1,3-propanediol inobuthi obuncane, kodwa kusafanele igwenywe ukuze imunce noma ihogele.
