Manufacturing of Paints from Inorganic Chemicals

Manufacturing of Paints from Inorganic Chemicals

Prof. Dr. Satchidanand Satpute Vishwakarma Institute of Technology

Pune, India

Alkesh Rathod Vishwakarma Institute of Technology

Pune, India

Prathamesh Umathe Vishwakarma Institute of Technology

Pune, India

Harsh Khadtale Vishwakarma Institute of Technology

Pune, India

Omkar Rode Vishwakarma Institute of Technology

Pune, India

Kamlesh Wagh

Vishwakarma Institute of Technology Pune, India

Abstract- Paint manufacturing from inorganic chemicals is a very cumbersome process in order to make the pigments bright and enduring.This research features three of these pigments: manganese violet, Mars black, and Prussian blue. Manganese violet is an ammonium manganese(III) pyrophosphate compound that requires exact temperature and pH control in its synthesis in order to realize its bright purple color and stability. Mars Black is manufactured from synthetic iron oxide by calcination at high temperature. It has a rich, deep black colour with very good opacity and resistance to weathering. Prussian Blue Prussian blue forms from the reaction between the rust (iron oxide) and potassium ferrocyanide and is a deep blue pigment that is considered very intense and of great historic importance. The study describes the type of chemical reactions, ways of production, and quality control necessary for their production. Attention is paid to the optimization of the production process with a view to improvement in the quality, homogeneity, and safety of the pigments produced, and the respect of the laws on the environment and safety. Their successful synthesis afforded not only advance in paint manufacturing but also assured high-quality paints to meet the needs of various artistic and industrial applications.

Keywords -Paint Manufacturing, Pigment, Rust, Inorganic chemicals, Chemical synthesis

1. INTRODUCTION

   Inorganic pigments have been used for thousands of years to beautify our surroundings, enhance objects, and influence our thoughts and feelings.[1] The production of paint from inorganic chemicals combines chemistry and engineering to create vibrant, durable pigments. Among the notable inorganic pigments are manganese violet, Mars black, and Prussian blue, each known for their distinct colors and applications. Inorganic pigments have been essential for thousands of years, adding color to our surroundings and influencing our moods. Natural materials were the source of early pigments, but industrial pigment production started around 1800 with advancements in chemistry. The 19th and 20th centuries saw the development of most modern pigments, with ongoing research aimed at improving existing ones and

   creating new varieties. This guide explores inorganic pigments, discussing their types, properties, historical context, modern applications, and recent developments. [2] Inorganic pigments are classified into four main groups: lead chromates, Inorganic pigments are mainly categorized into four groups: lead chromates, metal oxides, sulphides, and sulfoselenides, with exceptions like cobalt blue, ultramarine blue, and bismuth vanadate yellow. This chapter explores the chemistry, manufacturing, and properties of these pigments. Mixed metal oxides (MMOs), or complex inorganic colored pigments (CICPs), are widely used in ceramics and discussed separately. Transparent iron oxide pigments, notable for their nano-sized particles, are commonly used in automotive and wood coatings, providing color, transparency, durability, UV protection, and heat resistance.3]

2. LITERATURE REVIEW

   Introduction to Far-Infrared Spectroscopy in Art Preservation. Artworks, made up of complex layers of organic and inorganic materials, require careful study and preservation. Far-infrared spectroscopy in Attenuated Total Reflectance (ATR) mode is an effective non-destructive method for analysis. This technique selectively detects inorganic pigments due to their stable absorption bands, even when combined with binders such as linseed oil.

   Research Highlights

   Research conducted by the University of Bologna and the University of Tartu has examined the strengths and limitations of far-infrared spectroscopy in Attenuated Total Reflectance (ATR) mode. This method effectively identifies inorganic pigments within a paint matrix by analyzing stable absorption bands, making it a reliable tool for pigment detection. It is also sensitive enough to detect trace amounts of pigments, although its accuracy may vary depending on the pigment type and the medium used. Furthermore, far-infrared spectroscopy is useful for tracking the interactions between pigments and linseed oil over time, offering insights into pigment aging and long-term stability. These studies highlight the value of this technique in the preservation and analysis of artworks.

   Prussian Blue: Historical and Modern Significance Prussian blue, or iron(III) hexacyanoferrate(II), discovered over 300 years ago, has had a profound influence on chemistry. X-ray crystallography in the late 20th century revealed its unique open 'zeolytic' lattice, which has proven useful in medicine for treating poisonings and in technology for applications such as electrochromic displays.. Its photochemical properties are exploited in cyanotype, a blueprint process popular among photographers.

