Synthesis of tetrasodium pentaerythrityl tetrakis (dithiocarbama

Details Synthesis of tetrasodium pentaerythrityl tetrakis (dithiocarbama Synthesis of tetrasodium pentaerythrityl tetrakis (dithiocarbama

1977-06-06

1981-03-03

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C15500

Patent

active

042540550

ABSTRACT:
Tetrasodium pentaerythrityl tetrakis (dithiocarbamate) has been found to be an unusually stable lead precipitant which can be incorporated in coatings to be applied over lead painted surfaces to detoxify the same. The preparation of TSPTD from carbon disulfide sodium hydroxide and pentaerythrityl tetramine by simple mixing thereof does not produce satisfactory yields because of undesirable side reactions. The TSPTD can be produced in high yields by the gradual addition of sodium hydroxide to a mixture of pentaerythrityl tetramine in an excess of carbon disulfide.

REFERENCES:
patent: 2609389 (1952-09-01), Flenner

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