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Benzene synthesis
Org? Organikum? What kind of cancer?
Whoever it was, rest in peace! |
6-4-2010 at 16:13
by: Jor |
oxalyl chloride by TCCA
[rquote=175087&tid=13590&author=DJF90]Jor: Anhydrous chlorides are best made by refluxing wi ... |
5-4-2010 at 17:14
by: Jor |
oxalyl chloride by TCCA
Entropy, the permissible exposure limit says nothing about lethality. I2 and Br2 have 0,1ppm, Cl2 (m ... |
5-4-2010 at 15:34
by: Jor |
oxalyl chloride by TCCA
First phosgene is more than twice as toxic than HCN, maybe it is 2 times more toxic if you recieve t ... |
4-4-2010 at 17:58
by: Jor |
oxalyl chloride by TCCA
I hope you realise this gas is an ENTIRE other league than Cl2/NO2, and it is even MUCH more toxic t ... |
4-4-2010 at 16:38
by: Jor |
oxalyl chloride by TCCA
Bis-trichloromethyl Oxalate=catalytic decomposition,heating=>(COCl)2
Is the other product phos ... |
4-4-2010 at 15:07
by: Jor |
proper disposal of ZnCl2
Zinc is very toxic to some organisms , but it much less of a problem than metals such as Hg, Cd, Pb, ... |
3-4-2010 at 13:01
by: Jor |
ammonium perrhenate reduction
I think this was not a solid solid reaction, as the zinc likely melted, but i'm not sure. I don't wa ... |
3-4-2010 at 07:53
by: Jor |
ammonium perrhenate reduction
Ok, I just came home and rushed in the lab ASAP! 
I put 100mg of ammonium perrhenate, together ... |
2-4-2010 at 12:13
by: Jor |
Bottles for Acids?
In my opinion nitric should never be in plastic.
But if I have a choice, I always buy HCl in pla ... |
30-3-2010 at 17:53
by: Jor |
ammonium perrhenate reduction
I will only do the reaction in glass, if that's not possible, I will not do it, because i don't have ... |
30-3-2010 at 15:19
by: Jor |
ammonium perrhenate reduction
Maybe you could wash away those traces of perrhenic acid with water, wash with acetone and dry?
B ... |
29-3-2010 at 05:25
by: Jor |
ammonium perrhenate reduction
Well I at least wanted some Re metal as an element sample, so about 0,5g powder. Maybe I can do the ... |
29-3-2010 at 04:32
by: Jor |
ammonium perrhenate reduction
not_important , I do have hydrazine. Will heating it with excess hydrazine for a few days maybe redu ... |
28-3-2010 at 11:04
by: Jor |
ammonium perrhenate reduction
Having bought 75 grams of ammonium perrhenate for about 45 euros (and having 5 more grams as a donat ... |
28-3-2010 at 06:34
by: Jor |
ether substitutes?
Don´t forget MTBE. Cheaper, not that harmful, forms no peroxides, volatile, etc. It is used very of ... |
20-3-2010 at 01:38
by: Jor |
brown color in precious metal solution?
I have now heated my ammonium hexachloroplatinate in a porcelain crucible, and a lot of white smoke ... |
13-3-2010 at 14:26
by: Jor |
Making KOH with Potassium Carbonate
1 mole of potassium carbonate per 1 mole of calcium hydroxide. Take a slight excess of potassium car ... |
9-3-2010 at 03:28
by: Jor |
fluorosilicic acid?
Well I think that's quite wasteful. Who knows what interesting properties NaSiF6 has, and otherwise ... |
9-3-2010 at 01:13
by: Jor |
fluorosilicic acid?
No I don't see the problem. I stated that liquid HF and solution are an extreme hazard, but I don't ... |
8-3-2010 at 15:59
by: Jor |
fluorosilicic acid?
Do NOT make cacium fluoride. This is an insoluble useless material. At least make NaF (not very solu ... |
8-3-2010 at 14:41
by: Jor |
brown color in precious metal solution?
I filtered the yellow precitpate without suction (don't have vaccuum), washed twice with 1M NH4Cl, a ... |
7-3-2010 at 11:29
by: Jor |
brown color in precious metal solution?
Ok, last week I was not able to dissolve the ammonium salts in aqua regia, even after boiling once w ... |
7-3-2010 at 05:54
by: Jor |
Preparation of elemental phosphorus
Nice work! What are you going to use the P for? PCl3, PCl5 or anything else?
How expensive was th ... |
5-3-2010 at 18:07
by: Jor |
HI reductions, no red P
Excess I2? Hydrazine is in excess! |
3-3-2010 at 03:43
by: Jor |
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