Prafulla Chandra Ray

Prafulla Chandra Ray was born on August 2, 1861, in the village of Raruli-Katipara in the Jashore District of Bengal, then part of British India and now in Bangladesh ^[1]. His father, Harish Chandra Ray, was a landholder with a taste for books and music who kept a substantial library at home. That library shaped the boy early: he read widely in Bengali and English before he had any formal scientific training, and he retained a lifelong habit of quoting literature and history alongside chemistry ^[2].

The family moved to Calcutta in 1870 so the children could attend better schools. Prafulla Chandra enrolled at Hare School, but a severe attack of dysentery in 1874 interrupted his studies and left his digestion permanently weakened. He spent roughly two years recovering at the family home in the countryside, a period he later described as valuable because it pushed him deeper into reading ^[2]. He returned to Calcutta, completed his schooling at Albert School, and in 1879 passed the entrance examination of the University of Calcutta, joining Metropolitan Institution, the college founded by Ishwar Chandra Vidyasagar ^[1].

Metropolitan Institution had no science laboratories at the time, so Ray attended chemistry lectures at Presidency College as an external student. The lectures of Alexander Pedler, a skilled experimental demonstrator, drew him toward chemistry and away from literature, which had been his first love. Who was Prafulla Chandra Ray at nineteen? A student of arts who had quietly decided that experimental science, not English literature, would be his life's work ^[2].

In 1882 Ray won a Gilchrist scholarship, awarded by competitive examination, and sailed for Britain without completing his Calcutta degree. He entered the University of Edinburgh, where he studied chemistry under Alexander Crum Brown, and took his BSc in 1885 ^[1]. He stayed on for research and received a DSc in 1887 for work on conjugated sulphates of the copper and magnesium groups. The university awarded him the Hope Prize Scholarship, which allowed a further year of research, and his fellow students elected him vice president of the Edinburgh University Chemical Society ^[3].

Edinburgh shaped more than his chemistry. In 1885 Ray entered an essay competition on the condition of India before and after the Mutiny of 1857. His entry, sharply critical of British rule, did not win, but he printed it as a pamphlet and sent copies to members of Parliament, including John Bright. The episode marked him as a scientist who would never separate his laboratory work from the economic condition of his country ^[2].

Ray returned to India in 1888 and waited a year for a post, spending the interval working with his friend Jagadish Chandra Bose in Bose's laboratory. In 1889 he was appointed temporary assistant professor of chemistry at Presidency College, Calcutta, at a salary far below what British officers of the Indian Educational Service received for the same work. He noted the discrimination publicly and pressed for equal treatment of Indian scientists throughout his career ^[1].

Ray's best known laboratory discovery came in 1896, when he prepared mercurous nitrite, a compound whose stable existence chemists had doubted. He obtained it while working on reactions of mercury with dilute nitric acid, published the finding in the Journal of the Asiatic Society of Bengal, and followed it with a long series of papers on nitrites and hyponitrites of mercury and other metals ^[3]. The discovery drew notice in Nature and gave Indian chemical research, then almost nonexistent as an organized activity, its first internationally recognized result. Over his career Ray and his students published well over one hundred research papers in journals in India and Europe ^[4].

His second great scientific project was historical. Struck by a remark of the French chemist Marcellin Berthelot on the alchemy of the Greeks, Ray began collecting Sanskrit manuscripts on early Indian chemical practice. The result was the two-volume History of Hindu Chemistry, published in 1902 and 1909, which documented metallurgy, distillation, and medicinal preparations in ancient and medieval India from primary texts ^[5]. Berthelot himself reviewed the work favorably, and it remains a foundational study of premodern Indian science.

The third achievement was industrial. In 1892, with about 700 rupees of savings, Ray started a small firm making chemical products in his home. It grew into Bengal Chemical and Pharmaceutical Works, formally incorporated in 1901, the first Indian-owned pharmaceutical company ^[6]. The firm manufactured drugs, chemicals, and eventually items such as fire extinguishers, and it employed thousands. For Ray the company was an argument in physical form: Bengalis, widely stereotyped as unfit for business, could build and run modern industry. Any list of Prafulla Chandra Ray achievements has to hold these three together, the laboratory discovery, the history, and the factory, because he saw them as one program of national regeneration ^[4].

