Australia's Science Forum

Hi All,

Don't add the oxidiser.... the Iron in blood will act as this, this is what produces the glowing Luminol.

Cheers,

Robb.....

Hi All, So I don't copy my post on the Astronomy thread 7 topic I can say that the Southern eastern seaboard will only see the Partial Eclipse. Eg, Post Stevens, Newcastle/Hunter, Central Coast, Sydney regions will only get the partial. Although If we lived in the United States they get to see the L...

Hi All,

I have three telescope I will bring in from home but only one has the filter available.

Cheers,

Robb.....

Hi Noona/All,

I would love to present at the St Mary's but every year it seems to clash with my University studies and eam period.

Is there a calendar you could devise to show upcoming dates or is this a challenge too difficult to forsee?

Cheers,

Robb.....

Hi All, Working solution I have here are stored in screw cap bottles 250mL or 500mL depending of the working use of each solution. Ten in a plastic tote tray for ease of carting and sorting on shelves. Depending on the space you have will determine your method of storage also.... Sodium well...........

Hi David,

Please refer to the PM I have sent. US is a far better quality, but be aware there can be restrictions (Scientific Research etc).

Cheers,

Robb.....

Hi All,

Place them in bleach for an hour and they will be rejuvenated.

Cheers,

Robb.....

Hi All,

Mostly darkens due to Pb in glass...

Lead in levels where is it neglegible, but over time causes the acid to darken..

If you look carefully the hint of dull grey will be apparent.

Cheers,

Robb.....

Hi All,

Platinum works the best here, and we all know that the precious metal costs all but..

Trick-of-the-trade, Shop around and phone before you order for the best price carefully as the metal fluctuates with the stock market. Remember (precious metal!!!)..

Cheers,

Robb.....

Hi All, I have never allowed food in the laboratories, "Sigh" I guess it just a general consensus that in Industry we have standards and those aren't being pushed right from the start (e.g. at high school level), This may seem a bit harsh but I guess it only my opinion, we move our food op...

Hi All, Can I just step in here and offer a means to the end of the autonomous array... The policy for eating in the preproom is of a general consensus, ethically I would not necessarily eat in the preproom, ALTHOUGH - If there is an area well away from preparation areas then this could be fine. The...

Hi All,

Hmmmmm!!!!!!!!!!!!!

Cheers,

Robb.....

Hi All, Re: (Dry Ice) I have sent an reccomendation to the Attorney Generals office for hazardous chemicals regarding the use of Dry Ice in schools, particularly when there is negligence involved. This should give a better understanding of the event at hand. This event is embarrasing to the better t...

Hi All,

It is great to see that you have aimed this high for I guesss "Levels within the role are great to see" and I do wish all the very best for the success of ASET.

You have my support for this great organisation.

Cheers,

Robb.....

Hi All, I had some made from a design I had made, took this to a printing firm and had 20 made up. Up to date info plus cost us nothing. They contain all relevant information pl;us colour diagrams of metals and a brief historical blurb to go with each. I had then printed the same table omitting the ...

Hi All,

Polythene are a good choice particularly when there are long storage items in the cupboard.

Cheers,

Robb.....

Hi All, I have seen this problem for many years, unfortunately the corrosive cabinet is only used to segregate the Class 8 Chems from the rest. Unfortunately these cabinets are powder coated hi carbon steel. These will infact corrode and do require wiping out occasionally. The Australian Standards o...

Hi All, Ocker, Sorry I did not see this until now.. I have a Davis weather station at home. Unfortunately it cost myself ca $2500.00 this is a damn good unit that measures Solar, UV, Barometer in and out, Temp in and out. Wind - Anemometer, and is completely wireless. I have two control panels, one ...

Hi All,

Hmmmmmm...!


Cheers,

Robb.....

Hi All, There is no problem with your solution, the pH change is due to the Anhydrous beginning to absorb water as you add it to make the 1M solution. Hydrogen in the Water is being raised to a higher energy level (into H 3 O+) and this is contributing to the pH 10 you are experiencing. This only ne...