where to buy KNO3 and KH2PO4 - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 06-03-2008, 08:22 PM Thread Starter
 
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where to buy KNO3 and KH2PO4

Does anyone know the secret for finding bulk KNO3 and KH2PO4 locally ?

Hydrophonics shops have no clue what I am talking about and agricultural supply places I have found sell Ammonium sulphate and "super triple phosphate" whatever that is. (apparently derived from H3PO4 -Phosphoric acid)

I have big tanks and am getting tired of buying pounds of the stuff in baggies over the net. I want the 20-50 lb bags

thanks,

-jd
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post #2 of 6 (permalink) Old 06-03-2008, 09:22 PM
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Are you in Santa Barbara, CA?

Agri Turf right off Las Postias exit on HWY 101 sells "KEEP" and KNO3 in 50lb bags.
22-25$ a bag etc

Regards,
Tom Barr




Regards,
Tom Barr
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post #3 of 6 (permalink) Old 06-04-2008, 01:07 AM Thread Starter
 
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Yes, I am in Santa Barbara.

I talked to Agri Turf this afternoon. the person I talked to did not seem to know if they had either of those. knowing a brand name definitely helps so I will stop by and ask since I live in that part of town.

What about Phosphate ? From reading a MSDS I learned that super triple phosphate is CaHPO4. Can't imaging with Santa Barbara water that I would want to be adding more calcium...

thanks,

-jd
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post #4 of 6 (permalink) Old 06-04-2008, 01:43 AM
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Go down there in person, tell them you want KNO3 and KH2PO4, or monobasic potassium phosphate. "KEEP" is the brand name, they use it on turf for

They sell it.
I've bought it there.
50lb bags

Go down there in person.


Regards,
Tom Barr




Regards,
Tom Barr
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post #5 of 6 (permalink) Old 06-09-2008, 04:10 AM Thread Starter
 
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Finally made it to Agri-Turf. I got the KNO3 $37 for 50lb bag; champion brand.

They were out to KH2PO4 - he says the only sell 4-5 bags a year and someone just bought their last bag. Apparently it works a a fungicide.

owner is a really nice guy and we had a long talk about what might work for phosphate and how the stuff is made. He is ordering more KH2PO4 and warned me it will be expensive since his costs have recently doubled or more.

-jd
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post #6 of 6 (permalink) Old 06-17-2008, 10:25 PM Thread Starter
 
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KH2PO4 unavailable

Agri-Turf now tells me that KH2PO4 is currently unavailable from any of their suppliers. Any other ideas ?

-jd
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