Do dry ferts expire? - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 01-01-2017, 11:27 PM Thread Starter
Planted Tank Enthusiast
 
zainey_04's Avatar
 
PTrader: (14/100%)
Join Date: May 2011
Location: Falls Church, VA
Posts: 513
Do dry ferts expire?

I have dry ferts from my last go at planted tanks about 5 years ago. I'm back in the addiction and still have the dry ferts from 2011. They were sorted is sealed mason jars. Anyone know of they're still usable?

zainey_04 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 01-01-2017, 11:56 PM
Planted Tank Obsessed
 
John Wong's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2015
Posts: 375
Reusable :
Kno3
Kh2po4
K2so4
Gh booster

Not sure
Micro
Iron

As long as they were not exposed to direct heat, sunlight, moisture etc they should be reusable. Most chemical we use are quite stable. Some chemical such as kh2po4 and kno3 decompose if expose to heat above 400 degree Celsius. Radiation from sunlight might cause some reaction. Not sure about iron and micro though. Ferrous may be oxidised to ferric?? Need to do some extensive study about their stability . Maybe someone can give more detail.


Sent from my MX4 using Tapatalk
John Wong is offline  
post #3 of 3 (permalink) Old 01-02-2017, 12:16 AM Thread Starter
Planted Tank Enthusiast
 
zainey_04's Avatar
 
PTrader: (14/100%)
Join Date: May 2011
Location: Falls Church, VA
Posts: 513
Thanks for the reply and helpful info. Everything was stored in a cool dry place away from any direct or indirect sunlight.
Quote:
Originally Posted by John Wong View Post
Reusable :
Kno3
Kh2po4
K2so4
Gh booster

Not sure
Micro
Iron

As long as they were not exposed to direct heat, sunlight, moisture etc they should be reusable. Most chemical we use are quite stable. Some chemical such as kh2po4 and kno3 decompose if expose to heat above 400 degree Celsius. Radiation from sunlight might cause some reaction. Not sure about iron and micro though. Ferrous may be oxidised to ferric?? Need to do some extensive study about their stability . Maybe someone can give more detail.


Sent from my MX4 using Tapatalk

Sent from my Nexus 6P using Tapatalk
zainey_04 is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome