Bismuth Vanadate Yellow Dispersion
SKU: NAP-GROUP-11380585
PRICE RANGE: US$ 21.72 - US$ 15.84
FULL PRODUCT LINEBismuth Vanadate Yellow (Pigment Yellow 184) Dispersion is a high-performance yellow pigment valued for its vibrant color, excellent opacity, and exceptional permanence. This non-toxic pigment dispersion is ideal for artists' applications and offers unparalleled color stability and compatibility across water-based mediums.
Aqueous dispersions are pigments dispersed in water ready to be mixed with water-based mediums. They make preparing waterborne paint easy; you don't hassle with powders, grinding, and calculating pigment-to-binder ratios. These dispersions are specially made for traditional painting mediums, such as egg, casein, fresco, watercolors, and distemper (glue tempera). They are also ideally suited for use with gesso for making toned grounds for drawing and painting.
| Pigment Names | |
| Common Names | English: Bismuth Vanadate Yellow French: Jaune Vanadate de Bismuth German: Bismutvanadatgelb Italian: Giallo Vanadato di Bismuto Japanese: ビスマスバナジウム黄 Russian: Бисмут ванадат жёлтый Spanish: Amarillo Vanadato de Bismuto |
Origin and History
Bismuth vanadate pigments were first synthesized in the late 20th century as environmentally safer alternatives to cadmium-based pigments. Their introduction marked a breakthrough in high-performance, non-toxic pigments, particularly for industrial coatings and artist materials.
The development of Bismuth Vanadate pigments began in the 1980s, driven by the need for environmentally friendly and non-toxic alternatives to cadmium pigments. The pigment was first patented in Germany in 1982, with further refinements occurring throughout the decade. Its vibrant yellow hue and high opacity quickly made it a valuable resource in coatings and plastics, replacing traditional heavy-metal-based pigments. Bismuth vanadate’s high performance in terms of lightfastness and weather resistance positioned it as a premium pigment for demanding applications.
Bismuth vanadate also naturally occurs in rare minerals such as pucherite, clinobisvanite, and dreyerite, though its synthetic counterpart dominates due to its consistent quality, superior properties, cost-effectiveness, and ease of large-scale production.
Additionally, in industrial contexts, it is known for its heat stability and compatibility with other pigments, making it a staple in formulating complex color palettes for high-end applications.
SourceBismuth vanadate is a synthetic pigment produced by combining bismuth, vanadium, and oxygen through controlled chemical reactions. One common preparation method involves slowly adding a solution of sodium vanadate to a solution of bismuth nitrate, resulting in a precipitate that is filtered, dried, and subsequently heated at 550–600 °C. This manufacturing process ensures consistent quality, vibrant chroma, and stable particle dispersion, making it a reliable choice for high-end applications.
Permanence and CompatibilityThis pigment boasts exceptional lightfastness, weather resistance, and chemical stability. It is compatible with a wide range of binders, including oils, acrylics, and alkyds, making it versatile across artistic and industrial applications. However, early iterations faced challenges with thermal stability and acid resistance. Recent advancements, such as developing multicoated BiVO₄@SiO₂ pigments—where silicon dioxide layers are applied to Bismuth Vanadate particles to enhance their thermal and chemical stability—have significantly improved these attributes. This innovation allows the pigment to maintain its vibrant yellow color even at temperatures up to 1200 °C, making it suitable for extreme industrial environments. These innovations have expanded its utility in automotive coatings, architectural finishes, and other demanding environments.
Applications and Future DirectionsThe unique properties of Bismuth Vanadate Yellow make it invaluable in both artistic and industrial contexts. Artists appreciate its vibrant hue, opacity, and permanence in mediums such as oil and watercolor. Industrially, its use in automotive coatings, plastics, and architectural paints continues to grow, supported by innovations that enhance its performance.
Ongoing research is focused on further improving the pigment’s durability and expanding its applications in renewable energy technologies, such as photocatalysis for water splitting. Recent studies have demonstrated promising advances in modifying the pigment’s structure to enhance its photocatalytic efficiency, potentially making it a key material for sustainable hydrogen production in solar energy systems. As these advancements progress, Bismuth Vanadate Yellow will undoubtedly solidify its position as one of the most versatile and impactful pigments available today.
Oil Absorption and GrindingBismuth Vanadate Yellow has a moderate oil absorption rate, typically requiring approximately 25–35 grams of linseed oil per 100 grams of pigment. It disperses easily during grinding, producing a smooth, consistent texture ideal for fine art and industrial applications.
ToxicityClassified as non-toxic, Bismuth Vanadate Yellow is a safer alternative to lead- or cadmium-based pigments. Cytotoxicity studies confirm its safety for human use, particularly in high-quality paints for automotive and architectural finishes. Standard safety precautions should be observed during handling to prevent inhalation or ingestion.
| Pigment Information | |
| Color: | Bright Greenish Yellow |
| Colour Index: | Pigment Yellow 184 (C.I. 771740) |
| Chemical Name: | Bismuth Vanadate |
| Chemical Formula: | BiVO₄ |
| CAS No. | 14059-33-7 |
| ASTM Lightfastness Rating | |
| Acrylic: | Not listed |
| Oil: | Not listed |
| Watercolor: | Not listed |
| Physical Properties | |
| Specific Gravity: | 6.1 |
| Refractive Index: | 2.0 – 2.2 |
| Oil Absorption: | 25–35 grams oil/100 grams pigment |