Dimethyl isocyanurate

Physicochemical Reactions with MIC MIC can interact with a large number of molecules as well as with itself Indeed, 21 identified (Varadarajan et al., 1985) and almost ten unidentified chemicals (Sriramachari, 2004) were detected in the culprit MIC Tank E-610. An MIC trimer as well as other metabolites of MIC such as dimethyl isocyanurate and 2,4-dione of methyl isocyanate were identified in autopsy samples from Bhopal victims (Chandra et al, 1991, 1994 Saraf et al, 1995). Reaction of MIC with water is important because this will occur whenever MIC comes into contact with a body or environment, as happened in Bhopal. It is important to note that while excess water can neutralize MIC, a small quantity of water is sufficient to generate heat during the reaction, which would lead to vaporization of MIC, as actually happened in Bhopal. Some important interactions of MIC are enumerated below ... 

The avadabihty of PMDI also led to the development of polyurethane-modified isocyanurate (PUIR) foams by 1967. The PUIR foams have superior thermal stabiUty and combustibiUty characteristics, which extend the use temperature of insulation foams well above 150°C. The PUIR foams are used in pipe, vessel, and solar panel insulation glass-fiber-reinforced PUIR roofing panels having superior dimensional stabiUty have also been developed. More recently, inexpensive polyester polyols based on residues obtained in the production of dimethyl terephthalate (DMT) have been used in the formulation of rigid polyurethane and PUIR foams. 

Trimethyl isocyanurate [827-16-7] can be synthesized in 60% yield by the reaction of CA with dimethyl sulfate in alkaline medium (13) or with diazomethane (63) and in essentially quantitative yield by thermal rearrangement of trimethyl cyanurate [877-89-4]. Isomerization of alkyl cyanurates to the corresponding isocyanurates is frequendy observed (11,64). 

Ci9H25N3012 3,5-Dimethyl-l-(2,3,4,6-tetra-0-acetyl-a-D-mannopyranosyl) isocyanuric acid TAMCUR 38 472... 

Triazine-2,4,6 (1H,3FI,5H)-trione, 1,3,5-tris [[3,5-bis (1,1-dimethyl-ethyl)-4-hydroxyphenyl] methyl]. See Tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate... 

Chlorotetramethyl-guanidine N-Halogenimides N-Halogenosuccinimide N ChlorO , N-Bromo-, N-Iodosuccinimide Bromophthalimide Chloramin-T 2-Chloro-3,4-dimethyl-indolenine 1,3-Dibromo 5,5-di-methylhydantoin, 1,3-Diiodo-N, N -Dichlorobarbital Cyanuric chloride Isocyanuric chloride Dibromo-isocyanuric acid, Trichloro-1 -Chlorobenzotriazole D imethy Ihalogeno-formiminium chloride... 

Acetodiphosphonic acid. See Etidronic acid Acetoglycerides. See Acetylated mono- and diglycerides of fatty acids Acetoin. See Acetyl methyl carbinol AcetomerTGIC. SeeTriglycidyl isocyanurate Acetomethoxan Acetomethoxane. See 6-Acetoxy-2,4-dimethyl-m-dioxane 1-Acetonaphthalene. See Methyl a-naphthyl ketone... 

Synonyms Monosodium cyanurate Sodium isocyanurate 1,3,5-Triazine-2,4,6(1 H,3H,5H)-trione, monosodium salt s-Triazine-2,4,6(1H,3H,5H)-trione, monosodium salt Classification Isocyanuric acid salt Empirical C3H3N3O3 Na Properties Colorless powd. sol. < 1 g/100 g in water insol. in ethanol, acetone, dimethyl sulfoxide m.w. 152.08 m.p. > 300 C Toxicology LD50 (IV, cat) 2144 mg/kg LDLo (oral, rat) > 7500 m kg mod. toxic by IV route si. toxic by ing. ing. may cause some irritation of mouth, throat, esophagus, and stomach inh. of dust or cone, mists may cause some nose/throat irritation may cause si. skin and eye irritation TSCA listed Hazardous Decomp. Prods. If burned or strongly heated, may give off isocyanic acid, hydrogen cyanide, NOx, and CO... 

Trimerization. Phenyl isocyanate allowed to stand at room temp, in the presence of tri-n-butylantimony oxide in a stoppered flask with occasional swirling until after ca. 1 hr. the mixture is completely solid phenyl isocyanurate. Y 94%, F. e., also with triisobutylarsenic oxide, and in solvents such as heptane or dimethyl sulfoxide, s. S. Herbstman, J. Org. Ghem. 30, 1259 (1965) f. catalysts cf. B. D. Beitchman, Ind. Eng. Ghem., Prod. Res. Develop. 5, 35 (1966). 

Chloramin-T Chloranil, o-Chloranil 2-Chloro-3,A-dimethyl-indolenine Cyanuric chloride Isocyanuric chloride N-Phenyltrimethyl-acetimidoyl chloride COCI2 and its dipyridinium salt CHsCOHal RCOCl, CHsCOCl, CH COBr, CClsCOCl (C0Cl)2... 

Tris(4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl) isocyanurate... 

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