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