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4,4′-Diphenylmethane disocyanate(CAS#101-68-8) Setšoantšo se Featured
  • 4,4′-Diphenylmethane disocyanate(CAS#101-68-8) 1

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

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C15H10N2O2
'Misa oa Molar 250.25
Botenya 1.19
Melting Point 38-44 °C
Boling Point 392 °C
Flash point 196 °C
Ho qhibiliha ha Metsi senya
Solubility 2g/l (ho senyeha)
Khatello ea Mouoane 0.066 hPa (20 °C)
Ponahalo makhethe
Matla a Khoheli a khethehileng 1.180
Mmala Bosoeu ho isa ho Ho batla ho tšoeu
Moedi wa ho pepeseha TLV-TWA 0.051 mg/m3 (0.005 ppm)(ACGIH le NIOSH); siling (moea) 0.204mg/m3 (0.02 ppm)/10 min (NIOSH leOSHA); IDLH 102 mg/m3 (10 ppm).
BRN 797662
Boemo ba polokelo -20°C
Botsitso E tsitsitseng. E tukang. Ha e lumellane le lisebelisoa tse matla tsa oxidizing. E sebetsa ka matla le tai.
E hloahloa Mongobo o Sensiti/Lachrymatory
Qeto ea ho phatloha 0.4%(V)
Refractive Index 1.5906 (khakanyo)
Thepa ea 'Mele le ea Lik'hemik'hale Tšobotsi ke 'mala o mosehla o qhibilihisitsoeng o nang le monko o matla o hlabang.
ntlha e belang 196 ℃
ntlha ea leqhoa 37 ℃
letsoalo le amanang le 1.1907
qhibilihang ka har'a acetone, benzene, parafine, nitrobenzene.flash point: 200-218

index ea refractive: 1.5906
Sebelisa E sebelisoa liindastering tsa polasetiki le rabara le joalo ka sekhomaretsi

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R42/43 – E ka baka maikutlo a matla ka ho hema le ho ama letlalo.
R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo.
R20 – E kotsi ka ho hema
R48/20 -
R40 - Bopaki bo fokolang ba phello ea kankere
Tlhaloso ea Tšireletseho S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.)
S36/37 - Apara liaparo tse loketseng tsa tšireletso le liatlana.
S23 - Se ke oa hema mouoane.
Li-ID tsa UN 2206
WGK Jeremane 1
RTECS NQ9350000
TSCA Ee
Khoutu ea HS 29291090
Tsebiso ea Kotsi Chefo/Corrosive/Lachrymatory/Mongobo e Sensing
Sehlopha sa Likotsi 6.1
Sehlopha sa ho paka II
Chefo LD50 ka molomo ho Mmutla: > 5000 mg/kg LD50 dermal Rabbit > 9000 mg/kg

 

Selelekela

Diphenylmethane-4,4'-disocyanate, e tsejoang hape e le MDI. Ke motsoako oa tlhaho 'me ke mofuta oa metsoako ea benzodisocyanate.

 

Boleng:

1. Ponahalo: MDI ha e na 'mala kapa e bosehla bo bobebe bo tiileng.

2. Ho qhibiliha: MDI e qhibiliha ka har'a metsoako ea tlhaho e kang li-hydrocarbon tse chlorine le li-hydrocarbon tse nkhang hamonate.

 

Sebelisa:

E sebelisoa e le thepa e tala bakeng sa metsoako ea polyurethane. E ka sebetsana le polyether kapa polyurethane polyols ho etsa polyurethane elastomers kapa polymers. Sesebediswa sena se na le mefuta e mengata ea ts'ebeliso ea kaho, likoloi, thepa ea ka tlung le lieta, har'a tse ling.

 

Mokhoa:

Mokhoa oa diphenylmethane-4,4'-disocyanate ke haholo-holo ho itšoara ka aniline ka isocyanate ho fumana isocyanate e thehiloeng ho aniline, ebe o feta ka diazotization reaction le denitrification ho fumana sehlahisoa se lebisitsoeng.

 

Lintlha tsa Tšireletseho:

1. Qoba ho kopana: Qoba ho ama letlalo ka ho toba 'me u be le lisebelisoa tse loketseng tsa ho itšireletsa tse kang liatlana, likhalase le liaparo tsa tšireletso.

2. Ventilation: Boloka maemo a matle a moea nakong ea ts'ebetso.

3. Polokelo: Ha e bolokoa, e lokela ho koaloa 'me e behole le mehloli ea mollo, mehloli ea mocheso le libaka tseo mehloli ea ho tima e hlahang ho tsona.

4. Tlhōlo ea litšila: Litšila li lokela ho tšoaroa hantle le ho lahloa, ’me ha lia lokela ho lahleloa ka boithatelo.

Ha u sebetsana le lintho tsa lik'hemik'hale, li lokela ho sebetsoa ka thata ho latela mekhoa ea ts'ebetso ea laboratori le tataiso ea polokeho, le ho latela melao le melaoana e amehang.

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