   Novel Violet Pigments from Manganese Oxide

   Recent studies on synthesizing violet pigments from manganese oxide and phosphoric acid highlight advancements in pigment chemistry .Synthesis and Analysis: Heating precursor materials at different temperatures produced novel pigments analyzed using X-ray diffraction, infrared spectroscopy, and X-ray photoelectron spectroscopy. Optical Properties: Ultraviolet-visible reflectance spectroscopy and colorimetric measurements in the Lab color space correlated colour attributes with synthesis conditions.[6]

3. RAW MATERIALS

   Mars Black:-Steel wool is made of thin steel Fibers, usually from high-carbon steel, which gives it strength, durability, and resistance to rust. It is commonly used for cleaning and finishing surfaces. Concentrated hydrochloric acid (HCl) is a strong acid used in metal cleaning and various chemical processes. Hydrogen peroxide is often utilized in paint manufacturing as a bleaching and oxidizing agent, which helps enhance the paint's quality and durability. Sodium hydroxide (NaOH) solution is a highly alkaline substance used in paint formulations to adjust pH, emulsify ingredients, and neutralize acids, ensuring the proper balance and performance of the final Product.

   Prussian Blue:- Potassium ferrocyanide reacts with iron(III) salts to produce Prussian blue, known for its vibrant and stable blue colour. Distilled water is used to ensure purity during pigment formation, preventing contamination and maintaining the desired chemical reactions. Hydrochloric acid (HCl) is used in preparing metal surfaces and adjusting pH levels in paint formulations.

   Manganese Violet:-Yellow mineral oil is used as a dispersing and binding medium, helping to evenly distribute the pigment and maintain stable viscosity. Manganese dioxide serves as the main source of manganese, which is crucial for creating the vibrant violet pigment. Phosphoric acid reacts with manganese salts to form manganese phosphate, playing a key role in pigment crystallization and ensuring purity. Ammonium phosphate reacts with manganese ions to produce a stable, vibrant purple pigment, ensuring that the particles are evenly distributed in size..

   Composition For all the Pigment

   Table No. 1 Mars Black

   Material	Material Used in Grams
   Steel Wool	20 grams
   Concentrated HCL	50ml
   Hydrogen Peroxide	50ml
   Distilled Water	100ml
   NaOH Solution	50mml

   Table No. 2 Prussian Blue

   HCL	10ml
   Distilled Water	200ml
   Potassium Ferrocyanide	10 grams
   ferrous sulfate	10 grams

   Table No. 3 Manganese Violet

   Yellow Mineral Oil	130 ml
   Manganese dioxide	50 grams
   Phosphoric Acid	30 ml
   Ammonium Phosphate	40 grams

4. MANUFACTURING PROCESS

   General Paint Manufacturing Steps:

   The paint production process begins with formulation, where the paint recipe is developed to determine the types and amounts of raw materials needed. Next, pigments, binders, solvents, and additives are weighed and mixed according to the recipe. The mixture is then dispersed using mechanical mixing or grinding to ensure the pigments and fillers are evenly distributed. Additives such as stabilizers, thickeners, and preservatives are incorporated to improve the paint's performance and stability. Quality control checks are carried out throughout the process to ensure the paint meets standards for color consistency, viscosity, and other properties. After passing quality checks, the paint is packaged with appropriate labels. Finally, the packaged paint is stored under controlled conditions before being distributed.

   Manufacturing Mars Black Paint (250 ml):

   Start by measuring and cutting 20 grams of steel wool into small pieces. In a well-ventilated area, add 50 ml of hydrochloric acid (HCl) to the steel wool in a glass container and let the reaction continue until the steel wool is completely dissolved. Next, slowly add 50 ml of sodium hydroxide solution (NaOH) to the iron chloride solution to form iron hydroxide as a precipitate. To oxidize the iron hydroxide into black iron oxide, either expose it to air or add 50 ml of hydrogen peroxide (HO). Finally, wash the black iron oxide pigment with distilled water and dry it thoroughly.3. solution (NaOH) to the iron chloride solution to precipitate iron hydroxide.

