4,4′-Diphenylmethane diisocyanate(CAS#101-68-8)
| Nā Code Risk | R42/43 – Hiki ke hoʻoulu i ka naʻau ma ka inhalation a me ka pili ʻana i ka ʻili. R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. R20 – Poino ma ka inhalation R48/20 - R40 - Nā hōʻike liʻiliʻi o ka hopena carcinogenic |
| Ka wehewehe palekana | S45 – Inā loaʻa ka pōʻino a i ʻole ka maikaʻi ʻole, e ʻimi koke i ka ʻōlelo aʻo kino (e hōʻike i ka lepili inā hiki.) S36/37 – E hoʻohana i nā lole pale kūpono a me nā mīkina lima. S23 – Mai hanu i ka mahu. |
| UN ID | 2206 |
| WGK Kelemānia | 1 |
| RTECS | NQ9350000 |
| TSCA | ʻAe |
| HS Code | 29291090 |
| Nānā Hazard | ʻAʻohe / ʻAiʻi / Lachrymatory / Hoʻomaʻamaʻa |
| Papa Hazard | 6.1 |
| Hui Pūʻulu | II |
| Kaʻawaʻawa | LD50 ma ka waha ma ka Lapeti: > 5000 mg/kg LD50 dermal Rabbit > 9000 mg/kg |
Hoʻolauna
ʻO Diphenylmethane-4,4′-diisocyanate, i kapa ʻia ʻo MDI. He pūhui mea ola a he ʻano pūhui benzodiisocyanate.
ʻAno maikaʻi:
1. Nānā: ʻAʻole kala ʻole ʻo MDI a i ʻole māmā melemele paʻa.
2. Solubility: Hiki ke hoʻoheheʻe ʻia ka MDI i nā mea hoʻoheheʻe organik e like me ka hydrocarbons chlorinated a me nā hydrocarbons aromatic.
E hoʻohana:
Hoʻohana ʻia ia ma ke ʻano he mea maka no nā pūhui polyurethane. Hiki iā ia ke hana me ka polyether a i ʻole polyurethane polyols e hana i ka polyurethane elastomers a i ʻole polymers. Loaʻa i kēia ʻano mea hoʻohana i ke kūkulu ʻana, nā kaʻa, nā lako, a me nā kāmaʻa, a me nā mea ʻē aʻe.
Hanana:
ʻO keʻano o ka diphenylmethane-4,4′-diisocyanate ka mea nui e hana i ka aniline me ka isocyanate no ka loaʻaʻana o ka isocyanate ma muli o ka aniline, a laila e hele i ka hopena diazotization a me ka denitrification no ka loaʻaʻana o ka huahana.
ʻIke palekana:
1. Hōʻalo i ka hoʻopili ʻana: E hōʻalo i ka hoʻopili pololei ʻana i ka ʻili a hoʻolako ʻia me nā mea pale pilikino kūpono e like me nā mīkina lima, nā maka aniani a me nā lole pale.
2. Ventilation: E mālama i nā kūlana ea maikaʻi i ka wā o ka hana.
3. Ka mālama ʻana: I ka wā e mālama ai, pono e hoʻopaʻa ʻia a mālama ʻia mai nā kumu ahi, nā kumu wela a me nā wahi i loaʻa ai nā kumu hoʻā.
4. Holoi ʻōpala: Pono e mālama pono ʻia ka ʻōpala, a ʻaʻole pono e hoʻolei ʻia ma ka makemake.
I ka lawelawe ʻana i nā mea kemika, pono e mālama ʻia e like me nā kaʻina hana o ka lab a me nā alakaʻi palekana, a e like me nā kānāwai a me nā lula pili.
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