Pentaerythritol CAS 115-77-5
| Risk Codes | 33 – Kev phom sij ntawm cov teebmeem tshwm sim |
| Kev nyab xeeb piav qhia | 24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. |
| WGK Germany | 1 |
| RTECS | RZ2490000 |
| TSCA | Yog lawm |
| HS Code | 29054200 ib |
| Toxicity | LD50 qhov ncauj hauv luav: > 5110 mg/kg LD50 dermal luav > 10000 mg/kg |
Taw qhia
2,2-Bis (hydroxymethyl) 1,3-propanediol, tseem hu ua TMP lossis trimethylalkyl triol, yog cov organic compound. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
Cov tsos mob: 2,2-Bis (hydroxymethyl) 1,3-propanediol yog xim tsis muaj xim rau cov kua qaub daj.
- Solubility: Nws yog soluble hauv dej thiab ntau yam organic solvents xws li ethers, alcohols, thiab ketones.
- Stability: Nws yog ib qho ruaj khov nyob rau hauv cov pa oxidation tej yam kev mob, tab sis yuav decompose nyob rau hauv kub thiab acidic tej yam kev mob.
Siv:
- Cov khoom siv hauv paus: 2,2-bis (hydroxymethyl) 1,3-propanediol yog cov tshuaj nruab nrab thiab cov khoom siv raw, uas tuaj yeem siv los ua ke rau lwm cov organic tebchaw.
- nplaim retardant: Nws tuaj yeem siv los ua cov nplaim hluav taws kub nyhiab hauv kev sib xyaw ntawm cov ntaub ntawv polyurea polymer thiab cov txheej txheem polymer.
- Kev npaj cov ester tebchaw: 2,2-Bis (hydroxymethyl) 1,3-propanediol tuaj yeem siv los npaj cov ester tebchaw, xws li polyol polyesters thiab polyester polymers.
Txoj kev:
- Nws tuaj yeem npaj los ntawm cov tshuaj tiv thaiv condensation ntawm formaldehyde thiab methanol: ua ntej, formaldehyde thiab methanol yog reacted nrog methanol nyob rau hauv alkaline tej yam kev mob los tsim methanol hydroxyformaldehyde, thiab ces 2,2-bis (hydroxymethyl) 1,3-propanediol yog tsim los ntawm lub condensation cov tshuaj tiv thaiv ntawm bimolecules thiab methanol nyob rau hauv acidic tej yam kev mob.
Cov ntaub ntawv kev nyab xeeb:
- 2,2-Bis (hydroxymethyl) 1,3-propanediol feem ntau muaj kev nyab xeeb raws li kev siv ib txwm siv, tab sis cov hauv qab no yuav tsum raug sau tseg:
- Tej zaum yuav muaj cov kab mob tsis zoo: Cov khoom lag luam muaj 2,2-bis (hydroxymethyl) 1,3-propanediol tuaj yeem muaj me me ntawm impurities lossis impurities, yog li ceev faj xyuas daim ntawv lo thiab yuav khoom los ntawm cov neeg muag khoom ntseeg siab thaum siv lawv.
- Cov tawv nqaij khaus: Nws tuaj yeem ua rau khaus khaus ntawm daim tawv nqaij thiab qhov muag, thiab kev ntsuas kev nyab xeeb tsim nyog yuav tsum tau ua thaum kov, xws li hnav cov hnab looj tes tshuaj thiab tsom iav, thiab zam kev sib cuag ncaj qha.
- Cia tej yam kev mob: Lub compound yuav tsum muab cia rau hauv ib qho chaw tsaus, qhuav thiab zoo-ventilated qhov chaw, deb ntawm hluav taws kub, kub, thiab oxidants.
- Toxicity: 2,2-Bis (hydroxymethyl) 1,3-propanediol tsis muaj tshuaj lom, tab sis tseem yuav tsum tau zam kom tsis txhob noj lossis nqus pa.
