....and it's late. If I want to soak my orchids in Physan 20 solution and
need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
50% Physan for 5 liters? (I can get 50% benzalkonium chloride here which
should be relatively similar, if not equal, to Physan -
http://en.wikipedia.org/wiki/Benzalkonium_chloride)

--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

Reka wrote:
...and it's late. If I want to soak my orchids in Physan 20 solution and
need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
50% Physan for 5 liters?

converting 1 ga into 3.8L gives you a concentration of 10ml to 3.8l or
..5262ml 100% physan to 1L, time that by five, devide it by .5 (solution
precentage) you get 5.2631ml

or a hefty teaspoon of the 50% stuff

Yep I'm board

Jack

In article . com,
says...
~
~Reka wrote:
~ ...and it's late. If I want to soak my orchids in Physan 20 solution and
~ need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
~ 50% Physan for 5 liters?
~
~converting 1 ga into 3.8L gives you a concentration of 10ml to 3.8l or
~.5262ml 100% physan to 1L, time that by five, devide it by .5 (solution
~precentage) you get 5.2631ml
~
~or a hefty teaspoon of the 50% stuff
~
~Yep I'm board
~
~Jack
~
~
But does that take into consideration that Physan is 20% while my solution
is 50%?
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

yes

yes
but not for the chemical difference

Forgive me for being picky, but were those US or imperial gallons?

On Wed, 19 Apr 2006 22:24:25 +0200, Reka wrote:

...and it's late. If I want to soak my orchids in Physan 20 solution and
need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
50% Physan for 5 liters? (I can get 50% benzalkonium chloride here which
should be relatively similar, if not equal, to Physan -
http://en.wikipedia.org/wiki/Benzalkonium_chloride)

--
Dave Gillingham
------------------------------------------------------------------------------
To email me remove the .private from my email address.

In article ,
says...
~Forgive me for being picky, but were those US or imperial gallons?
~
~On Wed, 19 Apr 2006 22:24:25 +0200, Reka wrote:
~
~...and it's late. If I want to soak my orchids in Physan 20 solution and
~need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
~50% Physan for 5 liters? (I can get 50% benzalkonium chloride here which
~should be relatively similar, if not equal, to Physan -
~http://en.wikipedia.org/wiki/Benzalkonium_chloride)
~
~--
~Dave Gillingham
~------------------------------------------------------------------------------
~To email me remove the .private from my email address.
~
Hey, Dave! Welcome back!

US gallons, of course! Are there any other gallons? grin ;-)
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

In article .com,
says...
~yes
~but not for the chemical difference
~
~
What do you mean about the chemical difference?
I need to know how much 50% Physan to substitute for 20% Physan, and
convert from Gallons to liters...
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

I use benzalkonium chloride at work (disinfecting handwash gel, the
alternitive to alcohol) there are different parts of the mix of
compounds in physan that work on different organisms, what I mean is
that it should work, but maybe better for bacteria than algea ( will a
mircobiologist or organic chemist jump in here

If you read the techinical data it should explain the mechinism of
action, which should go into what it is approved for use on and what
it has been tested on....

I do know that it will make pennies very shinny but then prone to
corrosion later.

Jack

1) Use 2/5 of the amount of 50% to equal the 20% stuff.

2) 3.8 liters per gallon is good enough.

3) One teaspoon is about 5 ml

Therefore, if 1 teaspoon of 20% per gallon is your target, then you use 2 ml
/ 3.8 l = about 1/2 ml/liter of the 50% stuff.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Artwork, Books and Lots of Free Info!


"Reka" wrote in message
.. .
In article .com,
says...
~yes
~but not for the chemical difference
~
~
What do you mean about the chemical difference?
I need to know how much 50% Physan to substitute for 20% Physan, and
convert from Gallons to liters...
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

In article ,
says...
~1) Use 2/5 of the amount of 50% to equal the 20% stuff.
~
~2) 3.8 liters per gallon is good enough.
~
~3) One teaspoon is about 5 ml
~
~Therefore, if 1 teaspoon of 20% per gallon is your target, then you use 2 ml
~/ 3.8 l = about 1/2 ml/liter of the 50% stuff.
~
~
Okay, so we are talking about 2tsp./gallon 20%, 1 tsp./5 liters 50%.

Do you guys use less than 2 tsp. gallon?
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

I use one tsp/gal.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Artwork, Books and Lots of Free Info!


"Reka" wrote in message
.. .
In article ,
says...
~1) Use 2/5 of the amount of 50% to equal the 20% stuff.
~
~2) 3.8 liters per gallon is good enough.
~
~3) One teaspoon is about 5 ml
~
~Therefore, if 1 teaspoon of 20% per gallon is your target, then you use 2
ml
~/ 3.8 l = about 1/2 ml/liter of the 50% stuff.
~
~
Okay, so we are talking about 2tsp./gallon 20%, 1 tsp./5 liters 50%.

Do you guys use less than 2 tsp. gallon?
--
--
Reka

This is LIFE! It's not a rehearsal. Don't miss it!
http://www.rolbox.it/hukari/index.html

On Thu, 20 Apr 2006 16:53:35 +0200, Reka wrote:

In article ,
says...
~Forgive me for being picky, but were those US or imperial gallons?
~
~On Wed, 19 Apr 2006 22:24:25 +0200, Reka wrote:
~
~...and it's late. If I want to soak my orchids in Physan 20 solution and
~need 2 tsp. of 20% Physan per gallon of water,how many tsp. do I need of
~50% Physan for 5 liters? (I can get 50% benzalkonium chloride here which
~should be relatively similar, if not equal, to Physan -
~http://en.wikipedia.org/wiki/Benzalkonium_chloride)
~
~--
~Dave Gillingham

Hey, Dave! Welcome back!

US gallons, of course! Are there any other gallons? grin ;-)
--
Thanks for the welcome. I note your absence from postings for a week or so. Did
you go away for your Spring break?

A few pilots have found, to their sad cost, that US gallons are smaller than
imperial ones. I guess that just goes to show one should read the manual *very*
carefully.
Dave Gillingham
------------------------------------------------------------------------------
To email me remove the .private from my email address.

Reka, I use a little less than a teaspoon in the 1 quart spray bottle. I
have never dipped & soaked the entire plant. I have a couple of plants
that I am going to experiment on.
I browsed through this webpage & noticed that just for the different types
of orchids they call for different measures? Quite an in depth site.
http://www.physan.com/index.html
--
Cheers Wendy

Remove PETERPAN for email reply

Reka wrote:
In article ,
says...
~1) Use 2/5 of the amount of 50% to equal the 20% stuff.
~
~2) 3.8 liters per gallon is good enough.
~
~3) One teaspoon is about 5 ml
~
~Therefore, if 1 teaspoon of 20% per gallon is your target, then you
use 2 ml ~/ 3.8 l = about 1/2 ml/liter of the 50% stuff.
~
~
Okay, so we are talking about 2tsp./gallon 20%, 1 tsp./5 liters 50%.

Do you guys use less than 2 tsp. gallon?
--

well you won't kill them, if it works it works and if not, hope you got
some physan (ps anybody know where I can get some shipped to alaska)

If it does work let us know.

Jack