Calcium plumbate explained

Calcium plumbate is an inorganic chemical that has been used extensively as an anticorrosive pigment in paints and coatings.[1] [2] [3] [4] The formula is given as CaO3Pb,[5] [6] but also is shown as CaO4Pb2 in other sources.[7] [8] The compound has REACH restricted status due to the general toxicity of lead based compounds.[9]

Manufacture

It is usually manufactured by the reaction of calcium oxide (CaO) and lead oxide (PbO) at high temperature in the presence of excess oxygen.[10]

Recent research indicates that it can be prepared by sol-gel methodology.[11]

Toxicology

Calcium plumbate and other lead paint additives have been known to cause lead poisoning for over 50 years.[12] The effects of paint containing calcium plumbate dust have likewise been studied and analytical techniques developed to assess lead content.[13] [14] Studies also include finding calcium plumbate in soils and further possible bioaccumulation.[15] The demand for lead in all forms is decreasing worldwide,[16] though the use of calcium plumbate and other heavy metal compounds in cement and concrete is subject to recent research and the specific toxicology studied.[17]

See also

References

  1. Wesson . H.C. . 1960-01-01 . RUST INHIBITION THROUGH: CALCIUM PLUMBATE PIGMENT . Anti-Corrosion Methods and Materials . 7 . 2 . 37–38 . 10.1108/eb019682 . 0003-5599.
  2. Read . N.J. . 1956-01-01 . CALCIUM PLUMBATE: A Post‐War Development in Anti‐Corrosive Paint Pigments . Anti-Corrosion Methods and Materials . 3 . 4 . 119–123 . 10.1108/eb019166 . 0003-5599.
  3. 1956-01-01 . The Commercial Advantages of CALCIUM PLUMBATE PAINT . Anti-Corrosion Methods and Materials . 3 . 7 . 233–235 . 10.1108/eb019199 . 0003-5599.
  4. Mayne . J. E. O. . May 1970 . Paints for the Protection of Steel—a Review of Research into their Modes of Action . British Corrosion Journal . en . 5 . 3 . 106–111 . 10.1179/000705970798324685 . 0007-0599.
  5. Web site: PubChem . Calcium plumbate . 2023-11-13 . pubchem.ncbi.nlm.nih.gov . en.
  6. Web site: CALCIUM PLUMBATE . 2023-11-16 . www.chemsrc.com . en.
  7. Web site: CALCIUM PLUMBATE - 12013-69-3 Vulcanchem . 2023-11-16 . www.vulcanchem.com.
  8. Web site: CALCIUM PLUMBATE 12013-69-3 . 2023-11-16 . ChemicalBook . en.
  9. Web site: PubChem . Calcium plumbate . 2023-11-13 . pubchem.ncbi.nlm.nih.gov . en.
  10. Martini . P. L. . Bianchini . A. . May 1969. Formation of calcium plumbate: Kinetics and mechanism of reaction . Journal of Applied Chemistry . en . 19 . 5 . 147–152 . 10.1002/jctb.5010190504 . 0021-8871.
  11. Rubešová . Kateřina . Sýkorová . Dagmar . 2009-02-01 . Preparation of calcium plumbate via different route . Journal of Sol-Gel Science and Technology . en . 49 . 2 . 228–232 . 10.1007/s10971-008-1848-3 . 95984137 . 1573-4846.
  12. The danger of lead in paints . 2023-11-16 . The Annals of Occupational Hygiene . 1972 . 10.1093/annhyg/15.1.117. 5044502 . Timmins . F. D. . 15 . 1 . 117–122 .
  13. Sturges . W. T. . Harrison . Roy M. . 1985-09-01 . An assessment of the contribution from paint flakes to the lead content of some street and household dusts . Science of the Total Environment . 44 . 3 . 225–234 . 10.1016/0048-9697(85)90096-8 . 4048930 . 1985ScTEn..44..225S . 0048-9697.
  14. Jones . K. . McDonald . A. . 1983-01-01 . The efficiency of different methods of extracting lead from street dust . Environmental Pollution Series B, Chemical and Physical . 6 . 2 . 133–143 . 10.1016/0143-148X(83)90009-5 . 0143-148X.
  15. Hunt . Andrew . 2016-08-01 . Relative bioaccessibility of Pb-based paint in soil . Environmental Geochemistry and Health . en . 38 . 4 . 1037–1050 . 10.1007/s10653-015-9789-6 . 26744019 . 207124185 . 1573-2983.
  16. Wilson . David N. . 2006-10-01 . Beyond batteries: Other trends in the demand for lead . JOM . en . 58 . 10 . 24–27 . 10.1007/s11837-006-0196-4 . 2006JOM....58j..24W . 109320784 . 1543-1851.
  17. Saini . Surendra Kumar . Ransinchung . G. D. . Kumar . Praveen . Ray . Sonalisa . 2022-03-28 . Investigation of jarosite-cement blends for hydration process and mechanical behavior in PQC mixes . Innovative Infrastructure Solutions . en . 7 . 3 . 198 . 10.1007/s41062-021-00707-6 . 247767467 . 2364-4184.

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