Aerial view of Pennsylvania Salt Manufacturing Company. The Tacoma plant covers nearly 40 acres of tideflats on the Hylebos waterway. This location was chosen in 1929 because of favorable electric power rates, availability and quality of water, access to water, rail and motor transportation and its central location for its principal customers, the pulp and paper mills. The name of the corporation was changed to Pennwalt Corp. prior to the merger of Pennsalt and Wallace & Tierman, Inc. (TNT, 11/29/1968)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Factories--Tacoma--1940-1950; Chemical industry--Tacoma--1940-1950; Hylebos Waterway (Tacoma); Waterfronts--Tacoma--1940-1950;

Pennsylvania Salt Manufacturing Company of Washington celebrated its parent firm's 100th anniversary. Photographs and products are displayed for guests to view during the open house held in the Tacoma plant. (TNT 8-6-50, A-9) TPL-6575

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Company of Washington celebrated its parent firm's 100th anniversary. Information about the company's processes was presented on large display boards. (TNT 8-6-50, A-9) TPL-6576

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960;

Little girls, dressed in their finery, stroll into the Pennsalt open house on August 8, 1950. They are accompanied by Marie Wood, in black, who is the wife of chief Pennsalt chemist, Davis M. Wood. The Pennsylvania Salt Manufacturing Company of Washington is helping to celebrate its parent company's 100th anniversary.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Company of Washington held an open house on August 8, 1950, to help celebrate Pennsalt, its parent firm's, 100th anniversary. Visitors could walk through the 40 acre plant and view displays of Pennsalt's history and product development. This photograph shows notebooks indicating new products developed through Pennsalt's research and development laboratories which include complex fluorides and sulfur hexafluorides. Despite its name, Pennsalt does not manufacture common salt; it produces a multitude of chemical products from raw salt.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Company. An exterior view showing a cooling system at the rear of the building. Refer to D28,041-2 for a more detailed view of the cooling system.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1940-1950; Factories--Tacoma;

Tall tanks are shown in the interior of the Tacoma Pennsylvania Salt Manufacturing Company. Penn Salt began a $172,000 plant expansion program in 1951 where the biggest investment was in new equipment in the plant's chlorine and caustic soda departments. Some building modification was also included. Ordered by Penn Salt for their annual report. (TNT, 3/30/1951)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960;

Transport tanks are shown loaded on railroad cars at the Tacoma Pennsylvania Salt Manufacturing Company's spur. President Fred C. Shanaman announced in April 1951 that the capacity of the Tacoma plant for production of chlorine and caustic soda was being increased 30 percent. (TNT, 4/26/1951)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960; Railroad tank cars--Tacoma--1950-1960; Railroad sidings--Tacoma;

The display of seven canisters of Flake Caustic Soda produced by the Pennsylvania Salt Manufacturing Company was taken on August 27, 1951. Flake Caustic Soda apparently was sold in several different size metal cans; only the smallest can has a handle for easy carrying. Caustic soda, also known as sodium hydroxide, is a white brittle solid used especially in making soap, oils, rayon and paper. It can also be in liquid or flake format, as in this particular display.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960; Containers; Minerals--Tacoma;

Workers at the Pennsylvania Salt Manufacturing Co. of Washington's Taylor Way plant appear to be positioning barrels to be filled with Pennsalt chemical products in a photograph taken on October 10, 1951. Rollers are set in the floor to then move the filled barrels to the next point in the assembly line. Enormous pipes seem to hang from the ceiling; large scales can be spotted behind the barrels.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960; Industrial facilities--Tacoma--1950-1960; Barrels--Tacoma; Pipes; Scales;

Interior exposure of Pennsylvania Salt plant. Two employees of the Pennsylvania Salt Manufacturing Company of Washington appear to be preparing to fill the large tanker car full of liquid chlorine in a photograph taken in October, 1951. Pennsylvania Salt (Pennsalt) was one of Tacoma's largest chemical plants, beginning operations on the Tideflats in the late 1920's. Major products were caustic soda and chlorine; in liquid form, chlorine was especially valued as sterilizing agents for water purification and sewage treatment. TPL-10066