Ray taught at Presidency College until 1916, and his classroom became the seedbed of Indian chemistry. His students included Meghnad Saha, later famous for the thermal ionization equation, the chemist Jnan Chandra Ghosh, and Jnanendra Nath Mukherjee, along with dozens of others who went on to found departments and laboratories across India ^[4]. Contemporaries wrote that what came to be called the Indian school of chemistry began in his Presidency laboratory.

In 1916 he moved to the newly created University College of Science of the University of Calcutta, founded by Sir Asutosh Mookerjee, as its first Palit Professor of Chemistry ^[1]. He served there until retiring from teaching in 1936, at the age of 75, and continued to work as professor emeritus. He donated his entire Palit salary, along with much of his other income, to the university to fund research fellowships and to endow awards in chemistry, including prizes named for Nagarjuna and for Asutosh Mookerjee ^[2].

Honors accumulated. The University of Durham gave him an honorary doctorate in 1912, and the British government made him a Companion of the Indian Empire in 1911 and a knight in 1919 ^[1]. He presided over the Indian Science Congress in 1920. Yet he wore the same plain khaddar clothes, lived in a single room at the college, and was widely described by the phrase Mahatma Gandhi and others used for him, a scientist who lived like an ascetic ^[7].

Ray never married. He lived with deliberate austerity, occupying modest quarters inside the University College of Science for decades and spending almost nothing on himself ^[2]. Frugality freed his money for others: he financed student fellowships, famine relief, khadi cooperatives, and schools in his home district, and he was among the largest individual donors to Bengal relief efforts of his era.

He was a committed public man as well as a chemist. Ray supported the swadeshi program of economic self-reliance, championed the handloom and khadi movements, and organized major relief operations during the North Bengal floods of 1922, work for which Gandhi praised him ^[7]. He was cautious about direct political agitation, arguing that India needed industry, science, and jobs as urgently as constitutional change, but his sympathies with the national movement were never in doubt.

His writing filled the hours outside the laboratory. Besides scientific papers and the History of Hindu Chemistry, he published essays in Bengali on education, industry, and social reform, and a two-volume autobiography, Life and Experiences of a Bengali Chemist, which appeared in 1932 and 1935 ^[2]. The book mixes memoir with blunt commentary on caste, the middle-class avoidance of manual work, and the economic drain of colonial rule, and it remains one of the most readable accounts of nineteenth century Bengal by any scientist.

The 1930s brought celebration and decline together. In 1932 admirers across India marked his seventieth birthday (calculated by the Bengali reckoning) with public meetings, and in 1941 his eightieth birthday was observed nationally, with tributes from Gandhi, Rabindranath Tagore, and scientific colleagues ^[2]. He kept writing and kept giving; by his own account nearly all of his earnings had gone to public causes.

His health, never strong since the illness of his school years, failed gradually. He witnessed the outbreak of the Second World War and the early stages of the catastrophic Bengal famine, disasters that pained a man who had spent decades organizing relief. Prafulla Chandra Ray died on June 16, 1944, in his room at the University College of Science in Calcutta, aged 82 ^[1].

Ray is routinely called the father of Indian chemistry, and the title is defensible on the record. He produced the first internationally noticed chemical research from an Indian laboratory, trained the first large cohort of Indian research chemists, wrote the first scholarly history of Indian chemical knowledge, and founded the first Indian pharmaceutical company ^[4]. Bengal Chemicals and Pharmaceuticals still operates today as a public sector company, more than a century after its incorporation ^[6].

Institutions keep his name in circulation. The Indian Chemical Society, which he helped found in 1924 and served as its first president, continues to publish research. Schools, colleges, roads, and awards across India and Bangladesh carry his name, India issued a commemorative postage stamp in his honor in 1961 on his birth centenary, and the Royal Society of Chemistry honored his life and work with a Chemical Landmark plaque in 2011, the first ever awarded to a scientist outside Europe ^[8].

Any fair reading of a Prafulla Chandra Ray biography ends with the union of ideas he embodied: rigorous experimental science, pride in India's own intellectual past, and the conviction that knowledge must produce industry and employment. Among the most cited Prafulla Chandra Ray facts is that he gave away nearly everything he earned. For a man who owned almost nothing, he left an unusually large estate: a science, an industry, and several generations of students ^[4].