Re: [Histonet] Thanks for Help!
To measure the specific gravity without a hydrometer:
1. Weigh a container that will take just over 10 mL to 4 decimal places.
2. Using a volumetric pipette, place 10 mL of the methanol into the
3. Weigh it again to 4 decimal places.
4. Subtract the weight of the empty container from the weight with the
methanol to get the weight of 10 mL methanol.
5. Divide the weight of the methanol by 10 (move 1 decimal place to the
6. That is the specific gravity of the methanol. Compare it to a chart
----- Original Message -----
From: "María Teresa Domínguez"
Sent: Wednesday, April 07, 2004 12:09 PM
Subject: [Histonet] Thanks for Help!
> We haven't bought this Methano. I t was a "gift" from a
> private lab, they bought some to a new Co. and they sent to us 5
> liters ina big bottle, that's why I couldn't get any information about
> this alcohol.
> Now, the problem is we don't have an Hidrometer, so we checked it
> with 2 ml. of Methanol in a little tube and 0,5 ml of oil, then I
> shaked them, and I could see little drops of oil, like an emulsion,
> the solution changed the colour, it turned white with drops in it.
> Maybe water??
> The last step I did. I compair the solution with the Methanol we have
> kept in the lab which I know it is 98.8 % pure with 0,1% water. The
> drops of oil were quite bit less than in the other solution. What does
> it means??
> I need
> someone who knows about chemistry soon!!
> Thanks again for your advices and HAPPY EASTER! for everyone.
> H.T. Maria Teresa Dominguez
> Anatomy Pathologyc,
> Zonal Hospital of Río Grande,
> Tierra del Fuego, Argentina.
> MSN 8 with e-mail virus protection service: 2 months FREE*
> 1. http://g.msn.com/8HMBEN/2740??PS=
> Histonet mailing list
Histonet mailing list
<< Previous Message | Next Message >>