Search found 623 matches
- 16 May 2014, 14:49
- Forum: Announcements
- Topic: Robb has returned
- Replies: 10
- Views: 5818
Re: Robb has returned
Hi All, I have been working on the new Space transportation system called ARES, There have been several launches over the last few months that we have not shared with the public. These are just simple launches to test the rocket itself, no sinister background just plane old launches. THe ARES will r...
- 16 May 2014, 09:34
- Forum: Sourcing Materials & Eq Repairs
- Topic: 10ml droppers
- Replies: 4
- Views: 3218
Re: 10ml droppers
Hi Xenon,
Try a company called LABTEK, Phone: 1300 881 318
Although I also make reference to our sponsors of the Chemtalk forum, Just to be fair for all involved. : )
Cheers,
Robb.....
Try a company called LABTEK, Phone: 1300 881 318
Although I also make reference to our sponsors of the Chemtalk forum, Just to be fair for all involved. : )
Cheers,
Robb.....
- 16 May 2014, 09:30
- Forum: Announcements
- Topic: Robb has returned
- Replies: 10
- Views: 5818
Robb has returned
Hi All, I have been absent from the Chemtalk forum as I have been to NASA in the US. I have worked on a few things over there hence my absence. I forgot to send a message out before I left but when you are preparing to leave other stresses take over. I could'nt remember my password over there as I h...
- 05 Jun 2013, 12:50
- Forum: Biology, Physics...
- Topic: Lasers
- Replies: 5
- Views: 3156
Re: Lasers
Hi All,
The LASER guide for use of lasers require that the / a sign be put in place. It would be beneficial..
Cheers,
Robb.....
The LASER guide for use of lasers require that the / a sign be put in place. It would be beneficial..
Cheers,
Robb.....
- 27 May 2013, 11:56
- Forum: Safety with Chemicals
- Topic: Copper sulfate soultion
- Replies: 38
- Views: 18596
Re: Copper sulfate soultion
Hi All,
Just retort to my last post.
The pH would not even move by 0.1 pH unit.
Cheers,
Robb.....
Just retort to my last post.
The pH would not even move by 0.1 pH unit.
Cheers,
Robb.....
- 27 May 2013, 11:55
- Forum: Safety with Chemicals
- Topic: Copper sulfate soultion
- Replies: 38
- Views: 18596
Re: Copper sulfate soultion
Hi All,
That's right. Only a small amount won't even acidify it when you look at the ratio of Copper sulfate and Sulfuric. It's..... Negligible....
Cheers,
Robb.....
That's right. Only a small amount won't even acidify it when you look at the ratio of Copper sulfate and Sulfuric. It's..... Negligible....
Cheers,
Robb.....
- 24 May 2013, 14:17
- Forum: Safety with Chemicals
- Topic: Copper sulfate soultion
- Replies: 38
- Views: 18596
Sulfuric Acid in Copper Sulfate
Hi All, Back by popular demand is a post which I included on chemtalk a few years ago now..... This includes adding Sulfuric Acid to Copper Sulfate solution (particularly but not limited to high concentrations). The reason for this sulfuric Additive is to prevent the drop out of Cu2+ and Cu3+ ions w...
- 25 Mar 2013, 08:40
- Forum: Recipes and Pracs
- Topic: ionic compounds
- Replies: 6
- Views: 4085
Re: ionic compounds
HI All,
Great to see everyone on the ball with things, the networking is absolutely priceless for those questions and queries that many people have. Both new and old....
Cheers,
Robb.....
Great to see everyone on the ball with things, the networking is absolutely priceless for those questions and queries that many people have. Both new and old....
Cheers,
Robb.....
- 19 Mar 2013, 20:57
- Forum: Chemistry and Labware - General
- Topic: Professional Development
- Replies: 0
- Views: 1834
Professional Development
Hi All, Im'm running a Professional Development day 1st day back T2 on GHS and other topics at my school, (Lake Munmorah High School), if you can get onto MyPL you should be able to register (60 persons max). Hurry because the seats are filling fast!! You won't be dissapointed... Unfortunately this ...
- 19 Mar 2013, 20:51
- Forum: Announcements
- Topic: Professional Development Day - Newcastle area - Monday 6 May
- Replies: 17
- Views: 7576
Re: Professional Development Day - Newcastle area - Monday 6
Hi All, Im'm running a Professional Development day 1st day back T2 on GHS at my school if you can get onto MyPL you should be able to register (60 persons max). You won't be dissapointed... Unfortunately this is open to anyone whom can access the MyPL on the DEC website. Great opportunity to meet m...
