Search found 2621 matches

by Labbie
12 Nov 2007, 07:35
Forum: Safety with Chemicals
Topic: acids in plastic bottles
Replies: 11
Views: 3181

Re: acids in plastic bottles

Some times on the MSDS, it has transport details. Packaged in plastic, storage glass. I do not have a fume cupboard (as Yet) I have two on their way, which year they'll arrive I do not know. And I have some bottles arrived in plastic, awaiting the fume cupboard so I can decant them into glass. Of co...
by Labbie
11 Nov 2007, 18:21
Forum: Chemistry and Labware - General
Topic: Clean burnt Sugar from glassware
Replies: 7
Views: 3298

Re: Clean burnt Sugar from glassware

Yes so do I, but this teacher helped him self. He did'nt ask, just went ahead and did it.

That Nappy San is really good.
by Labbie
09 Nov 2007, 13:28
Forum: Biology, Physics...
Topic: enzyme experiment Yr. 12
Replies: 32
Views: 11618

Re: enzyme experiment Yr. 12

May I hope on the band wagon also.

My fax number is 9823 7662 attn Sue in Science

Thank you.

Have a great weekend
by Labbie
09 Nov 2007, 13:20
Forum: Chemistry and Labware - General
Topic: Clean burnt Sugar from glassware
Replies: 7
Views: 3298

Re: Clean burnt Sugar from glassware

I had forgotton about Nappy Sand, Silly me, but we have run out of that. So I will have a go with Sodium Hydroxide, I have some Old 3M which I could use up, as a cleaning Acid. Thank you again =D>
by Labbie
09 Nov 2007, 12:30
Forum: Safety with Chemicals
Topic: acids in plastic bottles
Replies: 11
Views: 3181

Re: acids in plastic bottles

Yes folks all acids. My husband works for Fire Brigade, it is in Plastic for transport reasons. And should be put into amber glass on arrival. I was not sure myself, "Should the truck have an accident, it is less glass to clean up for the poor over worked Fire person's, can not say Fire man any...
by Labbie
09 Nov 2007, 11:03
Forum: Chemistry and Labware - General
Topic: Clean burnt Sugar from glassware
Replies: 7
Views: 3298

Clean burnt Sugar from glassware

One lovely teacher, has some burnt sugar in our new test tubes, about 22 of them. Any ideas how to remove this mess :w00t:

I have tried really HOT HOT water, & soaked over night with oxalate acid. Help
by Labbie
09 Nov 2007, 10:29
Forum: Chemistry and Labware - General
Topic: Chem. Stores
Replies: 7
Views: 2870

Re: Chem. Stores

We have only wooden shelves, we put a slab of glass down, then the items on top. Old pieces of glass, or even a glass tray. We have our Class 8 in glass trays on wooden shelves, its the best we can do for now.
by Labbie
09 Nov 2007, 10:26
Forum: Safety with Chemicals
Topic: acids in plastic bottles
Replies: 11
Views: 3181

Re: acids in plastic bottles

I agree go glass all the way, plastic can go brittle at any time.

Safety reason's stick to GLASS.
by Labbie
07 Nov 2007, 09:40
Forum: Sourcing Materials & Eq Repairs
Topic: human cheek cells, prepared microscope slides
Replies: 5
Views: 2431

Re: human cheek cells, prepared microscope slides

Issco have minigrid slides 5 for $13.00 or 10 for $12.00
by Labbie
07 Nov 2007, 09:07
Forum: Sourcing Materials & Eq Repairs
Topic: human cheek cells, prepared microscope slides
Replies: 5
Views: 2431

Re: human cheek cells, prepared microscope slides

Southern Biology, has never let us down yet.
by Labbie
06 Nov 2007, 10:21
Forum: Safety with Chemicals
Topic: FerrOUS Chloride (Hydrated)
Replies: 7
Views: 2259

Re: FerrOUS Chloride (Hydrated)

Had quick look on Chem watch, No Packing Group & No DG Class,

My self I would put a GREEN dot on to it.

See what you think, perhaps others out their in NSW could help.
by Labbie
06 Nov 2007, 10:09
Forum: Safety with Chemicals
Topic: FerrOUS Chloride (Hydrated)
Replies: 7
Views: 2259

Re: FerrOUS Chloride (Hydrated)

Well I be __________________ What can we say Ian, What does the MSDS say, some times you can work it out, by what they say.
Good luck
by Labbie
06 Nov 2007, 07:26
Forum: Chemistry and Labware - General
Topic: Microwave ovens
Replies: 32
Views: 10122

Re: Microwave ovens

Yes I am sure they suggested useing Oven bags, tie the agar plates up, so their is no mess. And put them into the Microwave, but I am unsure how long for.
by Labbie
06 Nov 2007, 07:22
Forum: Chemistry and Labware - General
Topic: HCL
Replies: 7
Views: 2825

Re: HCL

It is a very good rule to always use Distilled water for Diluting anything. It is one of the purest waters we can use.
by Labbie
05 Nov 2007, 13:10
Forum: Chemistry and Labware - General
Topic: HCL
Replies: 7
Views: 2825

Re: HCL

I think in this case Breakdown, means if you are going to Dilute DOWN to another M. Say you had 6M eg 500ml of 6M add 2.500ml of distilled water for 1M.
by Labbie
05 Nov 2007, 09:27
Forum: Miscellaneous
Topic: Melbourne Cup
Replies: 9
Views: 3356

Re: Melbourne Cup

I did not know they got a Public Holiday, perhaps they miss out on some thing else??
by Labbie
02 Nov 2007, 10:42
Forum: Chemistry and Labware - General
Topic: Ammonium Phosphate?
Replies: 12
Views: 4097

Re: Ammonium Phosphate?

Sorry you also asked what is the difference between.

Tribasic has 3 Replaceable Hydrogen atoms
MonoBasic has 1 Replaceable Hydrogen atom
Di Basic has 2 Replaceable Hydrogen atoms

So each one would have a different Molecular weight

Do that help any more
by Labbie
02 Nov 2007, 09:12
Forum: Chemistry and Labware - General
Topic: Microwave ovens
Replies: 32
Views: 10122

Re: Microwave ovens

We have been thinking of purchasing a Microwave for the prep room. But on reading that they do not sterlize agar plates. Has any one else heard this one??????????
by Labbie
02 Nov 2007, 09:07
Forum: Chemistry and Labware - General
Topic: Ammonium Phosphate?
Replies: 12
Views: 4097

Re: Ammonium Phosphate?

From the CSIS Voleume 2 appendices page 38 Ammonium Dihydrogen Phosphate is a mineral nutrient for yeast culture media. It is also known as Ammonium Dihydrogen Orthophosphate Ammonium biphosphate, & Ammonium phosphate Monobasic, Cas No 7722-76-1. So perhaps these names where once used. Hope this...
by Labbie
01 Nov 2007, 16:49
Forum: Announcements
Topic: SASS Conference St Marys
Replies: 24
Views: 9274

Re: SASS Conference St Marys 2007

Any one needing a lift from Hoxton Park, Hinchinbrook area. I have one space left in our car. We car pool. Going both days Thurs & Friday.