2,3-Dihydroxybutanedioic Acid → Lead oxide sulfate (Pb4O3(SO4))

HRID 2285699

반응식

HRID 2285699 반응식
[Pb:1]=[O:2].C(O)(=O)C(C(C(O)=O)O)[OH:5].[S:13](=[O:17])(=[O:16])([OH:15])[OH:14]>>[O-2:5].[O-2:14].[O-2:2].[O-:16][S:13]([O-:17])(=[O:15])=[O:14].[Pb+2:1].[Pb+2:1].[Pb+2:1].[Pb+2:1]

참가 물질

4

반응물 3

HCID 8752,3-Dihydroxybutanedioic AcidHCID 1118Sulfuric AcidHCID 14827Lead monoxide

생성물 1

HCID 9941248Lead oxide sulfate (Pb4O3(SO4))

실험 절차

A 2-liter beaker was charged with 1175.6 ml of the lead monoxide slurry A-3 (containing 0.587 g of PbOn) and 0.7 g of powdery tartaric acid was added to the slurry under agitation with a glass vane (pH=9.7). The mixture was heated and when the temperature was elevated to about 70° C., 26.22 ml of sulfuric acid having a concentration of 3.86 mole/l was promptly added to the slurry in about 10 seconds (the pH value was 5.7 at the initial stage of addition). The temperature was maintained at 65° to 70° C. while heating the slurry on a heater under agitation, and in this state, aging was carried out for 60 minutes to obtain a base slurry of tribasic lead sulfate having a pH value of 8.4.

후처리

  1. additionwas added to the slurry under agitation with a glass vane (pH=9.7)
  2. temperatureThe mixture was heated
  3. customwas elevated to about 70° C.
  4. additionstage of addition)
  5. temperatureThe temperature was maintained at 65° to 70° C.
  6. temperaturewhile heating the slurry on a heater under agitation

출처 및 근거

ORD 기록
ord-a9cc3c1298314f80a491e52d536a3e39
출처 데이터셋
uspto-grants-1982_04
특허 번호
US04324768

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