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Formic acid from Hexamine/HCl?
You make preparaing formic sound like a nightmare which makes me want to do it even more so. Surley ... |
5-12-2008 at 19:16
by: angelhair |
Routes to Calcium benzoate
Benzoic acid and Na benzoate yes. but I haven't seen Ca benzoate anywhere. Food ingredient suppliers ... |
5-12-2008 at 19:03
by: angelhair |
Formic acid from Hexamine/HCl?
50-60% via Oxalic is low. I would like 70% at least. Other than distillation, what drying agent coul ... |
1-12-2008 at 21:31
by: angelhair |
Routes to Calcium benzoate
I can only think of 2.
Benzoic acid with CaCO3 and benzotrichloride with CaO. How many other easy w ... |
1-12-2008 at 01:15
by: angelhair |
What size column for my flask?
Where can I find information that tells me how many milimeters equals number of plates. I haven't fo ... |
10-11-2008 at 01:00
by: angelhair |
pH probe for toluene
I will check that out thanks.
Just on a slight side note. I read that if you overshoot with HCl y ... |
10-11-2008 at 00:48
by: angelhair |
pH probe for toluene
What type of pH probe can best be used to measure and monitor the HCl gassing of substanes in polar ... |
6-11-2008 at 16:28
by: angelhair |
What size column for my flask?
yes I understand what you're saying. I don't have anything specific to separate, just general solven ... |
6-11-2008 at 16:07
by: angelhair |
purifying toluene properly
I don't need super dry toluene for anything yet, it was just an academic question to fill in some kn ... |
6-11-2008 at 15:50
by: angelhair |
The death of NaOH
Is it just me or have you noticed what is happening to the NaOH from suppermarkets and hardware stor ... |
3-11-2008 at 16:49
by: angelhair |
What size column for my flask?
Can some one suggest an appropiate size column, width and height for a 12L RBF, because the largest ... |
3-11-2008 at 16:36
by: angelhair |
purifying toluene properly
Thanks for that, I do take your point about the amount of sulphur in the toluene of today.
Just o ... |
3-11-2008 at 16:10
by: angelhair |
Purifying Denatured absolute EtOH Superheating problem
Yes! I made some teflon wool and it is good, but it didn't solve the supperheating problem, only har ... |
20-10-2008 at 17:00
by: angelhair |
Pet Ether from petrol
What is the fraction that comes over at about 19 deg C? Is it useful for anything? |
20-10-2008 at 16:51
by: angelhair |
"OTC" replacement for Soxhlet extraction sleeves?
Sorry Stoi, I didn't mean that I made a sleave out of nylon/ glass wool.
All I did was to suff th ... |
20-10-2008 at 16:32
by: angelhair |
"dry" acetone
How hygroscopic is dry acetone?
If you used K2CO3 to dry it and then left the acetone in an open ... |
15-10-2008 at 00:39
by: angelhair |
purifying toluene properly
It's a good quality commercial grade from a chemical supplier, but it's not lab grade. It may be tec ... |
15-10-2008 at 00:25
by: angelhair |
purifying toluene properly
How do you purify toluene without loosing a lot of it?
I tried to clean 8L of commercial toluene ... |
14-10-2008 at 00:45
by: angelhair |
"dry" acetone
Can anybody confirm the efficency of Sodium carbonate and whether there are any condensation product ... |
8-9-2008 at 21:09
by: angelhair |
"OTC" replacement for Soxhlet extraction sleeves?
Stoi,
I have a 2l soxhlet and I once made my own sleve from paper pulp using a pvc tube with a f ... |
2-8-2008 at 18:12
by: angelhair |
Vacuum grease substitute?
I made some of that water soluble grease using suppermarket starch, turning that into soluble starch ... |
12-7-2008 at 17:28
by: angelhair |
Another Tosic acid question
I wanted the monohydrate from a dry Lab grade salt. So 150g of the supposed dry salt disolved after ... |
12-7-2008 at 17:01
by: angelhair |
Pure 100% OTC silicon oil
Where can you find pure 100% OTC silicon oil?
I know the hobby shops sell shock oil that actually ... |
14-6-2008 at 20:08
by: angelhair |
hydroxy-terminated dimethyl siloxane
Where can I find 100% hydroxy-terminated dimethyl siloxane?
Can you make it by reacting silicon o ... |
5-6-2008 at 19:05
by: angelhair |
Inorganic textbooks
Can someone please recomend an easy to read inorganic text book with lots of information and a great ... |
5-6-2008 at 18:15
by: angelhair |
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