Colloidal gold is prepared by dispersing 15nm or even smaller gold nanoparticles into the water solution. The preparation will end up with a uniform neutral solution with stable color. The nano gold solution appears to be faint red, not golden brown. The gold liquid appears to be azury when in the condensed state by adding other substances. The solution is edible for human beings and totally safe for skin contact.
Product Name | MF | Purity | Particle Size | Bulk Density | Melting Point | Color |
Colloidal Gold | Au | 1000ppm | 5-15nm | 1.01 g/cm3 | 1064℃ | Purple |
Application of Colloidal Gold Nano Gold Solution :
A nanogold solution is a kind of solution containing nanogold particles, which has unique physical and chemical properties, so it has important application value in many fields. The following are some application areas of nanogold solutions:
Biomedical field: Nanogold solution has a wide range of applications in the biomedical field. For example, the nanogold solution can prepare drug carriers, which can carry drugs on the nanogold particles through surface modification to achieve the directional delivery and release of drugs. In addition, the nanogold solution can also be used to prepare biological imaging contrast agents to improve the resolution and contrast of medical imaging.
Catalytic field: Nanogold solution has excellent catalytic performance and can catalyze oxidation, reduction, hydrogenation, and other chemical reactions. Because of nanogold catalysts' high activity and selectivity, it has been widely used in the chemical industry, energy, environmental protection, and other fields.
Electronic field: Nanogold solutions can prepare high-performance electronic devices, such as nanogold wires, capacitors, nanogold solar cells, etc. In addition, nanogold solutions can also be used to manufacture biochips and sensors, improving the sensitivity and stability of devices.
Food and cosmetics: The nano gold solution can be used to prepare preservatives and antioxidants for food and cosmetics and can also be used to prepare nutritional supplements and health products.
In environmental purification, nanogold solutions can be used to prepare environmental purification products, such as nanogold catalysts and adsorbents, to remove harmful substances in air, water, and soil.
It is a global trusted brand Colloidal Gold Nano Gold Solution supplier. Please send us an inquiry regarding the latest Nano Gold Solution price Anytime.
There are many ways to produce nanogold solutions, among which the common methods include reduction, ion exchange, coordination, etc. These methods are briefly described below:
Reduction method: In the solution containing gold ions (such as chloroauric acid), by adding reducing agents (such as ascorbic acid, sodium borohydride, etc.), the gold ions are reduced to gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the reduction method is small, but aggregation may occur during preparation.
Ion exchange method: In the solution containing gold ions (such as chloroauric acid), by adding ion exchange agents (such as thiourea, ethylenediamine, etc.), the gold ions are exchanged into gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the ion exchange method is small, but the ion exchanger may affect the preparation process.
Coordination method: In the solution containing gold ions (such as chlorauric acid), by adding coordination agents (such as polyethylpyrrolidone, polyethylimide, etc.), the gold ions are coordinated into stable complexes to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the coordination method is small, but the coordination agent may affect the preparation process.
Production Method of Colloidal Gold Nano Gold Solution :
There are many ways to produce nanogold solutions, among which the common methods include reduction, ion exchange, coordination, etc. These methods are briefly described below:
Reduction method: In the solution containing gold ions (such as chloroauric acid), by adding reducing agents (such as ascorbic acid, sodium borohydride, etc.), the gold ions are reduced to gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the reduction method is small, but aggregation may occur during preparation.
Ion exchange method: In the solution containing gold ions (such as chloroauric acid), by adding ion exchange agents (such as thiourea, ethylenediamine, etc.), the gold ions are exchanged into gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the ion exchange method is small, but the ion exchanger may affect the preparation process.
Coordination method: In the solution containing gold ions (such as chlorauric acid), by adding coordination agents (such as polyethylpyrrolidone, polyethylimide, etc.), the gold ions are coordinated into stable complexes to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the coordination method is small, but the coordination agent may affect the preparation process.
Storage Condition of Colloidal Gold Nano Gold Solution:
Colloidal Gold Properties |
|
Other Names | gold colloid solution, gold nanodispersion, gold nanoparticle dispersion |
CAS No. | 7440-57-5 |
Compound Formula | Au |
Molecular Weight | 196.97 |
Appearance | Purple Liquid |
Melting Point | 1064.43℃ |
Boiling Point | 3080℃ |
Density | 19.3 g/cm3 |
Solubility in H2O | N/A |
Electrical Resistivity | 2.214 microhm-cm @ 20 °C |
Poisson's Ratio | 0.44 |
Tensile Strength | N/A |
Thermal Conductivity | 3.18 W/cm/K @ 298.2 K |
Thermal Expansion | (25 °C) 14.2 µm·m-1·K-1 |
Vickers Hardness | 216 MPa |
Young's Modulus | 79 GPa |
Colloidal Gold Health & Safety Information |
|
Signal Word | N/A |
Hazard Statements | N/A |
Hazard Codes | N/A |
Risk Codes | N/A |
Safety Statements | N/A |
Transport Information | NONH |