Polymethylene polyphenyl isocyanate
- Isocyanate 580
- Isonate 390p
- Kaiser nco 20
- Millionate mr
- Mirionate mr
- Mondur mr
Dark-brown liquid with a weak odor.
Source of pure diphenylmethane-4,4'-diisocyanate, used as a binder resin for particle board and as a foundry core binder resin.
Registry Numbers and Inventories.
EC Index Number
Tumorigen; Reproductive Effector; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Boiling point, °C
Decomposition point, °C
Vapor pressure, mmHg
1E-5 (20 C)
Vapor density (air=1)
1.20 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
D1A D2A D2B
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
20 ppm or less: a type c supplied-air respirator with a full facepiece operated in pressure-demand or other positive pressure mode or with a full facepiece, helmet, or hood operated in continuous-flow mode.
Greater than 20 ppm or entry and escape from unknown concentrations: self-contained breathing apparatus with a full facepiece operated in a pressure-demand or other positive pressure mode or a combination respirator which includes a type c supplied-air respirator with a full facepiece operated in pressure-demand or other positive pressure or continuous-flow mode and an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive pressure mode.
ELIMINATE all ignition sources and groumd all equipment used when handling the product. Do not touch spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. FOR CHLOROSILANES, use AFFF alcohol-resistant medium expansion foam to reduce vapors. DO NOT GET WATER on spilled substance or inside containers. Cover with DRY earth, DRY sand, or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean non-sparking tools to collect material and place it into loosley covered plastic containers for later disposal.
Stable at normal temperatures and pressures.
Strong bases, alcohols, metal compounds or surface active agents. Reacts with water slowly forming heavy scum and liberating carbon dioxide gas.
Wear self-contained breathing apparatus in addition to normal protective turnout clothing. Extinguish using water fog, foam, dry chemical or carbon dioxide.
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Containers may explode.
Fire will produce irritating, corrosive and/or toxic gases.
Nausea, vomiting and diarrhea are possible if ingested.
Cough, tachypnea, and wheezing are common after inhalation.
Redness, swelling and pain may occur.
Emesis is not indicated due to the irritant nature of these agents. Charcoal - not recommended; it may promote vomiting and make endoscopic evaluation difficult. Dilution: immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 4 ounces/120 ml in a child). Neutralization - neutralization is not indicated. Although these agents are irritants, and therefore should not produce tissue damage, it is almost impossible to assure that a particular substance under a particular set of circumstances would not cause damage. Therefore, each patient should be examined with the idea that mucous membrane damage might have occurred.
Remove victim to fresh air; give artificial respiration if breathing has stopped; oxygen can be given by qualified personnel.
Flush immediately with water, wipe off, treat with 30% isopropyl alcohol (rubbing alcohol), and wash with soap and water.
Immediately wash with large amounts of water for at least 15 min.