Introduction：Basic information about CAS 75-28-5|Isobutane Residual Solvent Standard, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | Isobutane Residual Solvent Standard |
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| CAS Number | 75-28-5 | Molecular Weight | 58.122 |
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| Density | 0.6±0.1 g/cm3 | Boiling Point | -10.5±3.0 °C at 760 mmHg |
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| Molecular Formula | C4H10 | Melting Point | −160 °C(lit.) |
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| MSDS | / | Flash Point | -71.5±10.3 °C |
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Names
| Name | isobutane |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 0.6±0.1 g/cm3 |
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| Boiling Point | -10.5±3.0 °C at 760 mmHg |
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| Melting Point | −160 °C(lit.) |
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| Molecular Formula | C4H10 |
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| Molecular Weight | 58.122 |
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| Flash Point | -71.5±10.3 °C |
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| Exact Mass | 58.078251 |
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| LogP | 2.70 |
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| Vapour density | 2.01 (21 °C, vs air) |
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| Vapour Pressure | 2575.1±0.0 mmHg at 25°C |
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| Index of Refraction | 1.352 |
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| InChIKey | NNPPMTNAJDCUHE-UHFFFAOYSA-N |
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| SMILES | CC(C)C |
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| Stability | Stable. Extremely flammable. May form explosive mixtures with air. |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- TZ4300000
- CHEMICAL NAME :
- Propane, 2-methyl-
- CAS REGISTRY NUMBER :
- 75-28-5
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 13
- MOLECULAR FORMULA :
- C4-H10
- MOLECULAR WEIGHT :
- 58.14
- WISWESSER LINE NOTATION :
- 1Y1&1
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 57 pph/15M
- TOXIC EFFECTS :
- Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory depression
- REFERENCE :
- HUTODJ Human Toxicology. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants., RG 21 2XS, UK) V.1- 1981- Volume(issue)/page/year: 1,239,1982
- TYPE OF TEST :
- LCLo - Lowest published lethal concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1041 gm/m3/2H
- TOXIC EFFECTS :
- Behavioral - excitement
- REFERENCE :
- JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 58,74,1936 *** REVIEWS *** TOXICOLOGY REVIEW FAZMAE Fortschritte der Arzneimittelforschung. Progress in Drug Research. (Birkhauser Boston, Inc., c/o Springer-Verlag New York, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1959- Volume(issue)/page/year: 18,365,1974 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-GERMANY:TWA 1000 ppm (2350 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 600 ppm (1430 mg/m3);STEL 750 ppm JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81851 No. of Facilities: 118992 (estimated) No. of Industries: 360 No. of Occupations: 199 No. of Employees: 1193478 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81851 No. of Facilities: 110810 (estimated) No. of Industries: 377 No. of Occupations: 233 No. of Employees: 1795168 (estimated) No. of Female Employees: 556159 (estimated)
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Safety Information
| Hazard Codes | F+ |
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| Risk Phrases | R12 |
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| Safety Phrases | S9-S16 |
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| RIDADR | UN 1969 2.1 |
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| WGK Germany | - |
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| RTECS | TZ4300000 |
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| Hazard Class | 2.1 |
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| HS Code | 2901100000 |
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Customs
| HS Code | 2901100000 |
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| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
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Synonyms
| MFCD00008926 |
| ISOBUTANE |
| 2-Methylpropane |
| EINECS 200-857-2 |