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Railroad tank cars--Tacoma--1950-1960; Chemical industry--Tacoma--1950-1960; Industrial facilities--Tacoma--1950-1960;

Example of General American Evaporators in place at Pennsylvania Salt. Ordered by General American Transport Corp., NY, NY, Harold Jacoby. Capacity of the Tacoma plant for production of chlorine and caustic soda was being increased 30%. Pennsalt had been granted a federal certificate of necessity for $445,450. As of March 1951, power hearings brought out the fact that chlorine and caustic sodas were ranked among the top poriority defense items, being used in aircraft manufacture and at the Hanford A-bomb plant, as well as suppllying local chemical plants and domestic needs. (TNT, 3/30/1951; 4/26/1951)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Co. of Washington; yard employees' Christmas party. The lone female at this gathering laughs out loud while the man behind her seems to be offering to help her with her soup. The Pennsalt plant manufactured chemicals used in industrial processing, sanitation and also insect irradication. The company later changed its name to Penwalt.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960;

Aerial view of Pennsylvania Salt Manufacturing Co. Storage tanks dot the area around the plant and one of the Pennwalt barges can be seen being maneuvered to the dock by two tugs. The large corporation, now known as Pennwalt, had its beginnings in 1850 when five Philadelphia Quakers organized the Pennsylvania Salt Manufacturing Co. and constructed a plant to produce lye and alkaline salts of soda from natural salt. Today Pennwalt, with its headquarters in Philadelphia, is a worldwide manufacturer of chemicals, health products and precision equipment. The chlorine produced by the company is used in paper and pulp manufacturing, but also in water purification, bleach and the manufacture of adhesives. Caustic soda is also used in pulp production. ("South on the Sound" by Murray Morgan)

Chemical industry--Tacoma--1950-1960; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma);

E.L. Cliffe (L), plant superintendent, and Col. Edward Schmitt, commanding officer of the Army Personnel Center, Ft. Lewis, met with Pennsalt employee William Otto at the company's facilities on November 10, 1954. Col. Schmitt toured the plant in preview of industry tours for military personnel on Armed Forces Appreciation Day, November 30th. Mr. Otto shows the two men the machinery used in making corrosion-resistant molds used in the manufacture of chlorine and caustic by Pennsalt. Other companies, including Puget Sound Plywood, Brown & Haley, Heidelberg Breweries and Hooker Electrochemical, would also be offering tours for the military on Armed Forces Appreciation Day. (TNT 11-21-54, B-11)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960; Machinery; Cliffe, E.L.; Schmitt, Edward; Otto, William;

Tanks are placed in lines in one of the buildings of Pennsylvania Salt Manufacturing Company's Tacoma plant. A workman is seen attaching parts to the tanks between the rows.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960;

The Pennsylvania Salt Manufacturing Co. of Washington began operations in their Taylor Way plant in June, 1929. Then known as Tacoma Electrochemical Company, they produced liquid chlorine, caustic soda and sodium hypochlorite for the area's pulp mills. Previously, mills had to import these products from the East. A plentiful supply of low-cost electricity, pure water, moderate climate, and good supply of labor provided incentive for Pennsalt and other chemical plants to locate in Tacoma. View of Pennsalt worker turning bolt with a wrench; photograph was taken in October, 1951.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960; Industrial facilities--Tacoma--1950-1960; Machinery; Pipes;

General American Evaporators shown in evaporator room at Pennsylvania Salt. Penn Salt began a $172,000 plant expansion program in March 1951. The biggest investment was to be in new equipment in the plant's chlorine and caustic soda departments. Some building modification was also included. The expansion was necessitated by both increased normal demands and those spurred by war production. (TNT, 3/30/1951)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Company. The exterior of one of the buildings at the plant is pictured on June 7, 1947. The roof line includes elongated V shapes: the shorter side is translucent to allow light into the factory during daylight hours.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1940-1950; Factories--Tacoma;

Pennsylvania Salt Manufacturing Company. Two men stand by a large control panel. One of the men is turning a valve. Dials are displayed on the large metal face of the panel.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1940-1950; Factories--Tacoma; Industrial facilities--Tacoma;

