THe_rEaL_dEaL
November 8th, 2003, 08:57 AM
Today I was dreaming up some picric acid via the KNO<sub>3</sub> Sulfuric Acid process.
During the tedious step of the nitrate addition to the solution, it constantly fumed as I became impatient and also because I accidently poured too much nitrate into the beaker at one time. (result: SH IT *running from the fuming beaker grabing a deep breath of fresh air running back stirring.....face goin red...running to get some air*) by then the fuming had stopped and I had mixed all of the added nitrate.
Got me thinking there must be a constant way of adding this shit over a long semi-supervised period (watch the reaction from safe location, while addition and mech stirrer do their thing = less potential N0<sub>2</sub> exposure :cool: )
My idea is to chop an hourglass in half, above the middle and seal a filter funnel (- long tip) or some sort of container with funnel shape at the bottom to the half eggtimer.
An eggtimer could be choosen which has the satisfatory flowrate and could be supported above the picric/whatever reaction vessel with a retort stand and some clamps and the reaction watched to completion while a magnetic stirrer constantly stirs the beaker/flask.
This is assuming the KNO<sub>3</sub> or the applicable powder needed for addition was in granular form in a finely divided enough state to pass through the small end of the hourglass.
If the powder is too large to fit through the small hole some ball milling, if safe, could be done to the powder or a larger ID holed hourglass could be substituted.
This way a costant flow of the powder granules could be facilitated and the reaction with the aid of a stirring device could go to completion ready for the next step with the absence of close supervision. The person could stand in a safe area and escape potential NOx,S0x etc. gas exposure during the solid addition.
Cheap hourglasses can be obtained from cooking stores where I live
During the tedious step of the nitrate addition to the solution, it constantly fumed as I became impatient and also because I accidently poured too much nitrate into the beaker at one time. (result: SH IT *running from the fuming beaker grabing a deep breath of fresh air running back stirring.....face goin red...running to get some air*) by then the fuming had stopped and I had mixed all of the added nitrate.
Got me thinking there must be a constant way of adding this shit over a long semi-supervised period (watch the reaction from safe location, while addition and mech stirrer do their thing = less potential N0<sub>2</sub> exposure :cool: )
My idea is to chop an hourglass in half, above the middle and seal a filter funnel (- long tip) or some sort of container with funnel shape at the bottom to the half eggtimer.
An eggtimer could be choosen which has the satisfatory flowrate and could be supported above the picric/whatever reaction vessel with a retort stand and some clamps and the reaction watched to completion while a magnetic stirrer constantly stirs the beaker/flask.
This is assuming the KNO<sub>3</sub> or the applicable powder needed for addition was in granular form in a finely divided enough state to pass through the small end of the hourglass.
If the powder is too large to fit through the small hole some ball milling, if safe, could be done to the powder or a larger ID holed hourglass could be substituted.
This way a costant flow of the powder granules could be facilitated and the reaction with the aid of a stirring device could go to completion ready for the next step with the absence of close supervision. The person could stand in a safe area and escape potential NOx,S0x etc. gas exposure during the solid addition.
Cheap hourglasses can be obtained from cooking stores where I live