解畅的回答：化学品MDI是二苯甲烷二异氰酸酯。
MDI是由异氰酸酯与多元醇及其配合助剂合成的聚氨酯材料，为白色至淡黄色熔触固体。
广泛应用于聚氨酯弹性体，制造合成纤维、人造革、无溶剂涂料等聚氨酯材料的生产领域。
作为合成聚氨酯材料的主要原料一异氰酸酯，于20世纪30年代末，由德国化学家o．Bayer及其同事首次开发出二异氰酸酯的合成方法及加工工艺。
泄漏处置：撒离危险区域，向专家咨询，将溢漏物清扫装入容器，小心收集残余物，然后转移到安全场所。
扈忠汉的回答：化学品MDI是二苯甲烷二异氰酸酯。
MDI是由异氰酸酯与多元醇及其配合助剂合成的聚氨酯材料，为白色至淡黄色熔触固体。
广泛应用于聚氨酯弹性体，制造合成纤维、人造革、无溶剂涂料等聚氨酯材料的生产领域。
作为合成聚氨酯材料的主要原料一异氰酸酯，于20世纪30年代末，由德国化学家o．Bayer及其同事首次开发出二异氰酸酯的合成方法及加工工艺。
泄漏处置：撒离危险区域，向专家咨询，将溢漏物清扫装入容器，小心收集残余物，然后转移到安全场所。
Decadent的回答：毒鼠强等5种禁用剧毒化学品任何人,任何情况下禁止做,不能做,不许做,不许买，不许卖，不许存,不许用 ,否则要触犯刑法125条第二款. mdi,tdi,三氯氧磷,红矾钠等 是其他一般剧毒化学品.按危险化学品管理条例，生产要许可证，使用要备案,规定做,限制做, 限制买，限制卖，限制存,限制用,否则触犯危险化学品管理条例,要限期整改,拒不整改的要按行政处罚法,罚款. 中华人民共和国最高人民法院祝二军处长博士"<<关于办理非法制造、买卖、运输、储存毒鼠强等禁用剧毒化学品刑事案件具体应用法律若干问题的解释>的理解与适用> 道出了立法的本意.但下面公安部门把335种剧毒化学品,如生产大量用的液氯 三氯氧磷 红矾钠 tdi等化工原料偶尔触犯危化管理条例的都往刑法125条第二款套,先来一个取保候审.冤屈,影响生产不说,浪费司法资源呀!! en **** material safety data sheet **** tolylene-2,4-diisocyanate, tech., 80% **** section 1 - chemical product and company identification **** msds name: tolylene-2,4-diisocyanate, tech., 80% catalog numbers: 20250-0000, 20250-0010, 20250-2500 synonyms: 4-methyl-1,3-phenylene diisocyanate; tdi company identification (europe): acros organics bvba janssen pharmaceuticalaan 3a 2440 geel, belgium company identification (usa): acros organics one reagent lane fairlawn, nj 07410 for information in north america, call: 800-acros-01 for information in europe, call: 0032(0) 14575211 for emergencies in the us, call chemtrec: 800-424-9300 for emergencies in europe, call: 0032(0) 14575299 **** section 2 - composition, information on ingredients **** +----------------+--------------------------------------+----------+-----------+-----------+---------------+ | cas# | chemical name | % | einecs# |haz symbols| risk phrases | |----------------|--------------------------------------|----------|-----------|-----------|---------------+ | 584-84-9 |tolylene-2,4-diisocyanate | tech., 8 | 209-544-5 ||| +----------------+--------------------------------------+----------+-----------+-----------+---------------+ hazard symbols: t+ risk phrases: 26 36/37/38 40 42/43 **** section 3 - hazards identification **** emergency overview very toxic by inhalation. irritating to eyes, respiratory system and skin. limited evidence of a carcinogenic effect. may cause sensitization by inhalation and skin contact. harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.moisture sensitive. potential health effects eye: causes severe eye irritation. lachrymator (substance which increases the flow of tears). skin: causes severe skin irritation. may be harmful if absorbed through the skin. may cause sensitization by skin contact. ingestion: may cause irritation of the digestive tract. may be harmful if swallowed. inhalation: causes respiratory tract irritation. may cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. toxic if inhaled. chronic: repeated exposure may cause allergic respiratory reaction (asthma). may cause allergic skin reaction in some individuals. limited evidence of a carcinogenic effect. **** section 4 - first aid measures **** eyes: immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. get medical aid immediately. skin: get medical aid immediately. immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. ingestion: get medical aid immediately. wash mouth out with water. inhalation: get medical aid immediately. remove from exposure and move to fresh air immediately. if not breathing, give artificial respiration. if breathing is difficult, give oxygen. notes