Pennsylvania Salt Manufacturing Company. A large room filled with rows and rows of tanks in the electrolytic cell department. Two men are walking along the aisles to assure all is well. This electro-chemical company manufactured chlorine, caustic soda, sodium hypochlorite, bleaching powder, hydrogen and sodium arsenate among other substances. (TNT, 2/15/1949, p.A-6)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Chemical industry--Tacoma--1940-1950; Tanks (Storage); Factories--Tacoma; Laborers--Tacoma--1940-1950; Industrial facilities--Tacoma;

Fred H. Gillmaster is flanked by Marijane Argue, office secretary, on the left and an unidentified woman on the right, at the Pennsylvania Salt Manufacturing Company of Washington's open house on August 8, 1950. Mr. Gillmaster has a white flower clasped in his hands while the two women wear small corsages. While the Tacoma plant has been in operation since 1929, its parent company is celebrating its 100th anniversary.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960; Gillmaster, Fred H.; Argue, Marijane;

Eight men stand outdoors at the Pennsylvania Salt Manufacturing Company of Washington's open house on August 8, 1950. The open house, held at Pennsalt's Taylor Way location, drew a large crowd of interested visitors and employees. It was all in celebration of its parent firm's 100 anniversary. (TNT 8-6-50, p. A-9)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

A large crowd awaits entry to the open house at the Pennsalt plant on August 8, 1950. They are listening to a welcoming speech by the gentleman standing next to the large American flag. Pennsalt, headquartered in Pennsylvania, has been in the chemicals business for 100 years. In that time, the firm has grown into a nationwide chain of eight manufacturing plants, including Tacoma's tideflats location, and research laboratories. (TNT 8-6-50, p. A-9)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Company of Washington held an open house on August 8, 1950, to celebrate the 100th anniversary of its parent firm. The Tacoma plant is located at on the tideflats at 2901 Taylor Way. Domestic salt is brought in from California and Tacoma's cheap electrical power and abundant clean water are used to produce caustic soda and chlorine. The industrial chemicals can then be transported easily back to California and other locations due to Tacoma's efficient shipping facilities. (TNT 8-9-50, p. 10)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

An open house and tour occurred at the Pennsylvania Salt Manufacturing Company of Washington's Taylor Way plant on August 8, 1950, as the plant helped celebrate its parent firm's 100th anniversary. This long distance shot shows several women relaxing at a table in front of a brick building. The open house drew large crowds of interested visitors.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Chemical industry--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Co. of Washington: yard employees' Christmas party. Employees chat over bowls of soup, paper cups of coffee and long loaves of French bread. The Pennsalt plant manufactured caustic chemicals used in paper, pulp and plywood manufacturing. It was one of the largest plants in the Tacoma Tideflats industrial area.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960;

Pennsylvania Salt Manufacturing Co. of Washington; yard employees' Christmas party. Pennsalt president and general manager Fred C. Shanaman, in center, enjoys a bowl of soup with employees. Pennsalt, at 40 acres on the Hylebos Waterway, was one of the largest plants in the Tideflats industrial area. Materials were brought into the plant by ship and rail. The company was also the major user of Tacoma power & water.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960; Shanaman, Frederick Charles, 1901-1982;

This aerial view of Pennsylvania Salt Manufacturing Company shows their building complex, 2901 Taylor Way, as it appeared in July 1956. Storage tanks dot the area around the plant and one of the Pennwalt barges can be seen being maneuvered to the dock by two tugs. In 1928, the eastern firm was invited to build a caustic soda and liquid chlorine plant on 14 acres of filled ground adjacent to the Hylebos Waterway. The plant opened the following year as Tacoma ElectroChemical Company. As the parent firm diversified the plants' chemical production, it became known as Pennsalt, and then Pennwalt. Pennwalt Corp. was taken over by Elf-Atochem in 1990. ("South on the Sound" by Murray Morgan)

Chemical industry--Tacoma--1950-1960; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma);

Pennsalt; 8 people at a desk. The man in the lab coat holds a glass bottle with a grainy substance inside.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Chemical industry--Tacoma--1950-1960; Factories--Tacoma--1950-1960;