   Manufacturing Prussian Blue Paint (250 ml):

   Begin by dissolving 10 grams of potassium ferrocyanide in 200 ml of distilled water. Next, dissolve 10 grams of ferrous sulfate in 100 ml of distilled water, then add 10 ml of concentrated hydrochloric acid to the solution. To form Prussian blue, slowly pour the potassium ferrocyanide solution into the ferrous sulfate solution while stirring. After the blue pigment forms, filter it out, wash it with distilled water, and dry it. Finally, grind the dried pigment into a fine powder and mix it with distilled water to reach the desired paint consistency.

   Manufacturing Manganese Violet Paint (250 ml):

   Start by combining 50 grams of manganese dioxide with 30 ml of phosphoric acid to form a uniform slurry, then heat the mixture to 150°C for 1 hour. Allow the mixture to cool to room temperature, then add 40 grams of ammonium phosphate. Gradually stir the cooled mixture into 130 ml of yellow mineral oil to create a smooth, uniform paint mixture. If needed, add more yellow mineral oil to adjust the paint to the desired consistency.

   Safety Precautions: Always wear the right personal protective equipment (PPE), such as gloves, safety goggles, and lab coats. Handle acids and other chemicals carefully, and make sure to work in well-ventilated areas or under a fume hood. Dispose of any waste chemicals properly, following local regulations.

5. RESULTS AND DISCUSSION

   we discuss the synthesis and characterization of manganese phosphate pigments, focusing on the impact of various heating temperatures and P/Mn ratios.

   Chemical Composition Analysis

   X-ray Diffraction (XRD) and Infrared (IR) Spectroscopy:- The chemical compositions were analyzed using XRD patterns and IR spectra. XRD analysis showed peaks corresponding to manganese dioxide in samples heated at 300°C and 400°C, with unidentified peaks appearing at higher temperatures, suggesting incomplete reactions at 400°C. IR spectra revealed distinct absorption peaks at 925, 1050, and 1240 cm¹ for samples heated at 500°C, which were not present in samples heated at lower temperatures.

   Valence Analysis:

   X-ray photoelectron spectroscopy (XPS) was used to analyze the manganese in the best material, detecting both trivalent and divalent manganese states.

   Color Evaluation

   UV-Vis reflectance spectra were used to check the color of the pigments. Samples heated to 500°C turned violet, showing trivalent manganese, while samples heated to 700°C had a yellowish color, indicating divalent manganese.

   Summary of Findings

   The best violet pigment was produced by heating at 500°C for 1 hour with a P/Mn ratio of 2/3, resulting in strong color quality. Samples with P/Mn ratios of 1/1 and 2/1 had weaker colors and showed their best violet at 400°C. Future research should focus on improving the brightness of the pigments.

   Fig. No.1

   Fig .No.2

   Fig. No.3

6. CONCLUSION

   The manufacturing processes of Prussian Blue, Manganese Violet, and Mars Black pigments underscore the intricate relationship between chemistry and industrial techniques that underpin high-quality pigment production. Each pigment's synthesis relies on specific chemical reactions, precise measurements, and stringent control of conditions to achieve consistent quality and performance. Prussian Blues formation through the reaction of hydrochloric acid, potassium ferrocyanide, and ferric ions highlights the need for exact temperature control and mixing procedures to prevent unwanted by-products. Similarly, the production of Manganese Violet involves careful handling of manganese dioxide, phosphoric acid, and ammonium phosphate, with precise thermal management to maintain its vibrant color and stability. Mars Black, produced through the calcination of iron salts, showcases the importance of controlled high- temperature conditions to achieve the desired opacity and The production of Prussian Blue, Manganese Violet, and Mars Black pigments shows how chemistry and industry work together to create high-quality pigments. Each pigment is made through specific chemical reactions, precise measurements, and strict control of conditions to ensure they are consistent and effective. Prussian Blue is made by mixing hydrochloric acid, potassium ferrocyanide, and ferric ions, requiring careful temperature control and mixing to prevent unwanted by-products. Manganese Violet is produced by carefully handling manganese dioxide, phosphoric acid, and ammonium phosphate, with strict temperature management needed to keep its bright color and stability. Mars Black is created by heating iron salts, showing the importance of controlling high temperatures to achieve the right opacity and covering power. These processes illustrate important chemical principles like precipitation, calcination, and dispersion, which are essential for making pigments. They also highlight the need for safety and environmental care, demonstrating that sustainable practices are important in the pigment industry. The advanced methods used to make these pigments ensure they meet high standards for color, stability, and performance, which are crucial for both artistic and industrial purposes. Overall, the production of Prussian Blue, Manganese Violet, and Mars Black demonstrats the careful nature of pigment manufacturing, where following detailed steps and controlling reactions is key. Consistently producing high-quality pigments not only enhances artistic expression but also supports various industrial uses, contributing to the ongoing development and importance of these materials in modern society. This research emphasizes the necessity of maintaining strict standards in pigment production to satisfy the diverse requirements of different industries.

