The WiZard is In
International Hazard
Posts: 1617
Registered: 3-4-2010
Member Is Offline
Mood: No Mood
|
|
A small scale fluorine generator
A weekend project.
Presumable one could scale it down.
Up.
Murray, Osborne and Kircher
Carbon-Anode Fluorine Cell [2000 Amperes]
p. 249-254
    
|
|
|
dann2
International Hazard
Posts: 1523
Registered: 31-1-2007
Member Is Offline
Mood: No Mood
|
|
Nice one. This should cure my mother in law problems.
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
I'm going to sooo try this (NOT)!
And the 2,000 A makes it all soooo much more attractive too! 
[Edited on 9-8-2011 by blogfast25]
|
|
|
The WiZard is In
International Hazard
Posts: 1617
Registered: 3-4-2010
Member Is Offline
Mood: No Mood
|
|
Extracted from —
THE NOXIOUS VAPOURS OF MANURE WORKS.
BY JOHN MORRISON.
The Journal of the Society of Chemical Industry.
April 30,1891
-------
This implies that on the Tyne alone, in default of condensing plant, four or live
tons of hydrofluoric acid would be discharged into the atmosphere every week.
Such a fact was, in all conscience, sufficiently serious to demand the most
earnest consideration, and the surprising thing was that it escaped legislative
supervision so long.
[Downwind brick work must have been nice and clean!]
----------
The noxious vapours, however, of the registered manure works, which are under
the charge of and can be quantitatively determined by the Government
inspectors, must be clearly distinguished from the powerfully offensive and
searching stinks peculiar to the boiling of bones and treatment of blood, fish and
flesh offal, &c. &c. in non-registered premises. These are wholly under the care
of the local sanitary authorities, and with them I have at present of course
nothing to do.
The stifling fumes, evolved during the treatment of mineral phosphates with
sulphuric acid consist chiefly of fluoric, carbonic, and sulphuric acids,
intermingled with silica tetrafluoride and much steam, and when these raw
phosphates are treated in conjunction with animal matters various oily vapours of
more or less unpleasant character are likewise produced.
There is no difficulty whatever about the arrest of these acid vapours, of which
the fluoric acid is the chief. With sufficient time and space to react upon
themselves, they will peacefully subside of their own accord. The sole difficulty
lies in their arrest within reasonable space and limited time.
As calcic fluoride (CaF2,), fluorine occurs in most mineral phosphates, but in
some, and those singularly the phosphates in largest present use, much more
plentifully than in others. As hydrofluoric acid, the addition of sulphuric acid sets
this fluorine free. Without silica at hand, the hydrofluoric acid escapes into the
air. With silica present, turning silicic tetrafluoride is formed. This also passes
into the, atmosphere, but only to be decomposed in presence of water into
gelatinous silica and hydroflurosilicic acid.
1. CaF2 + H2S04 = 2 HF + CaS04
2. 4 HF + SiO2 = 2 H2O + SiF4
3. 3 SiF4 2H2O = 2 SiO2 + 2(HFSiF4)
Attachment: Chem Downwind Manure Works.txt (17kB)
This file has been downloaded 657 times
|
|
|
franklyn
International Hazard
Posts: 3026
Registered: 30-5-2006
Location: Da Big Apple
Member Is Offline
Mood: No Mood
|
|
The cell described can be assumed to be entirely resistive devoid of reactive elements
so power factor is equal to one. 250 amperes at a nominal 9 volts is 250 x 9 = 2250 VA
or 2250 watts ( 2.25 kilowatt / hr ) , just a third more than the output of a hairdryer
( 4/3 x 1650 watt ).
If storage can be managed , 1/3 pound per hour production for experimental use may
seem excessive. As Wizard has mentioned this setup can certainly be reduced.
Sourcing an appropriate tranformer for a 1/5 power supply on Ebay _
http://cgi.ebay.com/115V-13-5V-60-Amp-High-Current-Power-Tra...
Reduction by a factor of 25 will yield 2/3 pound (~ 316 gm ) in a 24 hour period.
The resulting current demand of 10 amps is well within the capability of any
common DC 12 volt computer power supply.
@ The WiZard is In
The article trailing this one you posted looks interesting also , can you post that too.
.
[Edited on 10-8-2011 by franklyn]
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
Wizard:
If you're interested in 'stinky' stories, look up 'gallygoo' (Widnes near Warrington and environs) and drill deeper. How we once lived!
[Edited on 10-8-2011 by blogfast25]
|
|
|
The WiZard is In
International Hazard
Posts: 1617
Registered: 3-4-2010
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by blogfast25  | Wizard:
If you're interested in 'stinky' stories, look up 'gallygoo' (Widnes near Warrington and environs) and drill deeper. How we once lived!
[Edited on 10-8-2011 by blogfast25] |
On my things to do list. Thanks.
djh
----
Quarterly Journal of the Royal Statistical Society, Volume 11
Royal Statistical Society (Great Britain)
Report of a Committee of the Council of the Statistical Society of London, consisting of
Lueut.-Colonel W. H. SYKES, V.P.R.S., DR. GUY, and F. G. P. NEISON, ESQ., to investigate the
State of the Inhabitants and their Dwellings in Church Lane, St. Giles's.
[Read before the Statistical Society of London, 17th January, 1848.]
The back yards are 5 or 6 ft. square, with broken pavement, and most of them have
accumulations of filth and night-soil, and the drainage from them (which is
superficial) runs through the passage of the houses into the street. The back rooms,
most of which are lighted by only one small window, patched with paper and rags,
open by low doors into this pestiferous area. These yards are, in most instances,
without privies, and in the few cases where they do exist, they are in a most
dilapidated condition. In the houses furnished with a waterbutt, this vessel is to be
found in the yard.
..... House, No. 4.-Two Parlours, on Ground Floor.
Size of front room, 14 ft. long, 13 ft. broad, 6 ft. high ; size of windows, 3 ft. 4 in. by
2 ft. 2 in. Size of back-room, 11 ft. 2 in. long, 9 ft. 4in. broad, less than 6 feet in height;
1 window with 4 whole panes; rent paid, 5*. 6d. weekly for 2 rooms; under-rent paid,
3d. per night each adult; time occupied, 2 years; number of families, 5 ; comprising 4
males above 20, 9 females above 20, three of them single, 2 males under 20, 4
females under 20; total 19. Number of persons ill, 2; deaths in 1847, 1, measles.
Country, Irish; trade, dealers and mendicants. State of rooms and furniture, bad,
dirty; state of windows, 6 whole panes, and 10 broken. Number of beds, 6; number of
bedsteads, 6.
The door of this room opens into the yard, 6 feet square, which is covered over
with night soil; no privy, but there is a tub for the accommodation of the inmates; the
tub was full of night soil. These are nightly lodging-rooms. In the front room one girl,
7 years old, lay dead, and another was in bed with its mother, ill of the measles.
|
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
