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4,4′-Diphenylmethane diisocyanate(CAS#101-68-8) Atahanga Whakaatu
  • 4,4′-Diphenylmethane diisocyanate(CAS#101-68-8) 1

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

Āhuatanga matū:

Tātai rāpoi C15H10N2O2
Molar Mass 250.25
Kiato 1.19
Te Whakarewa 38-44 °C
Piro Pouri 392 °C
Tohu Kohiko 196 °C
Wairewa wai pirau
Wairewa 2g/l (parohanga)
Kohu Kohu 0.066 hPa (20 °C)
Te ahua matika
Te Kaha Tauwhāiti 1.180
Tae Mā ki Tata mā
Tepe Whakaaturanga TLV-TWA 0.051 mg/m3 (0.005 ppm)(ACGIH and NIOSH); tuanui (rangi) 0.204mg/m3 (0.02 ppm)/10 min (NIOSH meOSHA); IDLH 102 mg/m3 (10 ppm).
BRN 797662
Tikanga Rokiroki -20°C
Te pumau Eu ana. Ka mura. He hotokore ki te kaha o te waiora. Ka kaha te urupare ki te waipiro.
Tairongo Makuku Tairongo/Lachrymatory
Tepe Pahū 0.4%(V)
Taurangi Refactive 1.5906 (whakatau tata)
Āhuatanga ā-tinana, matū hoki Ko te ahua ko te kowhai kowhai kowhai totoka whakarewa me te kaha whakapouri.
ira kohua 196 ℃
ira mīti 37 ℃
kiato whanaunga 1.1907
wairewa i roto i te acetone, benzene, kerosene, nitrobenzene.flash point: 200-218

taupū mataaro: 1.5906
Whakamahi Ka whakamahia i roto i nga ahumahi kirihou me te rapa me te whakapiri

Taipitopito Hua

Tohu Hua

Waehere Morearea R42/43 – Ka whakaparahako pea na roto i te ngongo me te pa ki te kiri.
R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri.
R20 – He kino ma te whakangohanga
R48/20 -
R40 – Nga taunakitanga iti o te paanga mate pukupuku
Whakaahuatanga Haumaru S45 – Ki te puta he aitua, ki te kore ranei koe e pai, rapu wawe i nga tohutohu hauora (whakaatuhia te tapanga ina taea.)
S36/37 – Mau kakahu whakamarumaru me nga karapu tika.
S23 – Kaua e hau kohu.
UN ID 2206
WGK Tiamana 1
RTECS NQ9350000
TSCA Ae
Waehere HS 29291090
Tuhipoka morearea Toxic/Corrosive/Lachrymatory/Makuku Tairongo
Te akomanga morearea 6.1
Roopu Tarapi II
Te paitini LD50 ā-waha i roto i te Rapeti: > 5000 mg/kg LD50 dermal Rabbit > 9000 mg/kg

 

Kupu Whakataki

Diphenylmethane-4,4′-diisocyanate, e mohiotia ana ko MDI. He pūhui waro, he momo pūhui benzodiisocyanate.

 

Kounga:

1. Te ahua: Ko te MDI he kore tae, he kowhai marama ranei te totoka.

2. Wairewa: MDI he wairewa i roto i nga whakarewa pararopi penei i te waiwaro maataa me te waiwaro kakara.

 

Whakamahia:

Ka whakamahia hei rauemi mata mo nga puhui polyurethane. Ka taea te tauhohe ki te polyether polyurethane polyols ranei ki te hanga i te polyurethane elastomers polymer ranei. He maha nga waahanga o tenei rauemi i roto i te hangahanga, te motuka, nga taonga, me nga hu, me etahi atu.

 

Tikanga:

Ko te tikanga o te diphenylmethane-4,4′-diisocyanate te nuinga ki te tauhohe i te aniline me te isocyanate ki te whiwhi i te isocyanate e pa ana ki te aniline, katahi ka haere i roto i te tauhohenga diazotization me te denitrification ki te whiwhi i te hua whaainga.

 

Mōhiohio Haumaru:

1. Kaua e pa atu: Kaua e pa atu ki te kiri, kia rite ki nga taputapu whakamarumaru whaiaro e tika ana penei i nga karapu, motiuri me nga kakahu whakamarumaru.

2. Ventilation: Kia mau tonu te pai o te hau i te wa e mahi ana.

3. Rokiroki: I te wa e rongoa ana, me hiri me te pupuri atu i nga puna ahi, nga puna wera me nga waahi ka puta mai nga puna ahi.

4. Te tuku para: Me tika te mahi me te tuku para, kia kaua e rukea i runga i te hiahia.

I te wa e whakahaere ana i nga matū matū, me whakahaere i runga i nga tikanga whakahaere taiwhanga me nga aratohu haumaru, me nga ture me nga ture e tika ana.

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