Study of corrosion on copper strips by petroleum naphtha in the ASTM D-130 test by means of electronic microscopy (SEM) and energy dispersive X-ray (EDX)

Garcı́a-Antón, J.; Monzó, J.; Guiñón, J. L.; Gómez, Domingo Javier Carvajal; Costa, Josiane Soares

doi:10.1007/bf00322216

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…Kashima and Nose related test strips corroded by sulfurous paraffin with the electron diffraction patterns of the copper oxide and copper sulfide films responsible for the corrosion classifications . More recently, the sulfur content of corroded surfaces was correlated with both the ASTM classification and the sulfur content of naphtha mixtures containing sulfur, mercaptans, disulfides, and organosulfides. − Only two studies have focused on interpreting the copper strip test for lighter hydrocarbons. In the late 1970s, Pyburn et al exposed copper strips to known concentrations of hydrogen sulfide and elemental sulfur in LPG and correlated ASTM corrosion classifications directly with sulfur concentration. , In 1991, Clark and Lesage tested pentane solutions containing elemental sulfur, H 2 S, COS, and other sulfur compounds as a model for LPG corrosion, yet their results in the heavier hydrocarbon did not duplicate those of Pyburn…”

Section: Introductionmentioning

confidence: 99%

The ASTM Copper Strip Corrosion Test: Application to Propane with Carbonyl Sulfide and Hydrogen Sulfide

2002

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Carbonyl sulfide (COS), which occurs as an impurity in commercial sources of propane, can hydrolyze in the presence of water to form hydrogen sulfide (H 2 S) and carbon dioxide (CO 2 ). All commercial and HD-5 grade propane is required to pass the copper strip corrosion test, ASTM Test Method D 1838. While it is known that hydrogen sulfide will cause the failure of the copper strip test, it is widely believed that the hydrolysis of carbonyl sulfide can also cause the failure of the corrosion test. We have tested gravimetrically prepared mixtures of COS and H 2 S in pure and commercial grade propane with a variant of the ASTM copper strip corrosion test. Minor changes to the published ASTM corrosion test were implemented for diagnostic or monitoring purposes in making the measurements. Surprisingly, mixtures containing as much as 1000 ppm (mass/mass) COS did not cause a failure of the test, even when the copper strip was in contact with the COS mixture for 2 h (double the normal contact time). Mixtures containing H 2 S caused the failure of the test; however, concentrations as high as 3.5 ppm (mass/mass) H 2 S passed the test. Moreover, we were not able to produce the colors and patterns shown on the ASTM copper strip corrosion standards lithograph.

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Section: Introductionmentioning

confidence: 99%

The ASTM Copper Strip Corrosion Test: Application to Propane with Carbonyl Sulfide and Hydrogen Sulfide

2002

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“…In these places, the exposed copper showed very few polishing marks, suggesting that the reaction of the inhibitor with the surface incorporated the copper into the film. Interestingly, the surface looks similar to those presented by Garcia‐Anton et al where copper coupons were immersed into synthetic naphtha‐containing different sulfur species.…”

Section: Resultsmentioning

confidence: 99%

Automatic transmission fluid corrosion inhibitor interactions with copper

Warren

Hunt²,

Bryant

et al. 2018

Lubrication Science

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In this paper, a new method, measuring the change in resistance of a thin copper wire, has been applied to provide a way to monitor a corrosion reaction in situ. Two different corrosion inhibitors used in commercial automatic transmission fluids have been studied at 110 °C, 120 °C, 130°C, and 150 °C using this new test method coupled with a more traditional coupon test to allow surface analysis to be carried out. Both inhibitors were found to be equally as effective up to temperatures of 130°C; however, the evidence provided shows that at 150°C, the thiadiazole inhibitor is breaking down leading to severe pitting on the surface. Corrosion performance therefore, cannot be assumed to be effective at all temperatures, and the current method provides a convenient quantitative screening method for inhibitor evaluation.

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“…Studies of sulfur species present on copper strips following immersion in oil using scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS) analysis have shown that the mechanism of corrosion is dependent on the type of sulfur that is present, temperature and contact time. 6,7 The ASTM D130 standard is the most common bench test used to assess the potential for copper corrosion. The ASTM D130 was first issued in 1922 as a tentative standard for the detection of corrosive sulfur in gasoline.…”

Section: Introductionmentioning

confidence: 99%

“…When the environment is a formulated hydrocarbon solution, such as fuels and lubricants, the main concern is corrosion by sulfur compounds. Studies of sulfur species present on copper strips following immersion in oil using scanning electron microscope (SEM) and energy dispersive X‐ray spectroscopy (EDS) analysis have shown that the mechanism of corrosion is dependent on the type of sulfur that is present, temperature and contact time 6,7 . The ASTM D130 standard is the most common bench test used to assess the potential for copper corrosion.…”

Section: Introductionmentioning

confidence: 99%

The influence of model organosulfur extreme pressure additives and analogues on the corrosion of copper as measured by a wire corrosion test method

Hunt¹,

Gahagan²,

Peplow³

2023

Lubrication Science

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Study of corrosion on copper strips by petroleum naphtha in the ASTM D-130 test by means of electronic microscopy (SEM) and energy dispersive X-ray (EDX)

Cited by 9 publications

References 17 publications

The ASTM Copper Strip Corrosion Test: Application to Propane with Carbonyl Sulfide and Hydrogen Sulfide

The ASTM Copper Strip Corrosion Test: Application to Propane with Carbonyl Sulfide and Hydrogen Sulfide

Automatic transmission fluid corrosion inhibitor interactions with copper

The influence of model organosulfur extreme pressure additives and analogues on the corrosion of copper as measured by a wire corrosion test method

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