Jump to content

  • Log in with Facebook Log in with Twitter Log In with Google Sign In »
  • Register Now!
Grass Outdoors Shade Purple Orange Blueberry Watermelon Apple Banana Strawberry Chocolate
WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community. - Login to remove this message
Massive Bloom
Seedsman cannabis seeds seedbank marijuana

Photo

DIY buffering solution for pH stability

- - - - - buffer buffering pH DIY potassium phosphate

  • Please log in to reply
1 reply to this topic

#1
alienpuppy

alienpuppy

    Vegetating

  • Members
  • PipPip
  • 43 Posts:
  • Gender:Not Telling
  • Location:B5, page 169
  • Cannabis Use:Medicinal
  • Fav. Heads:None

has anyone made their own buffering solution before to help keep hydro pH level stable for longer? couldn't find any threads here about it, or not with the word buffer in the title anyway, and would love to hear other peoples thoughts about making and applying such a solution

  

I've been reading about them for the past few hours but it was only when I came across a comment in the following thread that an easy-to-follow recipe became apparent and within reach of regular joe me (chemistry isn't in my toolbelt):

https://www.research...r_005M_and_pH_6

It's a long thread but here is the specific comment that caught my interest, about 1/3 of the way down:

 

Christian Igunbor · University of Benin

Was puzzled by this until I recently did one and discovered its quite easy to make practically than it is easy to understand theoretically.

 

To make a 0.05M potassium buffer of pH 6.0

 

get a monobasic and dibasic of potassium phosphate and calculate as thus:

monobasic anhydrous (KH2PO4) mol. weight = 136.09g

dibasic anhydrous (K2HPO4) mol. weight = 174.18g

1M of KH2PO4 =

136.09g in 1litre of distil H2O

 or

68.05g in 500ml of disti H2O

 or

17.01g in 125ml of distil H2O    etc

1M of K2HPO4 =

174.18g in 1litre of distil H2O

 or

87.09g in 500ml of disti H2O

 or

21.77g in 125ml of distil H2O etc

To make the Buffer you can use this

1M of KH2PO4 = 32.0 ml
1M of K2HPO4 =18.0 ml

 

Both will be 40ml, add 960ml of distil H2O to make it up to 1litre (this will make its concentration to 0.05M)

putting tall above will give you a buffer solution of ph 6.6 which you can reduce the ph to 6.0 by adding 0.5M phosphoric acid at interval of 0.5ml.

I hope you get the cue.

 

Is this the sort of thing Advanced Nutrients uses as their 'pH Perfect'?

pretty interesting stuff either way i think


  • 0

Say thanks with some bits:  1Ed71abMUAJ3q3XBQzYzSzJRydR58kKeT1

#2
_Puff_Tough_

_Puff_Tough_

    Stoned

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 880 Posts:
  • Gender:Male
  • Interests:THE CANNABS AND TERPS ofcourse !Those who profit off of the misery of peaceful people are a prime example of what is wrong with this twisted world.
  • Location:Nirvana
  • Cannabis Use:Spiritual
  • Fav. Type:Hashish, Oil Concentrates
  • Fav. Heads:100% Organic
  • Fav. Lighting: HIDs
No they use highly chelated macro/micro nutrients...
  • 0
*** Warning - Cannabis causes severe paranoia in prohibitionist countries *** OVERGROW THE FUCKING GOVERNMENT !
Every individuals interaction with cannabis is such that we all have a unique understanding of its desires and behaviors and hence often growers give what appears to be two polar opposite solutions to a growers plant issues..... Some lack biological/botanical understanding and have a limited vocabulary to describe what was merely their understandings of the interactions they've had with the plant. Sometimes successes were'nt instantiated by the choices you made in your gardens though and what you thought may have assisted you in reaching your goals didnt, and hence there are many roads travelled.... remember that. TIC-TOC TIC-TOC...... If you use disco lights (leds) I will not provide you with any advice whatsoever.

Disclaimer:
I am occasionally a megalomaniac with delusions and psychosis so anything i claim is most likely totally utter nonsense, nothing i say can and will be used against me because i am totally fabricating anything mentioned......... Fuck you very much, with love.
***So.... some people in oz and around the world are legally entitled to grow, if you are asking for grow advice i presume you are legally entitled to do so. Contact me via messenger for any cannabis grow related concerns, i will happily assist.***
I habitually skim over threads. If it appears i have poor attention to detail.......... Chronmasta's legacy lives on.

Sent from my 3rd_Eye Using jizz-6.9.69





Also tagged with one or more of these keywords: buffer, buffering, pH, DIY, potassium phosphate

Sol-Sense 315W Smart LEC Digital Ballst
Australian Advanced Nutrients
WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.