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All 3 posts   Subject: C6H5-OH + H2S2O8   Please login to post   Down

 
    acx01b
(Hive Bee)
11-04-04 00:15
No 539532
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      C6H5-OH + H2S2O8     

hi, i founded that:

    PHENOL

                          Molecular formula: C6H6O
                       CAS registry number: 108-95-2
                  RTEC registry number: SJ 3325000 (solid)


    ------------------------------------------------------------------------------------------------------------------------------
    PHYSICAL PROPERTIES                                   OTHER CHARACTERISTICS
    ------------------------------------------------------------------------------------------------------------------------------
   
    Relative molecular mass          94.11                White crystalline solid turning pink or red when
    Melting point (°C)               40.9                 exposed to air and light; burning taste and
    Boiling point (°C)               181.75               distinctive odour; the compound reacts moderately
    Water solubility (g/litre)       67                   fast with oxidizing agents and violently with
    Specific density (25°C)          1.071                butadiene, peroxydisulfuric acid, peroxymono-
    Relative vapour density          3.24                 sulfuric acid, and aluminium chloride + nitro-
    Vapour pressure (kPa) (20°C)     0.04 (0.357 mmHg)    benzene; when heated or burning the compound
    Ignition temperature (°C)        715                  emits toxic fumes; the compound is extremely
    Flash point (closed cup) (°C)    80                   destructive to mucous membranes, skin, and eyes
    Flammability (explosive)                              and may be fatal if inhaled, swallowed, or absorbed
      limits (vol. %)                1.3-9.5              through the skin

what is the reaction between Ph-OH and H2S2O8 ?
i guess Ph-X reacts same way ?
 
 
 
 
    jboogie
(Hive Bee)
11-04-04 02:22
No 539563
      other fun facts to know about phenol     

Disposition in the Body.Rapidly absorbed from the gastrointestinal tract and readily penetrates the skin. It is metabolised by conjugation to yield phenyl glucuronide and phenyl sulfate; small amounts are oxidised to catechol and quinol which are also conjugated. Oxidation of these metabolites to quinones may tint the urine green.(hehehe)laugh Acid–labile phenol conjugates are present endogenously in serum at concentrations of about 0.1 mg/L. Phenol is a metabolite of benzene. Endogenous phenol concentrations in urine average about 5 to 10 mg/L.
Toxicity.Phenol denatures and precipitates cellular proteins and thus may cause rapid poisoning. The minimum lethal dose by mouth is about 1 g. Severe and even fatal poisoning may also arise from absorption of phenol from open wounds or through the intact skin. The maximum permissible atmospheric concentration is 5 ppm.

Don't you think if I had something intelligent to say, it would bee in my post?
 
 
 
 
    yei
(Hive Bee)
11-10-04 18:11
No 540870
      It gets oxidized to quinones     

preferably p-benzoquinone.

This reaction doesn't work for Ph-X, and anyway, if you have that you can use if for better things.

It's good to bee back! Don't trust your computer!!
 
 

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