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 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;

Visitors to the Pennsylvania Salt Manufacturing Company of Washington's open house on August 8, 1950, enjoy refreshments under a large tent. Food was catered by Ben-Dews, whose delivery truck is parked nearby. The plant, located at 2901 Taylor Way, opened its doors to celebrate the 100th anniversary of its parent firm, Pennsalt.

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

A large display of drawings was exhibited at the Pennsylvania Salt Manufacturing Company of Washington's open house held at its tideflats plant on August 8, 1950. The display commemorates the 100th anniversary of the firm's parent company, Pennsalt, and shows a series of illustrations regarding its history.

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

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;

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 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 unidentified group of men and women stand in front of the Pennsylvania Salt Manufacturing Company of Washington's Tacoma plant on August 8, 1950. They are there to celebrate the centennial of the founding of its parent firm. Pennsalt opened its doors in Pennsylvania in 1850 with household lye as its first profitable product. Pennsalt does not produce any common or table salt but does manufacture basic chemicals from salt. (TNT 8-6-50, p. A-9)

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

The Pennsylvania Salt Manufacturing Company of Washington's Taylor Way plant opened its doors for visitors to help celebrate its parent company's 100th anniversary on August 8, 1950. Founded in Natrona, Pennsylvania, in 1850, the firm has grown into a nationwide chain of eight manufacturing plants and research laboratories. Pennsalt does not make table salt. It does, however, make more than 300 chemical products ranging from small bottles of bactercide to multi-ton tank cars of acid. (TNT 8-6-50, p. A-9)

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

The Pennsylvania Salt Manufacturing Company of Washington's Taylor Way plant opened its doors for visitors to help celebrate its parent company's 100th anniversary. Founded in Natrona, Pennsylvania, in 1850, the firm has grown into a nationwide chain of eight manufacturing plants and research laboratories. Pennsalt does not make table salt. It does, however, make more than 300 chemical products ranging from small bottles of bactercide to multi-ton tank cars of acid. (TNT 8-6-50, p. A-9)

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

A Pennsalt guide explains to interested visitors how caustic-chlorine is created during Pennsalt's 100th anniversary open house. Despite its name, Pennsalt does not produce ordinary table salt. It does, however, produce caustic and chlorine from coarse gray California salt for pulp mills. Brine flows into cylinders and caustic soda drains off at the bottom with chlorine gas emerging from the top. These chemical products are then shipped back to California by tanker for a profit. (TNT 8-6-50, p.A-9, Seattle Times, 7-4-54, p.2)

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (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;

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. A view of a large ventilating or cooling system on the exterior of one of the buildings at the plant yards. Several series of narrow tubes stand vertically with dials visible at the front. One series of four tubes run from underground to a square metal box near the middle of the apparatus.

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

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;

Pennwalt plant. This is another view in early 1976 of the sprawling Pennwalt Corporation plant located in Tacoma's tideflats along the Hylebos Waterway. The company was formerly known as the Pennsylvania Salt Manufacturing Co. of Washington or Pennsalt. It had been producing chemicals including caustic soda and liquid chlorine in Tacoma since 1929. Photograph ordered by Pennwalt Corporation.

Chemical industry--Tacoma--1970-1980; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennsalt (Tacoma); Pennwalt Corp. (Tacoma);

Pennwalt plant. Located on 40 acres in the industrial Tacoma tideflats, the company was first known as the Pennsylvania Salt Manufacturing Co. of Washington or Pennsalt. Pennwalt was an inorganic chemical manufacturer of chlorine gas, caustic soda, liquid chlorine and hydrogen gas. Doing business in Tacoma since 1929, its caustic soda and liquid chlorine were in demand by the Northwest's pulp and paper industry. Photograph ordered by Pennwalt Corp.

Chemical industry--Tacoma--1970-1980; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennwalt Corp. (Tacoma);

ca. 1943. Pennsylvania Salt Manufacturing Company, formerly Tacoma Electrochemical Company. Large crowd including employees watches as flags are raised during star award ceremony occurring circa 1943.

