Sulfuric Acid → Hydrogen Sulfide

HRID 1514003Notes

Reaction equation

[S-2:1].[Ba+2:2].[S-2].[Sr+2:4].[S:5](=[O:9])(=[O:8])([OH:7])[OH:6]>>[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[Ba+2:2].[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[Sr+2:4].[SH2:1]

Participants

Reactant 3

HCID 1118Sulfuric Acid

HCID 6857597Barium sulfide

HCID 10219420(alphaS,betaR)-alpha-(2,4-Difluorophenyl)-5-fluoro-beta-methyl-alpha-(1H-1,2,4-triazol-1-ylmethyl)-4-pyrimidineethanol; [S-(R*,S*)]-alpha-(2,4-Difluorophenyl)-5-fluoro-beta-methyl-alpha-(1H-1,2,4-triazol-1-ylmethyl)-4-pyrimidineethanol

Product 3

HCID 402Hydrogen Sulfide

HCID 24414Barium Sulfate

HCID 3084026Strontium sulfate

Procedure

consecutively reacting barium sulfide or strontium sulfide with excess sulfuric acid by cocurrent flowing to produce barium sulfate or strontium sulfate and hydrogen sulfide, discharging the hydrogen sulfide by degassing, then obtaining a suspension of barium sulfate or strontium sulfate after separating and washing treatment;

Sources & evidence

ORD record: ord-89663ef85b134e6bb1d4148b54c7c4ba
Source dataset: uspto-grants-2012_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08221834B2

Reaction notes

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