Pentaerythritol CAS 115-77-5
| Risk Codes | 33 - Ngozi yekuwedzera mhedzisiro |
| Tsanangudzo Yekuchengetedza | 24/25 - Dzivisa kusangana neganda nemeso. |
| WGK Germany | 1 |
| RTECS | RZ2490000 |
| TSCA | Ehe |
| HS Code | 29054200 |
| Muchetura | LD50 nemuromo muTsuro: > 5110 mg/kg LD50 dermal Rabbit > 10000 mg/kg |
Nhanganyaya
2,2-Bis(hydroxymethyl)1,3-propanediol, inozivikanwawo seTMP kana trimethylalkyl triol, is an organic compound. Iyi inotevera sumo yezvivakwa zvayo, kushandiswa, nzira dzekugadzira uye ruzivo rwekuchengetedza:
Hunhu:
- Chitarisiko: 2,2-Bis(hydroxymethyl)1,3-propanediol is a colorless to yellowish viscous liquid.
- Solubility: Inonyungudika mumvura uye akasiyana organic solvents senge ethers, alcohols, uye ketones.
- Kugadzikana: Yakagadzikana pasi pezvakajairwa oxidation mamiriro, asi inoora pasi pekupisa kwakanyanya uye acidic mamiriro.
Shandisa:
- Base substance: 2,2-bis(hydroxymethyl)1,3-propanediol ikemikari yepakati uye yakakosha mbishi, inogona kushandiswa kugadzira mamwe organic komisheni.
-Murazvo unodzoreredza: Inogona kushandiswa seyakadzoreredza murazvo mukubatanidzwa kwe polyurea polymer zvinhu uye polymer coating.
- Kugadzirira ester compounds: 2,2-Bis (hydroxymethyl) 1,3-propanediol inogona kushandiswa kugadzirira ester compounds, zvakadai se polyol polyesters uye polyester polymers.
Nzira:
- Inogona kugadzirwa ne condensation reaction ye formaldehyde uye methanol: kutanga, formaldehyde uye methanol inobatwa ne methanol pasi pe alkaline mamiriro ekugadzira methanol hydroxyformaldehyde, uye ipapo 2,2-bis (hydroxymethyl) 1,3-propanediol inoumbwa ne condensation reaction ye bimolecules uye methanol pasi pe acidic mamiriro.
Zvekuchengetedza
- 2,2-Bis(hydroxymethyl)1,3-propanediol kazhinji yakachengeteka pasi pemamiriro akajairwa ekushandiswa, asi zvinotevera zvinofanirwa kucherechedzwa:
- Inogona kunge yakasvibiswa: Inotengeswa 2,2-bis (hydroxymethyl) 1,3-propanediol inogona kunge iine zviduku zvishoma zvetsvina kana tsvina, saka chenjerera kutarisa chinyorwa uye kutenga zvigadzirwa kubva kune vanovimbika vatengesi paunenge uchivashandisa.
- Kushatirwa kweganda: Inogona kuve nemhedzisiro inoshatirisa paganda nemeso, uye inodiwa matanho ekuchengetedza anofanirwa kutorwa kana abatwa, sekupfeka magirovhosi emakemikari uye magirazi, uye kudzivirira kusangana kwakananga.
- Mamiriro ekuchengetedza: Mushonga unofanirwa kuchengetwa munzvimbo ine rima, yakaoma uye ine mhepo yakanaka, kure nemoto, tembiricha yakakwira, uye oxidants.
- Toxicity: 2,2-Bis(hydroxymethyl)1,3-propanediol haina muchetura, asi inofanira kuramba ichidziviswa nokuda kwekupinza kana kufema.