Pennsylvania Salt Manufacturing Co. of Washington (Tacoma)--Employees; Crowds--Tacoma--1940-1950; Chemical industry--Tacoma--1940-1950; Flags--United States;

ca. 1943. Pennsylvania Salt Manufacturing Company, formerly Tacoma Electrochemical Company. Crowd gathered for star award ceremony outside office building, a one-story brick building with weather vane on roof. Photograph was taken circa 1943.

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

Water view of Pennwalt Corp. shortly after Christmas, 1969. By 1969, Pennwalt (formerly known as Pennsalt or Pennsylvania Salt Manufacturing Co. of Washington) had been operating in Tacoma for 40 years. The company was located on 40-acres of land in Tacoma's Tideflats along the Hylebos Waterway. A leader in chemical production, it would merge with Wallace & Tiernan to form Pennwalt Corp. in 1969. More changes and mergers would occur and by 2004, the company would be known as Arkema, Inc. Photograph ordered by Pennwalt Corp.

Chemical industry--Tacoma--1960-1970; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennwalt Corp. (Tacoma); Hylebos Waterway (Tacoma);

Exterior view of Pennwalt Corp. Formerly known as Pennsalt, the chemical producing company was located on 40 acres of land adjacent to the Hylebos Waterway. This view on December 26, 1969, shows one of the large piles of salt used by Pennwalt in daily operations. Doing business in Tacoma since 1929, Pennwalt had originally specialized in caustic soda and liquid chlorine for sale to the Pacific Northwest's pulp and paper industry before diversifying. Photograph ordered by Pennwalt Corp.

Chemical industry--Tacoma--1960-1970; Pennsylvania Salt Manufacturing Co. of Washington (Tacoma); Pennwalt Corp. (Tacoma);

Pennsylvania Salt Manufacturing Co. of Washington had long been established in Tacoma; it was to celebrate its 25th anniversary locally in 1954. It started with a 40 acre tract of land on the Hylebos Waterway and has steadily expanded, adding new buildings and machinery, to fill the needs of the pulp and paper industry. View of machinery in Pennsalt plant; this may be a large burner. Photograph ordered by Edwin Cliffe.

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

Pennsylvania Salt Manufacturing Co. of Washington had its headquarters in Tacoma. Despite its name, Pennsalt did not produce table salt but instead was a basic manufacturer of chemicals from salt. It, along with Hooker Electrochemical, supplied caustic soda and chlorine to the Pacific Northwest's pulp and paper industry. View of some of the machinery used by Pennsalt in their Tideflats plant; these are believed to be rotary converters used to convert AC power to direct current. Photograph ordered by Edwin Cliffe, supt. of Pennsylvania Salt Manufacturing Co. of Washington. (Additional information provided by a reader)

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

This is the office of Pennsylvania Salt Manufacturing Co. (commonly known as Pennsalt), located in Tacoma's tideflats area, in January of 1952. The big chemical plant covered 40 acres on the Hylebos Waterway. The Ionic columns are believed to have been manufactured by the (Washington) Mutual Fir Column Co. who were neighbors of Pennsalt.

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

A "Sreen", a high bias installation at Penn Salt.

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

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;

A Pennsalt employee carefully monitors a pressure gauge at the Pennsylvania Salt Manufacturing Co. of Washington's tideflats plant in October, 1951. He has one hand on a handle and stares directly at the gauge. Two tanks of liquid chlorine flank a Toledo scale nearby.

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

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;

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;

This photograph of six cans of caustic soda manufactured by Pennsalt was taken on September 15, 1951. The black metallic cans are of various sizes; five of them contain flake caustic soda while the remaining container is labeled solid caustic soda. Caustic soda, also known as sodium hydroxide, is a white brittle solid used especially in making soap, rayon and paper. It can be in liquid, solid or flake form. The Pennsylvania Salt Manufacturing Co. had a large chemical plant in the Tideflats which manufactured basic chemicals from salt for pulp mills and then onto other products.

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