to physician: **** section 5 - fire fighting measures **** general information: as in any fire, wear a self-contained breathing apparatus in pressure-demand, msha/niosh (approved or equivalent), and full protective gear. extinguishing media: use water spray, dry chemical, carbon dioxide, or chemical foam. **** section 6 - accidental release measures **** general information: use proper personal protective equipment as indicated in section 8. spills/leaks: absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. **** section 7 - handling and storage **** handling: do not breathe dust, vapor, mist, or gas. do not get in eyes, on skin, or on clothing. use only in a chemical fume hood. storage: store in a tightly closed container. store in a dry area. keep refrigerated. (store below 4°c/39°f.) store under nitrogen. **** section 8 - exposure controls, personal protection **** engineering controls: facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. personal protective equipment eyes: wear chemical goggles. skin: wear appropriate protective gloves to prevent skin exposure. clothing: wear appropriate protective clothing to prevent skin exposure. respirators: follow the osha respirator regulations found in 29 cfr 1910.134 or european standard en 149. always use a niosh or european standard en 149 approved respirator when necessary. **** section 9 - physical and chemical properties **** physical state: clear liquid color: colorless to light yellow odor: not available. ph: not available. vapor pressure: 0.04 mbar @ 20 deg c viscosity: not available. boiling point: 115 - 120 deg c @ 10mmhg freezing/melting point: 12.5 - 13.5 deg c autoignition temperature: > 620 deg c (> 1,148.00 deg f) flash point: 127 deg c ( 260.60 deg f) explosion limits, lower: 0.9 vol % explosion limits, upper: 9.5 vol % decomposition temperature: solubility in water: reacts. specific gravity/density: 1.220 molecular formula: c9h6n2o2 molecular weight: 174.16 **** section 10 - stability and reactivity **** chemical stability: not available. conditions to avoid: high temperatures, incompatible materials, exposure to moist air or water. incompatibilities with other materials: strong oxidizing agents, acids, strong bases, alcohols, amines. hazardous decomposition products: hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide. hazardous polymerization: will not occur. **** section 11 - toxicological information **** rtecs#: cas# 584-84-9: cz6300000 ld50/lc50: cas# 584-84-9: draize test, rabbit, eye: 100 mg severe; draize test, rabbit, skin: 500 mg/24h moderate; inhalation, mouse: lc50 = 10 ppm/4h; inhalation, rabbit: lc50 = 11 ppm/4h; inhalation, rat: lc50 = 14 ppm/4h; oral, rat: ld50 = 5800 mg/kg; skin, rabbit: ld50 = >16 ml/kg. not available. carcinogenicity: tolylene-2,4-diisocyanate - niosh: potential occupational carcinogen see actual entry in rtecs for complete information. **** section 12 - ecological information **** ecotoxicity: fish: fathead minnow: lc50: 164 mg/l; 24h; . **** section 13 - disposal considerations **** dispose of in a manner consistent with federal, state, and local regulations. **** section 14 - transport information **** iata shipping name: toluene diisocyanate hazard class: 6.1 un number: 2078 packing group: ii imo shipping name: toluene diisocyanate hazard class: 6.1 un number: 2078 packing group: ii rid/adr shipping name: toluene diisocyanate hazard class: 6.1 un number: 2078 packing group: ii usa rq:cas# 584-84-9: 100 lb final rq (listed