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Many ethers (such as diethyl ether) are highly and .
ENVIRONMENTAL LEVELS AND HUMAN EXPOSURE An industrial emmission study indicated that 207 tonnes of tert-butanol were released into the air in the Netherlands over a period of 1 year (Anon, 1983).
10 days (1979) Table 11 (contd) a Values from the literature were recalculated as necessary to yield dosages in terms of ppm, g or g/kg b 95% confidence limits c OCT = ornithine carbamyl transferase d Purpose of study was intercomparison of testing laboratories that evaluated MEK and other substances by purportedly identical methods e Not clear whether one eye or both eyes were dosed The results of studies on eye irritation in rabbits are inconsistent.
Ether synthesis by etherification (alkylation)
The two alkyl groups can be the same or different:The following are NOT examples of ethers because the oxygen atom is not connected to two different carbon atoms via single bonds or because the attached group is not an alkyl:Ether is also used as shorthand to refer to one of the most common ethers, diethyl ether, shown above.
Many ethers, particularly the crowns, are eye and skin and/or .Always read the MSDS before using an ether so you know what safety precautions to take.
tert-Butyl ethyl ether CAS 637-92-3 | 841873
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Ethylene Glycol Tert-Butylethyl Ether For Synthesis
STEL (average value, 4 x per shift) Hungary 200 (68) TWA (8 h) IRPTC (1987, 1991) 1000 (2950) STEL (30 min) Italy 590 (200) TWA Notified by country Japan 590 (200) TWA IRPTC (1987, 1991) Netherlands 590 (200) TWA a Sweden 150 (50) TWA IRPTC (1987, 1991) 300 (100) STEL (15 min) United Kingdom 590 (200) TWA (8 h), OES Notified by country 885 (300) STEL (10 min), OES USA (NIOSH/OSHA) 590 (200) TWA (10 h) US NIOSH (1990) 885 (300) STEL (15 min) 8850 (3000) IDLH USA (ACGIH) 590 (200) TLV (TWA) ACGIH (1991) 885 (300) STEL 2 mg/litre BEI urine; end of shift Yugoslavia 295 (100) Notified by county TWA and TLV are, with one exception, in the range of 295-590 mg/m3 (100-200 ppm).
Ethyl tert-butyl ether | Wiki | Everipedia
ENVIRONMENTAL LEVELS AND HUMAN EXPOSURE An industrial emission study indicated that 90 tonnes of isobutanol were released into the air over 1 year in the Netherlands (Anon, 1983).
Thox Ethyl tertbutyl ether (ETBE ) - PKN ORLEN
Because of methodological inadequacies and the manner of reporting the data, it was not possible to determine whether isobutanol should be regarded as an animal carcinogen.
Alcohols etherified with tert-butyl methyl ether as tert-butyl ..
There was no experimental evidence to suggest that any of the solvents known to be present in the mixtures alone, or MEK and MIBK together, could produce this type of neuropathy.
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