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sodium silicate from silica sand and sodium hydroxide solution in water for making calcium silicate
As it happens I just made a small amount of sodium silicate solution last week.
I used the NurdRage ... |
23-8-2025 at 07:07
by: Cathoderay |
DIY temperature probe for hotplate, help!
I haven't been on the forum for a bit so I just saw this.
I don't think I have good news for you. ... |
19-8-2025 at 12:34
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
Almost any hardware store has triangular files.
You should get out more and explore places like har ... |
16-7-2025 at 06:37
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
As bnull and I suggested a month ago, reading some books may answer many of your questions.
A lin ... |
15-7-2025 at 07:11
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
It may be more like a deposit of copper, if a powder rubs off easily it and does not leave a copper ... |
11-7-2025 at 10:00
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
OK.
I would add more breakers of various sizes, easier to clean than the conical flasks.
I could ... |
9-7-2025 at 06:39
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
Oh, sorry, I missed that.
In that case the diatomaceous earth would not be a good choice. It would ... |
8-7-2025 at 19:06
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
I didn't know what Nitrox2 was after, seems like it is sulfuric acid.
Yes, I was going to suggest ... |
8-7-2025 at 11:22
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
I'm seeing the sciencemadness server slowing down.
I'm not sold on the coffee filters being too c ... |
7-7-2025 at 15:36
by: Cathoderay |
How much sand / oil is generally needed for a heating bath?
As far as outdoors vs. fumehood, it somewhat depends on the weather and what gases might come off th ... |
4-7-2025 at 13:00
by: Cathoderay |
How much sand / oil is generally needed for a heating bath?
I don't think any brown glass is pyrex so I'd be careful of heating it.
Also I'd be careful of bur ... |
3-7-2025 at 13:50
by: Cathoderay |
How much sand / oil is generally needed for a heating bath?
The first time you heat that can you might find that there is a coating on it that may burn off. For ... |
2-7-2025 at 07:07
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
That brings back memories.
When I was about 10-12 years old or so I did the growing sugar crystal t ... |
27-6-2025 at 13:05
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
I will second the suggestion about a book in the library here. Download from this link.
https://lib ... |
27-6-2025 at 07:52
by: Cathoderay |
Rubber Septum
I think those punches you show there are for something like leather. They wouldn't work for somethin ... |
26-6-2025 at 10:51
by: Cathoderay |
Rubber Septum
I know, but stoppers should work also.
|
25-6-2025 at 09:25
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
[rquote=701423&tid=161124&author=Nitrox2]My Mom is getting sick, point noted about her. I ma ... |
24-6-2025 at 11:14
by: Cathoderay |
Rubber Septum
A #3 rubber stopper should work with a 20mm opening.
Careful about inserting the glass tube, it can ... |
24-6-2025 at 10:53
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
What did mom say no to?
Maybe there are no videos of that because the equipment is unsuitable.
... |
23-6-2025 at 14:52
by: Cathoderay |
Help to determine what this mineral is
I've been searching around to find methods.
So here is another idea.
You can get a free download o ... |
19-6-2025 at 13:41
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
[rquote=701362&tid=161124&author=Nitrox2]I have this block that is 7 1/4" x 15 11/16"
Not ... |
18-6-2025 at 18:01
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
Ha-ha! I was wondering who the heck Gemini was.
Seriously, why would you go to AI when you have p ... |
18-6-2025 at 17:30
by: Cathoderay |
Help to determine what this mineral is
Well, I wouldn't be so optimistic.
The stannous chloride test depends on the gold being in solution ... |
18-6-2025 at 10:05
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
One thing to know is that there are different levels of vacuum needed for different things.
For fil ... |
17-6-2025 at 11:51
by: Cathoderay |
Most utility packed chemistry dream kit for $50-$150
You seem to have gone from tentative beginning chemistry to something rather specific and advanced i ... |
15-6-2025 at 11:55
by: Cathoderay |
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