under toluene diisocyanate); 45.4 kg final rq (listed un **** section 15 - regulatory information **** european/international regulations european labeling in accordance with ec directives hazard symbols: t+ risk phrases: r 26 very toxic by inhalation. r 36/37/38 irritating to eyes, respiratory system and skin. r 40 limited evidence of a carcinogenic effect. r 42/43 may cause sensitization by inhalation and skin contact. r 52/53 harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. safety phrases: s 23 do not inhale gas/fumes/vapour/spray. s 36/37 wear suitable protective clothing and gloves. s 45 in case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). s 61 avoid release to the environment. refer to special instructions/safety data sheets. wgk (water danger/protection) cas# 584-84-9: 2 united kingdom occupational exposure limits united kingdom maximum exposure limits canada cas# 584-84-9 is listed on canada's dsl list. cas# 584-84-9 is listed on canada's ingredient disclosure list. exposure limits cas# 584-84-9: oel-arab republic of egypt:twa 0.02 ppm (0.14 mg/m3) oel-belgium:twa 0.005 ppm (0.036 mg/m3);stel 0.02 ppm oel-czechoslovakia:twa 0.07 mg/m3;stel 0.14 mg/m3 oel-denmark:twa 0.005 ppm (0.035 mg/m3);carcinoge oel-france:twa 0.01 ppm (0.08 mg/m3);stel 0.02 pp (0.16 mg/m3) oel-germany:twa 0.01 ppm (0.07 mg/m3) oel-hungary:stel 0.04 mg/m3 oel-japan:twa 0.02 ppm (0.14 mg/m3) oel-the netherlands:twa 0.02 ppm (0.14 mg/m3);ski oel-the philippines:twa 0.02 ppm (0.14 mg/m3) oel-russia:stel 0.05 mg/m3 oel-sweden:twa 0.005 ppm (0.04 mg/m3);stel 0.01 ppm (0.07 mg/m3) oel-switzerland:twa 0.005 ppm (0.04 mg/m3);stel 0.01 ppm oel-thailand:twa 0.02 ppm (0.14 mg/m3) oel-turkey:twa 0.02 ppm (0.14 mg/m3) oel-united kingdom:twa 0.02 mg/m3;stel 0.07 mg/m3 oel in bulgaria, colombia, jordan, korea check acgih tlv oel in new zealand, singapore, vietnam check acgi tlv us federal tsca cas# 584-84-9 is listed on the tsca inventory. **** section 16 - additional information **** msds creation date: 7/16/1996 revision #1 date: 8/05/2002 the information above is believed to be accurate and represents the best information currently available to us. however, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. users should make their own investigations to determine the suitability of the information for their particular purposes. in no way shall the company be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if the company has been advised of the possibility of such damages. -------------------------------------------------------------------------------- 康果的回答：化学品MDI是二苯基甲烷二异氰酸酯
MDI二苯基甲烷二异氰酸酯由异氰酸酯与多元醇及其配合助剂合成的聚氨酯材料，以其优异的性能、繁多的品种、广阔的用途，在众多的合成材料中独树一帜，成为当今发展速度最快的材料之一。作为合成聚氨酯材料的主要原料一异氰酸酯，于20世纪30年代末，由德国化学家o．Bayer及其同事首次开发出二异氰酸酯的合成方法及加工工艺。
胡钢的回答：它是生产聚氨酯的主要原料，在我们日常生活中随处可见。 例如建筑外墙的保温层、汽车的仪表盘和飞机机舱的座椅，甚至“神舟五号”飞船的密封件， 都是以MDI为主要原料的，用途非常广泛。 二苯基甲烷二异氰酸酯（MDI）（芳香族） 纯MDI在常温下为白色或微黄色固体，加热时有刺激性臭味， 熔点≥38℃，沸点194~199℃/5mmHg，密度：1.19。 分子式：C15H10N2O2；分子量：250 |
扩展资料
安全注意事项
MDI存在一定毒性，可导致中度眼睛刺激和轻微的皮肤刺激，可造成皮肤过敏。 MDI在空气中最大允许浓度（TLV）为0.02ppm。
但必须注意的是，当物料温度被加热到40℃以上时（如熔化时）或是工作环境通风不良，将会增加其蒸气毒害性。
另外采用喷涂工艺施工作业的场所，会导致空气中悬浮粒子浓度增加而产生毒害。在类似环境中作业应佩戴防毒面具和呼吸器，否则，反复吸入超标浓度的蒸气会引起呼吸道过敏。
即使在正常条件下，由于 MDI活泼的化学性质， 在操作时应小心谨慎。
储存方法
贮存于阴凉、通风的库房内，远离火种、热源。长期贮存，库温不宜超过20℃。严格防水、防潮，避免日光直射。
参考资料来源：百度百科--二苯甲烷二异氰酸酯
参考资料来源：百度百科--MDI
扩展资料：
物理性质：
纯MDI：常温下为白色到微黄色晶体，储藏温度为5度以下，保质期为三个月，包装一般为250公斤铁桶充氮包装（槽车充氮为10天保质期）。
聚合MDI：棕褐色透明液体，常温保存，保质期两年，包装一般为250公斤铁桶充氮包装。
现有技术：全球流行的MDI生产方法基本是以苯胺为原料，经光气法以后再还原形成粗品的MDI产品，再经分馏装置，分离出纯MDI和聚合MDI。
