| CUMENE | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 98-82-8 |
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| EINECS NO. | 202-704-5 | |
| FORMULA | C6H5CH(CH3)2 | |
| MOL WT. | 120.19 | |
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H.S. CODE |
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| TOXICITY | Oral rat LD50: 1400 mg/kg | |
| SYNONYMS | 1-Methylethyl benzene; Isopropylbenzene; Cumeno; Cumène; | |
| 2-Phenylpropane; Cumol; Methyl ethyl benzene; | ||
| DERIVATION |
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE | clear liquid | |
| MELTING POINT | -96 C | |
| BOILING POINT | 152 - 154 C | |
| SPECIFIC GRAVITY | 0.86 | |
| SOLUBILITY IN WATER |
Insoluble |
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| pH | 6 - 7 | |
| VAPOR DENSITY | 4.1 | |
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AUTOIGNITION |
420 C |
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NFPA RATINGS |
Health: 2; Flammability: 3; Reactivity: 1 | |
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REFRACTIVE INDEX |
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| FLASH POINT | 31 C | |
| STABILITY | Stable under ordinary conditions. Hygroscopic. | |
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APPLICATIONS |
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| Cumene (isopropylbenzene) is a volatile, clear liquid at room temperature with a characteristic aromatic odor. It is insoluble in water but is soluble in nonpolar solvents including alcohol and ether. Cumene belongs to a member of simple alkyl aromatic hydrocarbons. It has an isopropyl substituent attached to benzene ring. Cumene is the parent material in the production of phenol and its co-product acetone. The by-products, alpha-methyl styrene abd acetophenone are produced during cumene process. Cumen is present in coal tar and petrolium. But most commerical cumene is symthesized from relatively inexpensive two basic materials, benzene and propene. Almost all comene is used for captive use to produce phenol and acetone. Cumene hydroperoxide, the intermediate druing cumene process, is commercially available. Cumene hydroperoxide is a colorless to pale yellow liquid chemical used as a polymerization inhibitor particularly in redox systems and to manufacture organic peroxides, primarily dicumylperoxide, which are used in the manufacture of plastic resins and as initiators in chemical reactions. It is a strong free radical source containing more than 8.5% of active oxygen. The half-life temperatures are 158 C (for 10 hours), 190 C (1 for 1 hour) and 260 C (for 1 minute). It decomposes rapidly, causing fire and explosion hazard, on heating and under influence of light. It reacts violently with incompatible substances or ignition sources (acids, bases, reducing agents, and heavy metals). It should be stored in a dry and refrigerated (< 27C recommended or 38 C max) area and to keep away from reducing agents and incompatible substances. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
clear liquid | |
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CONTENT |
99.9% min |
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IMPURITY |
0.1% max |
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COLOR, APHA |
15 max |
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BROMINE INDEX |
100max |
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TRANSPORTATION |
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| PACKING | ||
| HAZARD CLASS | 3 (Packing group: III) | |
| UN NO. | 1928 | |
| OTHER INFORMATION | ||
| Hazard Symbols: XN N, Risk Phrases: 10-37-51/53-65, Safety Phrases: 24-37-61-62 | ||
