pH Down Phosphoric Acid 85% (500ml) 16oz

Phosphoric acid (AKA orthophosphoric acid or H₃PO₄) is a mineral inorganic acid that can be used as a ph adjuster for Hydroponic nutrient solutions.

Dosage: (for pH:7 Rain/RO/Soft Tap Water) 

To lower pH by a Factor of 1

1mL/10L of water

100mL/1000L

Phosphoric acid can also be completely metabilised by plants and will also act as a nutrient

If this does come into contact with your skin undiluted, please rinse under cold water for 5-15 minutes. It can stain coloured clothes undiluted!

If you would like to download the MSDS/SDS for this product click here (Phosphoric Acid 96% MSDS)

WARNING - This product is a high strength acid. 

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