Expansion continues at the Hooker Electrochemical Company's Tideflats plant in August, 1951. Steel reinforcing and footing for a new building are being installed. Hooker began operations in Tacoma in 1929 and constantly remodeled and expanded in order to handle their growing business. Along with Pennsylvania Salt Manufacturing Company of Washington, Hooker supplied the Pacific Northwest pulp and paper industry with caustic soda and chlorine. Hooker tank cars can be seen in the photograph's background; they were one method of shipping Hooker products to their customers.

Hooker Electrochemical Co. (Tacoma); Chemical industry--Tacoma--1950-1960; Industrial facilities--Tacoma--1950-1960; Railroad tank cars--Tacoma--1950-1960;

Sunnen Hauling Company was owned by Joe Sunnen. There were two facilities in Washington, one in Tacoma and one in Seattle. The company's Tacoma site was at 301 East 25th Street; they were fully insured and bonded. View of Sunnen Hauling Company installing a new top on liquid caustic storage tank at Hooker Electrochemical Company; two Lorraine cranes in restricted quarters put eight ton top on tank (T. Times, 1/30/49, p. 17).

Shipping--Tacoma; Moving & storage trade--Tacoma; Storage tanks--Tacoma; Pulleys; Hoisting machinery; Sunnen Auto Freight & Heavy Hauling Co. (Tacoma); Hooker Electrochemical Co. (Tacoma); Chemical industry--Tacoma--1940-1950;

Exterior of new anhydrous ammonia plant at Hooker Electrochemical, completed in May of 1952. The ammonia produced here was used by the Northwest's paper and pulp mills and fertilizer and explosive manufacturers. It was shipped entirely by tank car, each car held 26 tons. On completion of the plant, the entire production of 40 tons every 24 hours was already contracted for. The plant was slated for an immediate $6 million dollar expansion that would increase production by half. (TNT 10-19-1952)

Hooker Electrochemical Co. (Tacoma); Chemical industry--Tacoma--1950-1960;

Exterior of new anhydrous ammonia plant at Hooker Electrochemical, completed in May of 1952. Ammonia in gaseous form is composed of three parts of hydrogen to one of nitrogen. In the plant, the hydrogen and nitrogen are mixed in the proper proportion, subjected to 5,000 pounds to a square inch pressure and then sent to a converter and combined to make ammonia. The ammonia is placed in storage tanks outside the plant to await shipment by tank car. (TNT 10-19-1952)

Hooker Electrochemical Co. (Tacoma); Chemical industry--Tacoma--1950-1960;