- -20%
![](https://static1.cultureindoor.com/49487/hydropassion-3-acid-down-ph-1l-regulates-and-lowers-the-ph.jpg)
HESI pH Minus is a mineral acid that allows you toadjust the pH of your nutrient solution in hydroponics and on coco fiber.
HESI pH Minus is a mineral acid that allows you toadjust the pH of your nutrient solution in hydroponics and on coconut fibre.
Composition:
Product to the NF U 42-004 standard
Orthophosphoric acid H3PO4 14.5M : 59%
Number of "hydrogen" equivalents : 19.26 kg/100Kg of product
Phosphoric anhydride (P2O5) soluble in water : 42.5% (m/m)
Density : 1.42
Starting crystallization temperature : .< -75°C