Results 101 to 110 of about 1,187 (190)

THE CRYSTAL STRUCTURE OF ORPIMENT (As2S3) REFINED

Mineralogical Journal, 1954
The crystal structure of orpiment, AS2':33, was refined by the Fourier syn. thesis. The unit cell has the dimensions, a=11.46 A, b=9.57 A, c=4.22 A ane ~=90.5°, containing four AS2':33. The space group is dh-P2t!n. The structun is essentially the same as one described earlier.
openaire   +2 more sources

Illustrating papyrus in Ancient Egypt. [PDF]

Sci Rep, 2023
Autran PO, Dejoie C, Dugand C, Gervason M, Bordet P, Hodeau JL, Anne M, Martinetto P.   +7 more
europepmc   +1 more source

Effects of Sulfide Input on Arsenate Bioreduction and Its Reduction Product Formation in Sulfidic Groundwater. [PDF]

Int J Environ Res Public Health, 2022
Yang Y, Xie X, Chen M, Xie Z, Wang J.
europepmc   +1 more source

Comparative study of the dissolution of stibnite sb2s3 and orpiment as2s3 in hydroxide solutions.

, 2014
Con el objetivo de investigar la disolución de estibina y oropimente en distintas soluciones alcalinas libres de oxígeno, se llevó a cabo un estudio en soluciones acuosas (0.1, 1.0, 3.0, 6.0) M de NaOH.
Mendoza Pasto, Mercy Mireya, Rincon Camargo, Jefferson David   +1 more
core  

Reviving degraded colors of yellow flowers in 17th century still life paintings with macro- and microscale chemical imaging. [PDF]

Sci Adv, 2022
De Keyser N, Broers F, Vanmeert F, De Meyer S, Gabrieli F, Hermens E, Van der Snickt G, Janssens K, Keune K.   +8 more
europepmc   +1 more source

A Study on the Materials Used in the Ancient Architectural Paintings from the Qing Dynasty Tibetan Buddhist Monastery of Puren, China. [PDF]

Materials (Basel), 2023
Teri G, Han K, Huang D, Li Y, Tian Y, Chao X, Jia Z, Fu P, Li Y.   +8 more
europepmc   +1 more source

New Insights into the Medieval Hispano-Muslim Panel Painting: The Alfarje Found in a Balearic Casal (Spain). [PDF]

Molecules, 2023
Álvarez-Romero C, García-Bueno A, López-Martínez T, Turatti-Guerrero R, Montoya N, Doménech-Carbó MT.   +5 more
europepmc   +1 more source

Metavalent bonding under pressure: the case of orpiment

, 2019
Metavalent or resonant bonding is a recently proposed new class of bonding that is intermediate between p-type covalent bonding and metallic bonding. It characterizes a new family of materials known as “incipient metals” [1]. Metavalent bonding occurs in materials where there is a deficiency of valence electrons in the unit cell to form a large number ...
Cuenca-Gotor, V. P., Sans, Juan Angel, Gomis, Óscar, Mujica, A., Radescu, S., Muñoz, A., Rodríguez-Hernández, P., Lora da Silva, E., Popescu, Catalina, Ibáñez Insa, Jordi, Vilaplana, R., Manjón, F. J.   +11 more
openaire   +1 more source

Mercuric-sulphide based metallopharmaceutical formulation as an alternative therapeutic to combat viral and multidrug-resistant (MDR) bacterial infections. [PDF]

Sci Rep, 2023
Malarvizhi K, Ramyadevi D, Vedha Hari BN, Sarveswari HB, Solomon AP, Fang H, Luo RH, Zheng YT.   +7 more
europepmc   +1 more source

Hidden mysteries in ancient Egyptian paintings from the Theban Necropolis observed by in-situ XRF mapping. [PDF]

PLoS One, 2023
Martinez P, Alfeld M, Defeyt C, Elleithy H, Glanville H, Hartwig M, Hocquet FP, Jaber M, Martinetto P, Strivay D, Walter P.   +10 more
europepmc   +1 more source