Abstract: Systems and methods for transporting and dispensing hazardous chemicals are described. A container is described that is resistant to the detrimental effects of the chemicals. The container comprises a first shell configured to contain a corrosive chemical, and an optional second shell surrounding the first shell and a spacer that maintains separation of the first and second shells. A valve provides access through which the corrosive chemical is discharged under pressure from the container. An interstitial space is provided between first and second shells. In some of these embodiments, the spacer seals the interstitial space. The second shell is configured to contain any of the corrosive chemical that escapes the first shell. The container may be repeatedly charged, transported, mounted on a dispensing platform from which measured amounts of the chemicals are discharged before the container is returned for clearing and recharging.

Abstract: A portable holding and mixing tank is provided with a valving assembly, the activation of which responsively enables substantial simultaneous flow of each dissimilar liquid contained within the respective holding compartments to a manifold assembly. The substantial simultaneous flow of each dissimilar liquid to the manifold assembly thereby minimizes (if not eliminates entirely) the possibility that incorrect mixing ratios of the dissimilar chemicals will occur. The manifold assembly mixes the liquids and discharges the mixed liquid through a meter to a transfer conduit. As such, the mixed liquids may be transferred to a storage tank (for example, a storage tank associated with agricultural spraying equipment).