Australia's Science Forum

DO YOU FEEL A CHANGE OF LOCATION COMING ON !! Expressions of interest required at this stage. Junior Science/Biology/Earth Science, FULL TIME LABORATORY TECHNICIAN taking long service leave for all of 2013. You will need to be available from term 4, 2012. The position of FULL TIME, Chemistry/Physic...

Gday Marg,
WTG.

Something antique made by SHIMADZU, supplied by TOWNSON & MERCER.
See attached jpg's.

http://www.stdominics.nsw.edu.au/

paraDICHLOROBENZENE is best, but must be performed in fume hood.

STEARIC ACID is safest.

Gday All. These attached files may be of some help!! We purchase the Volumetric Standards produced by AJAX. (1M HCl, 1M H2SO4 & 0.02M KMnO4) Then we buy cheapest stock and titrate against the above standards to find thier true Molarity. Tip for ease of titrating: Use burette, magnetic stirrer, b...

CHLORINE, BROMINE & IODINE WATER PREPARATION. 1. CHLORINE WATER. Commercial Bleach 575.0 ml. Hydrochloric Acid 2M. HCl 425.0 ml. 2. BROMINE WATER. Potassium Bromide 0.2M. KBr 855.0 ml. Potassium Bromate. KBrO3 0.75 gm. Hydrochloric Acid 2M. HCl 145.0 ml. 3. IODINE WATER. Water. H2O 980.0 ml. Po...

Gday All, The usual wording in legislation is along these lines, "5 years or when a change is made, new information is available" So the way I read it is you have to check every time you use a chemical. On my experiment setup sheet I list all chemicals which makes it easier to do a quick s...

Gday All,

For general information!!!

Don't go to your local Tandy or Dick Smith store, go online to Dick Smith Wholesale, all prices are well below store prices.

Gday All, Just ordered today, a pair of "WHOLE OF HOUSE" twin 20" cartridge filter systems for use in both of our prep room mains water supply at our school, no waste at all. This is for general water use, it would appear to be the answer to our main problems of ALGAE & CHLORINE, ...

To ELIMINATE the RISK of injury as no force on the glass tubing is required!! Locate the size of cork borer that just fits over your glass tubing, push the borer through the hole, insert the glass tube through the borer ensuring that it is positioned where you want it in the stopper, gently remove t...

Gday, Definitely need a hole boring machine, cost effective as it lasts forever, good idea to purchase an extra set of borer tubes to have at hand in case of breakage. Short glass tube through rubber stopper and LATEX tubing (from LIVINGSTONE) for longer lasting flexibility. This method reduces the ...

We get ours from AIS in Victoria.

210 or 310g +-0.01g approx $500, for general class use.

20kg +-1.0g for general larger masses.

Hope this helps.....IRD

"The authority of those who teach is often an obstacle to those who want to learn."

Gday All, We have to move away from water wasting distillation to produce 200lt per week. I would like to know what other school labs use to produce PURE WATER plus any recomendations. Our biggest problems are ALGAE, pH & CHLORINE. Thanks a million in advance.....IRD "The best teacher is on...

Finish power ball & Pot cycle, the only way to go.
Anything this will not shift is 'accidentally' broken and replaced from LIVINGTONE.

We use disposable borosilicate culture tubes, 13x100mm & 16x150mm, original boxes as suplied, discarded into classroom sharps container, no washup contamination. 25x150mm & larger, plus all other glassware is distributed in class sets. Nothing to the students without passing through a LABTEC...

contact Christina Jensen 07 38345236