Phosphorodithioic acid → Phosphorodithioic acid, zinc salt (1:?)

HRID 601956Notes

Reaction equation

HRID 601956 reaction equation
[P:1](=[S:5])([OH:4])([OH:3])[SH:2].[O-2].[Zn+2:7]>>[P:1]([O-:4])([O-:3])([S-:5])=[S:2].[Zn+2:7].[P:1]([O-:4])([O-:3])([S-:5])=[S:2].[Zn+2:7].[Zn+2:7]

Participants

3

Conditions

Temperature
65 °C

Procedure

To a three neck flask was added 204.3 g of the dithiophosphoric acid mixture from Example 3, lot RJT-543-244, and 27.1 g of zinc oxide. The mixture was heated to 65° C. and mixed at this temperature for four hours. The temperature was then increased to 100° C. The temperature was then gradually increased to 110° C. under vacuum while distilling off any water produced from the reaction. After mixing at 110° C. for 1 hour while under vacuum, the final product was filtered with diatomaceous earth.

Workup

  1. additionmixed at this temperature for four hours
  2. temperatureThe temperature was then increased to 100° C
  3. temperatureThe temperature was then gradually increased to 110° C. under vacuum
  4. distillationwhile distilling off any water
  5. customproduced from the reaction
  6. additionAfter mixing at 110° C. for 1 hour while under vacuum
  7. filtrationthe final product was filtered with diatomaceous earth

Sources & evidence

ORD record
ord-655e084eea684383a72d73073ec898d5
Source dataset
uspto-grants-2011_03
Patent number
US07902403B2

Reaction notes

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