A Neoclassical double portrait by Jacques-Louis David, depicting the chemist Antoine-Laurent Lavoisier and his wife, Marie-Anne, in their study.

This double portrait depicts the chemist Antoine-Laurent Lavoisier and his wife, Marie-Anne Pierrette Paulze. Painted by Jacques-Louis David in 1788, the work captures the couple in a moment of intellectual collaboration. Antoine-Laurent sits at a desk covered in a red cloth, holding a quill, while Marie-Anne leans against his shoulder, looking directly at the viewer. Her presence is not merely decorative; she was an active participant in her husband's scientific work, often acting as his illustrator and translator.

The composition is restrained, typical of David's Neoclassical approach. The background is sparse, featuring simple architectural elements that draw attention to the figures and the scientific instruments scattered around the room. These tools, including a gasometer and glass flasks, signify the couple's contributions to the field of chemistry. The lighting is clear and even, allowing for the precise rendering of textures, from the heavy velvet of the table covering to the delicate muslin of Marie-Anne's dress.

David avoids excessive ornamentation, focusing instead on the psychological connection between the subjects. The painting reflects the Enlightenment ideals of the era, where scientific inquiry and domestic partnership were presented as harmonious pursuits. The palette is controlled, with the deep red of the table cloth providing a contrast to the cool tones of the clothing and the grey walls. This work remains a primary example of late eighteenth-century portraiture, documenting both the personal relationship of the Lavoisiers and their professional identity within the scientific community of pre-revolutionary France.