Elementary

Colloidal Gold Nano Gold Solution CAS 7440-57-5

Item No.: Tr-Au solution
Nano-gold uses high-purity gold as raw material, and the gold is made into a particle size below 15nm through a special new processing technology, which greatly improves the inherent characteristics of gold.
Purity: 1000ppm
Particle Size: 5-15nm
INQUIRY
Description
Colloidal Gold Properties
About Colloidal Gold Nano Gold Solution:
Nanogold refers to gold atoms or molecules less than 50 nanometers in diameter. Compared with ordinary gold bullion or gold wire, the size of nanogold is very small, but its chemical composition and properties are the same as ordinary gold. Nanogold has important application value in many fields because of its small size and special physical properties. 
The side effect of nanogold makes it have unique physical and chemical properties. For example, the color and optical properties of gold nanoparticles change significantly with the decrease in size, with an obvious blue shift phenomenon. The large surface area of nanogold makes it have higher chemical reactivity and can catalyze chemical reactions more effectively. In addition, nanogold also has good electrical conductivity and electrochemical properties, which can be used to manufacture high-efficiency and sensitive electrodes and sensors.

TRUNNANO is a trusted global Colloidal Gold Nano Gold Solution supplier. Feel free to send an inquiry about the latest Nano Gold Solution price at any time.

Gold nanoparticles colour:
Gold nanoparticles or au nanoparticles can look red, orange, or even blue. The color depends on the size and shape of the nanoparticles and the distance between them.


Product Performance of Colloidal Gold Nano Gold Solution CAS 7440-57-5:

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. 
 

Technical Parameter of Colloidal Gold Nano Gold Solution:
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.


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.


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:
1. Colloidal gold should be prevented from sunlight.
2. The product is for research and development purpose and the user must be a professional person (This person must know how to use this product.)
3. Nanoparticle solutions are suspensions of nanoparticles in water. These dispersions can be used as-is or diluted with suitable (compatible) solvents. Nanoparticles in dispersions can sometimes settle upon storage, in which case they can be mixed (shook up) before use.

Packing & Shipping of Colloidal Gold Nano Gold Solution:
We have many different kinds of packing which depend on the colloidal gold quantity.
Colloidal Gold Nano Gold Solution packing: 100ml/ bottle, 250ml/ bottle, 1000ml/ bottle or as your request.
Colloidal Gold Nano Gold Solution shipping: could be shipped out by express, by air, by air as soon as possible once payment receipt.



Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality chemical powder, please feel free to contact us and send an inquiry. ([email protected])

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
Amorphous Boron Powder | High Purity Graphite Powder | Boride Powder | 3D Printing Powder | Zinc Sulfide ZnS Powder | Oxide Powder | Silicide Powder