There is a logical acid (hydroxyacetic acid) and a decent rinse agent surfactant, that are both available as a powder. I suppose you might be able to
compound them and keep them powdered, but I have never personally tried. I can however state, that the powdered product WOULD be a hazardous material, and would garner some appreciable expense in a suitable shipping package and shipping upcharge expense (UPS Ding-me). Whether that would offset the expense of shipping the product with enough water to soluble-ize it with a suitable fragrance additive is doubtful.
People sometimes think that chemical manufactures make liquids, just so they can sell water at a tremendous profit. Yes, while it may be the case in certain circumstances, the truth is, it's almost never the case.
Here are
some of the legitimate reasons why your liquid products have water, or are otherwise a liquid.
1) Water is added to make the product non-hazardous.
2) Water is added in sufficient quantity to make the product a stable mixture.
3) Water is added, so the user won't have to heat and mix the product for an inordinate time or use impractical methods/equipment to create an end use dilution.
4) Because the components, without water, would be a thick, goopy paste that has very poor handling characteristics.
5) Because the process to manufacture requires a certain amount of water, and it would be too expensive to dehydrate it, on top of the problems listed above being introduced.
Of course, none of this precludes a chemical vendor from actually putting together a regulated mixture, then ignoring these regulations in order to provide a product.
Yes, I see this quite often with solvent products coming into California from other states, ignoring our VOC regulations. As a Distributor in California, we lack the "luxury" of being able to participate in these transactions.