An employee connected a hose to the valve connector on a mini-tote. As the employee was turning the handle of the valve to allow potassium thiosulfate fertilizer to flow through the hose, the connection burst from a suspected chemical reaction between the fertilizer and an unknown substance. The valve broke into pieces and the fertilizer spilled, causing chemical burns to the employee's eyes and right wrist. The employee also sustained a displaced fracture to a finger.