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Inventories, Net
6 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Inventories, Net

Note 4 – Inventories, net:

​

.7

​

​

​

​

​

​

​

​

December 31, 

​

June 30, 

​

    

2021

    

2022

​

​

(In millions)

Raw materials:

 

​

  

 

​

  

Chemicals

​

$

76.3

​

$

108.9

Component products

​

 

5.0

​

 

7.2

Total raw materials

​

 

81.3

​

 

116.1

Work in process:

​

 

  

​

 

  

Chemicals

​

 

30.4

​

 

28.6

Component products

​

 

16.8

​

 

21.0

Total in-process products

​

 

47.2

​

 

49.6

Finished products:

​

 

  

​

 

  

Chemicals

​

 

246.4

​

 

221.0

Component products

​

 

3.8

​

 

5.1

Total finished products

​

 

250.2

​

 

226.1

Supplies (chemicals)

​

 

80.0

​

 

77.3

Total

​

$

458.7

​

$

469.1

​