Source for sodium nitrate and sodium phosphate.

[ss88]

Hello, looking for first hand experience on a quality source for nitrate and phosphate. Would prefer to use sodium nitrate to avoid water chemisty issues with excess potassium. I recently purchased these products from Amazon, but before I commence with use I figured it best to ask others for prior experience.
Trisodium Phosphate
Sodium Phosphate Dibasic
Sodium Nitrate
All are listed as food grade. Only concern I have is really with the Sodium Nitrate by Modernist.
According to the COA it shows some heavy metal like copper.
Perhaps im reading this incorrect.


Spec/SDS/COA/Misc

 

[BroccoliFarmer]

I have used this sodium nitrate without problem for 9 months.

 

[Randy Holmes-Farley]

Hello, looking for first hand experience on a quality source for nitrate and phosphate. Would prefer to use sodium nitrate to avoid water chemisty issues with excess potassium. I recently purchased these products from Amazon, but before I commence with use I figured it best to ask others for prior experience.
Trisodium Phosphate
Sodium Phosphate Dibasic
Sodium Nitrate
All are listed as food grade. Only concern I have is really with the Sodium Nitrate by Modernist.
According to the COA it shows some heavy metal like copper.
Perhaps im reading this incorrect.


Spec/SDS/COA/Misc

It says zero for copper, doesn’t it? Not a detected level?

Food grade requires some heavy metal testing and limits, which is a main reason to pick it.

 

[KStatefan]

That is the same Sodium Nitrate that I have used.

 

[ss88]

That is the same Sodium Nitrate that I have used.

The product i posted or the one the other person posted.

It says zero for copper, doesn’t it? Not a detected level?

Food grade requires some heavy metal testing and limits, which is a main reason to pick it.

Yes in the upper section it has 0 for everything but sodium nitrate. In the bottom section it list other heavy metals like copper at a concentration max of 50ppm.

 

[KStatefan]

The product i posted or the one the other person posted.

The one you posted but I purchased the 2 oz size

 

[Randy Holmes-Farley]

The product i posted or the one the other person posted.


Yes in the upper section it has 0 for everything but sodium nitrate. In the bottom section it list other heavy metals like copper at a concentration max of 50ppm.

That is a specification maximum, not an indication that it has any. It’s no concern, imo, and Is certainly not more concerning than a material that has no mention of a specific copper specification.

 

[dstockwell]

Thanks for the info.

 

[ss88]

Thank you!