asia_oju-iwe

ọja

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

Ohun-ini Kemikali:

Ilana molikula C15H10N2O2
Molar Mass 250.25
iwuwo 1.19
Ojuami Iyo 38-44 °C
Boling Point 392 °C
Oju filaṣi 196 °C
Omi Solubility decomposes
Solubility 2g/l (ibajẹ)
Vapor Presure 0.066 hPa (20 °C)
Ifarahan afinju
Specific Walẹ 1.180
Àwọ̀ Funfun to Fere funfun
Ifilelẹ Ifarahan TLV-TWA 0.051 mg/m3 (0.005 ppm) (ACGIH ati NIOSH); aja (afẹfẹ) 0.204mg / m3 (0.02 ppm) / 10 min (NIOSH ati OSHA); IDLH 102 mg/m3 (10 ppm).
BRN 797662
Ibi ipamọ Ipo -20°C
Iduroṣinṣin Idurosinsin. Ijona. Ibamu pẹlu awọn aṣoju oxidizing lagbara. Reacts agbara pẹlu alcohols.
Ni imọlara Ọrinrin Sensitive/Lachrymatory
ibẹjadi iye to 0.4% (V)
Atọka Refractive 1.5906 (iṣiro)
Ti ara ati Kemikali Properties Iwa naa jẹ didà ofeefee ofeefee kan ti o lagbara pẹlu oorun didan ti o lagbara.
farabale ojuami 196 ℃
didi ojuami 37 ℃
iwuwo ojulumo 1.1907
tiotuka ninu acetone, benzene, kerosene, nitrobenzene.flash point: 200-218

itọka ifura: 1.5906

Lo Ti a lo ninu awọn pilasitik ati awọn ile-iṣẹ roba ati bi alemora

Alaye ọja

ọja Tags

Awọn koodu ewu R42/43 – Le fa ifamọ nipasẹ ifasimu ati olubasọrọ ara.
R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara.
R20 - Ipalara nipasẹ ifasimu
R48/20 -
R40 - Ẹri to lopin ti ipa carcinogenic
Apejuwe Abo S45 – Ni ọran ti ijamba tabi ti o ba ni ailara, wa imọran iṣoogun lẹsẹkẹsẹ (fi aami han nigbakugba ti o ṣee ṣe.)
S36 / 37 - Wọ aṣọ aabo ati awọn ibọwọ to dara.
S23 – Maṣe simi oru.
UN ID 2206
WGK Germany 1
RTECS NQ9350000
TSCA Bẹẹni
HS koodu 29291090
Akọsilẹ ewu Majele ti / Ibajẹ / Lachrymatory / Ọrinrin Sensitive
Kíláàsì ewu 6.1
Iṣakojọpọ Ẹgbẹ II
Oloro LD50 ẹnu ni Ehoro:> 5000 mg/kg LD50 dermal Ehoro> 9000 mg/kg

 

Ifaara

Diphenylmethane-4,4'-diisocyanate, ti a tun mọ ni MDI. O jẹ ẹya Organic ati pe o jẹ iru awọn agbo ogun benzodiisocyanate.

 

Didara:

1. Irisi: MDI ko ni awọ tabi ina ofeefee to lagbara.

2. Solubility: MDI jẹ tiotuka ni awọn ohun elo ti o wa ni erupẹ gẹgẹbi awọn hydrocarbons chlorinated ati awọn hydrocarbons aromatic.

 

Lo:

O ti lo bi ohun elo aise fun awọn agbo ogun polyurethane. O le fesi pẹlu polyether tabi polyurethane polyols lati ṣe awọn polyurethane elastomers tabi awọn polima. Ohun elo yii ni ọpọlọpọ awọn ohun elo ni ikole, adaṣe, aga, ati bata bata, laarin awọn miiran.

 

Ọna:

Ọna ti diphenylmethane-4,4'-diisocyanate jẹ nipataki lati fesi aniline pẹlu isocyanate lati gba isocyanate ti o da lori aniline, ati lẹhinna lọ nipasẹ iṣesi diazotization ati denitrification lati gba ọja ibi-afẹde.

 

Alaye Abo:

1. Yago fun olubasọrọ: Yago fun ifarakan ara taara ati ni ipese pẹlu awọn ohun elo aabo ti ara ẹni ti o yẹ gẹgẹbi awọn ibọwọ, awọn goggles ati aṣọ aabo.

2. Fentilesonu: Ṣe abojuto awọn ipo atẹgun ti o dara nigba iṣẹ.

3. Ibi ipamọ: Nigbati o ba wa ni ipamọ, o yẹ ki o wa ni edidi ati ki o wa ni ipamọ lati awọn orisun ina, awọn orisun ooru ati awọn ibi ti awọn orisun ina ti waye.

4. Idoti isọnu: Egbin yẹ ki o tọju daradara ki o si sọ ọ nù, ati pe ko yẹ ki o da silẹ ni ifẹ.

Nigbati o ba n mu awọn nkan kemika mu, wọn yẹ ki o mu ni ibamu pẹlu awọn ilana ṣiṣe ti yàrá ati awọn itọnisọna ailewu, ati ni ibamu pẹlu awọn ofin ati ilana ti o yẹ.


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