- 12 Dec 2012, 13:00
- Forum: Recipes and Pracs
- Topic: Silver Nitrate stains
- Replies: 17
- Views: 7135
Re: Silver Nitrate stains
Hi All, If you are removing Silver Nit. stains from your hands let nature do its course. Wait until the stains are removed. There are studies currently happening regarding using silver as a therapeutic drug so this won't be a dire concern if it is on your skin. (The reason I know this is that I am r...
- 20 Nov 2012, 11:43
- Forum: Sourcing Materials & Eq Repairs
- Topic: Interferometer
- Replies: 5
- Views: 3423
Re: Interferometer
Hi All,
Any reputable science suppliers will have one. They will source something for you.
Cheers,
Robb.....
Any reputable science suppliers will have one. They will source something for you.
Cheers,
Robb.....
- 20 Nov 2012, 11:27
- Forum: Safety with Chemicals
- Topic: Iron(II) nitrate
- Replies: 6
- Views: 5712
Re: Iron(II) nitrate
Hi All,
Try looking for ferrous nitrate in your search.
Cheers,
Robb.....
Try looking for ferrous nitrate in your search.
Cheers,
Robb.....
- 15 Nov 2012, 09:07
- Forum: Chemistry and Labware - General
- Topic: Old Chemicals
- Replies: 5
- Views: 3247
Re: Old Chemicals
Hi All,
It's interesting that the US and Aus have different systematic approaches to Hazardous Substances. But You guy's have this topic under control with some very interesting feedback.
Cheers,
Robb.....
It's interesting that the US and Aus have different systematic approaches to Hazardous Substances. But You guy's have this topic under control with some very interesting feedback.
Cheers,
Robb.....
- 09 Nov 2012, 10:54
- Forum: Sourcing Materials & Eq Repairs
- Topic: physics string
- Replies: 14
- Views: 6159
Re: physics string
HI All,
I like this post as it relates back to my origanal post regarding the string theory..
But seriously I perferr the bick layer stuff.
Cheers,
Robb...
I like this post as it relates back to my origanal post regarding the string theory..
But seriously I perferr the bick layer stuff.
Cheers,
Robb...
- 07 Nov 2012, 14:45
- Forum: Chemistry and Labware - General
- Topic: Decomposition reactions Y9
- Replies: 5
- Views: 3394
Re: Decomposition reactions Y9
Hi All, Try a Mecka burner, use a boiling tube (larger diameter T.Tube) and a little Copper Carbonate (Just to cover the bottom) the heating problem your getting is that the Copper carbonate is converting to Copper Oxide and the left ofer carbonate the kids are trying to decompose, the problem with ...
- 07 Nov 2012, 14:33
- Forum: Miscellaneous
- Topic: Luminol
- Replies: 16
- Views: 17795
Re: Luminol
Hi All,
You have all great reactions that will do what is needed.
Take your pick and pretty much go from there. Safety first though.
Cheers,
Robb.....
You have all great reactions that will do what is needed.
Take your pick and pretty much go from there. Safety first though.
Cheers,
Robb.....
- 07 Nov 2012, 14:27
- Forum: Announcements
- Topic: St MARY'S 2012
- Replies: 123
- Views: 41032
Re: St MARY'S 2012
Hi All,
Food for thought next year. WIll keep you posted at the most earliest possible time.
Still trying to get to one of the St Mary's functions.
Cheers,
Robb.....
Food for thought next year. WIll keep you posted at the most earliest possible time.
Still trying to get to one of the St Mary's functions.
Cheers,
Robb.....
- 07 Nov 2012, 14:14
- Forum: Sourcing Materials & Eq Repairs
- Topic: physics string
- Replies: 14
- Views: 6159
Re: physics string
Hi All, Any thick (3mm diam) string that will not undo itself (if that makes sense).. But I will give you a little trick of the trade.... LISTEN CAREFULLY......... Brick layers string (the coloured stuff). Perfect for Physics. I use it on my Physics projects at Uni (No..... not on Satellites or that...
- 07 Nov 2012, 09:59
- Forum: Miscellaneous
- Topic: Luminol
- Replies: 16
- Views: 17795
Re: Luminol
Hi All,
Yes, then add the oxidiser to give the blue/green glow for that purpose.
Awesome....
Cheers,
Robb.....
Yes, then add the oxidiser to give the blue/green glow for that purpose.
Awesome....
Cheers,
Robb.....