   Acknowledgments

   I would like to sincerely thank my research manager, Prof. Satchianand Satpute, for his unwavering guidance, support, and expertise throughout this challenging journey.their insights and developing my abilities As a researcher. We also Are thankful to all of the professors of the department of Chemical Engineering for Supplying the possibility And Help for the finishing touch of this paper . their comments, assistance with information evaluation and Considerate discussion have greatly better the exceptional of this research might not bad been possible with out the contributions And assist of those people and for that ,we are deeply Grateful.

7. REFERENCES

1. Pfaff, Gerhard. "The world of inorganic pigments." ChemTexts 8.3 (2022): 15.

2. G. Eason, B. Noble, and I. N. Sneddon, On certain integrals of Lipschitz-Hankel type involving products of Bessel functions, Phil. Trans. Roy. Soc. London, vol. A247, pp. 529551, April 1955. (references)

3. Ware, Mike. "Prussian blue: artists' pigment and chemists' sponge." (2008): 612. I. S. Jacobs and C. P. Bean, Fine particles, thin films and exchange anisotropy, in Magnetism, vol. III, G. T. Rado and H. Suhl, Eds. New York: Academic, 1963, pp. 271350.

4. K. Elissa, Title of paper if known, unpublished.

5. R. Nicole, Title of paper with only first word capitalized, J. Name

   Stand. Abbrev., in press.

6. Reus, Suzanne, et al. "Investigation of 19th and early 20th century Prussian blue production methods and their influence on the pigment composition and properties." Dyes and Pigments 225 (2024): 112093.

7. Y. Yorozu, M. Hirano, K. Oka, and Y. Tagawa, Electron spectroscopy studies on magneto-optical media and plastic substrate interface, IEEE Transl. J. Magn. Japan, vol. 2, pp. 740741, August 1987 [Digests 9th Annual Conf. Magnetics Japan, p. 301, 1982].

8. M. Young, The Technical Writers Handbook. Mill Valley, CA: University Science, 1989.

9. Pfaff, Gerhard. Inorganic pigments. Walter de Gruyter GmbH & Co KG, 2023.

10. Blanc PJ, Loret O & Goma G, 1995a, Characterization of monascidin A from Monascus as citrinin, International Journal of Food Microbiology, 27, 201-213.

11. Carvalho JC, Soccol CR & Miyaoka MF, 2001, Produ~o de pigmentos de Monascus em meios ~ base de baga~o de mandioca.

12. In: Anais do VII Encontro Regional Sul de Ci~nciae Tecnologia de Alimentos, Regional Paran~i-SBCTA-PR, ABM2-15.

13. Carvalho JC, 2004, Desenvolvimento de bioprocesso para a produ~o de pigmentos a partir de Monascus por fermenta~o em substrato s61ido.

14. Curitiba, 2004. Tese (Doutorado em Processos Biotecnol6gicos). Setor de Tecnologia- Universidade Federal do Paran~i.

15. Carvalho JC, Pandey A, Oishi BO, Brand D, Rodriguez-Leon JA & Soccol CR, 2006, Relation between growth, respirometric analysis and biopigments production from Monascus by solid-state fermentation Biochemical Engineering Journal, 29, 262-269.

16. Carvalho JC, Oishi BO, Pandey A & Soccol CR, 2005, Biopigments from Monascus: strains selection, citrinin production and color stability, Brazilian Archives of Biology and Technolgy, 48, 6. Chen MH & Johns MR, 1993, Effect of pH and nitrogen source on pigment production by Monascus purpureus, Applied Microbiology and Biotechnology, 40, 132-138.

17. Chen MI-I & Johns MR, 1994, Effect of carbon source on ethanol and pigment production by Monascus purpureus, Enzyme and Microbial Technology, 16, 584-590. Chiu W &Poon YK, 1993, Submerged production of Monascus pigments, Mycologia, 85,214-218.

18. Downham A & Collins P, 2000, Coloring our foods in the last and next millennium, International Journal of Food Science and Technology, 35, 5-22. Fabre CE, Goma G & Blanc PJ, 1993, Production and food applications of the red pigments of Monascus rubber, Journal of Food Science, 58 5, 1099-1110. FDA-U.S.