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4,4′-Diphenylmethane diisocyanate(CAS#101-68-8) Ata Fa'aalia
  • 4,4′-Diphenylmethane diisocyanate(CAS#101-68-8) 1

4,4′-Diphenylmethane diisocyanate(CAS#101-68-8)

Meatotino tau vailaau:

Fuafua mole C15H10N2O2
Molar Mass 250.25
Malosi 1.19
Lisi Lisi 38-44 °C
Fa'ailoga Tulaga 392 °C
Mata'imu 196 °C
Suavai Solubility pala
Solubility 2g/l (palapala)
Ausa Malo 0.066 hPa (20 °C)
Fa'aaliga mama
Gravity Fa'apitoa 1.180
Lanu Pa'epa'e i Toeitiiti pa'epa'e
Tapulaa o Fa'aaliga TLV-TWA 0.051 mg/m3 (0.005 ppm)(ACGIH ma NIOSH); taualuga (ea) 0.204mg/m3 (0.02 ppm)/10 min (NIOSH maOSHA); IDLH 102 mg/m3 (10 ppm).
BRN 797662
Tulaga Teuteu -20°C
Maumau Stable. E mu. E le fetaui ma vailaʻau faʻamaʻi malosi. E fa'atupu vevesi i 'ava malosi.
Ma'ale'ale Susū ma'ale'ale/Lachrymatory
Tapulaa Pa 0.4%(V)
Fa'asino Upu 1.5906 (fa'atatau)
Meatotino Faaletino ma Vailaau O le uiga o se lanu samasama samasama u'amea malo ma se manogi fa'aitaita malosi.
mea vevela 196 ℃
tulaga malulu 37 ℃
va'aiga va'aiga 1.1907
soluble i le acetone, benzene, kerosene, nitrobenzene.fa'amumū: 200-218

fa'ailoga fa'afoliga: 1.5906
Fa'aoga Fa'aoga i totonu o palasitika ma pa'u alamanuia ma pei o se fa'apipi'i

Fa'amatalaga Oloa

Faailoga o oloa

Tulaga lamatia R42/43 – E ono fa'atupu ai le fa'alogona i le manava ma le pa'u o le pa'u.
R36/37/38 – Fa'aitaita'i i mata, faiga manava ma le pa'u.
R20 – E afaina pe a manava
R48/20 -
R40 – Fa'amaoniga fa'atapula'a o se a'afiaga tuga
Fa'amatalaga Saogalemu S45 – I se fa'alavelave po'o ua e lagona le le lelei, saili vave fautuaga fa'afoma'i (fa'aali le igoa pe a mafai.)
S36/37 – Fai ofu puipui ma totigilima talafeagai.
S23 – Aua le mānavaina le ausa.
UN ID 2206
WGK Siamani 1
RTECS NQ9350000
TSCA Ioe
HS Code 29291090
Mata'utia Fa'amatalaga Oona/A'a/Lachrymatory/Susū ma'ale'ale
Vasega o Tulaga Lamatia 6.1
Fa'aputuga Vaega II
Oona LD50 tuugutu ile Lapiti: > 5000 mg/kg LD50 dermal Lapiti > 9000 mg/kg

 

Folasaga

Diphenylmethane-4,4′-diisocyanate, e taʻua foi o le MDI. O se mea fa'aolaola ma o se ituaiga o fa'aputuga benzodiisocyanate.

 

Tulaga lelei:

1. Fa'aaliga: MDI e leai se lanu po'o le lanu samasama mumu.

2. Solubility: MDI e solu i solu fa'aola pei ole chlorinated hydrocarbons ma hydrocarbons manogi.

 

Fa'aaogā:

E faʻaaogaina e avea o se mea mataʻutia mo faʻapipiʻi polyurethane. E mafai ona tali atu i polyether po'o polyurethane polyols e fausia ai polyurethane elastomers po'o polymers. O lenei mea e iai le tele o faʻaoga i le fausiaina, taʻavale, meafale, ma seevae, ma isi.

 

Metotia:

O le metotia o le diphenylmethane-4,4′-diisocyanate e masani lava ona tali atu i le aniline ma le isocyanate e maua ai le isocyanate e faʻavae i le aniline, ona alu ai lea i le diazotization reaction ma le denitrification e maua ai le oloa faʻatatau.

 

Fa'amatalaga Saogalemu:

1. Aloese mai le fa'afeso'ota'i: 'Alo'ese le pa'i sa'o o le pa'u ma fa'aauupegaina mea e puipui ai le tagata lava ia e pei o totigilima, mata tioata ma lavalava puipui.

2. Ventilation: Tausia tulaga lelei ea i le taimi o le taotoga.

3. Teuina: Pe a teuina, e tatau ona faʻamaufaʻailogaina ma faʻamama ese mai faʻapogai afi, mea vevela ma nofoaga e tupu ai faʻapogai.

4. Lafoaia o otaota: E tatau ona togafitia lelei ma lafoai otaota, ma e le tatau ona lafoai i le loto.

I le tagofiaina o vailaʻau, e tatau ona faʻatautaia e tusa ai ma le faʻaogaina o suʻesuʻega faʻataʻitaʻiga ma taʻiala saogalemu, ma ia tusa ai ma tulafono ma tulafono faatonutonu talafeagai.

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