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GOLD

CAS No.: 7440-57-5
Formula: Au
Molecular Weight: 196.97
Suppliers: All(0) China Suppliers(5) Products(29)
  • Description
  • Basic Info
  • Safety Info
  • MSDS
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What is GOLD

**Introduction to Gold Atom** Gold Atom is a premium, high-performance product designed to harness the unique properties of gold at the atomic level. Engineered for cutting-edge applications in nanotechnology, electronics, and medicine, Gold Atom offers exceptional conductivity, stability, and biocompatibility. Its ultra-fine particles enable precise control in catalytic reactions, medical diagnostics, and advanced material science. Whether used in conductive inks, targeted drug delivery, or quantum computing, Gold Atom ensures superior purity and consistency. Backed by rigorous research and innovative manufacturing, it represents the future of gold-based solutions, delivering unmatched quality for industries pushing the boundaries of technology. Discover the power of atomic precision with Gold Atom.

Preparation Process: To prepare gold atoms (Au), start with high-purity gold (99.99%) in solid form. Clean the gold surface with acids (e.g., aqua regia) and rinse with deionized water. For gas-phase gold atoms, use thermal evaporation: place gold in a tungsten or ceramic crucible within a high-vacuum chamber (10⁻⁶ Torr). Heat to ~1300°C to vaporize gold, allowing atoms to deposit on a cooled substrate. Alternatively, sputter gold using argon plasma in a magnetron sputtering system. For colloidal gold nanoparticles, reduce chloroauric acid (HAuCl₄) with citrate or borohydride in aqueous solution, forming stabilized Au atoms or clusters. Handle under inert conditions to prevent oxidation.

Usage Scenarios: Gold atoms (Au) are primarily used in nanotechnology, electronics, and medicine due to their stability, conductivity, and biocompatibility. In electronics, gold atoms enhance conductive coatings and nanoscale circuitry. In medicine, they serve as contrast agents in imaging and in targeted drug delivery systems. Gold nanoparticles, composed of gold atoms, are utilized in biosensors for disease detection and in photothermal therapy for cancer treatment. Additionally, gold atoms catalyze chemical reactions, such as carbon monoxide oxidation. Their optical properties enable applications in plasmonics and optoelectronics. Gold's inertness makes it ideal for corrosion-resistant coatings and dental alloys. Research explores quantum computing applications using gold atomic structures.

GOLD Basic Info
Chemical Name GOLD
Synonyms Au;GC;GOLD POWDER;COLLOIDAL GOLD;GOLD STANDARD SOLUTION;Glod;ci77480;GOLD SOL;Gold leaf;Gold wire
CAS No. 7440-57-5
Molecular Formula Au
Molecular Weight 196.97
PSA 0.00000
LogP -0.00250
Safely Info
RTECS MD5420000
Hazard Class 6.1
Safety Statements 26-36/37/39-45-62-36/37-61-23
HS Code 3822 00 00
WGK Germany 3
Packing Group II
RIDADR UN 1789 8/PG 3
Risk Statements 36/38-43-67-65-63-48/20-38-11-34-23-52/53
Hazard Codes Xi,Xn,F,C
Caution Statement P273-P501
Hazard Declaration H412
Symbol GHS03,GHS07,GHS08
Signal Word Warning
GOLD Price
Here is a rough price range for the chemical product "gold atom" in the 18 countries listed. Note that "gold atom" is not a standard chemical product, so prices may vary widely or be unavailable in some regions:

1. **United States**: $50 - $200 per gram (depending on purity and form)
2. **China**: $40 - $180 per gram
3. **Russia**: $45 - $190 per gram
4. **Germany**: $55 - $210 per gram
5. **India**: $35 - $160 per gram
6. **Japan**: $60 - $220 per gram
7. **Brazil**: $50 - $200 per gram
8. **South Korea**: $55 - $210 per gram
9. **Philippines**: No results
10. **United Kingdom**: $60 - $220 per gram
11. **France**: $55 - $210 per gram
12. **Mexico**: $45 - $190 per gram
13. **Canada**: $50 - $200 per gram
14. **South Africa**: $40 - $180 per gram
15. **Egypt**: No results
16. **Turkey**: $45 - $190 per gram
17. **Thailand**: No results
18. **Indonesia**: No results

*Prices are approximate and depend on factors like purity, form, and market conditions. "Gold atom" is not a standard product, so availability may vary.*
MSDS
MSDS
Name: Gold powder 1.5-3 micron 99.9+% Material Safety Data Sheet
Synonym:
CAS: 7440-57-5
Section 1 - Chemical Product   MSDS Name:Gold powder 1.5-3 micron 99.9+% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
7440-57-5 Gold powder 99.9+% 231-165-9
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
  Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7440-57-5: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Powder
Color: orange-yellow - brown-yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 2800 deg C
Freezing/Melting Point: 1063 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: Au
Molecular Weight: 196.9665

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Ammonia, halogens, hydrogen peroxides.
Hazardous Decomposition Products:
Nature of decomposition products unknown..
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 7440-57-5: MD5070000 LD50/LC50:
Not available.
Carcinogenicity:
Gold powder - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 7440-57-5: 0
Canada
CAS# 7440-57-5 is listed on Canada's DSL List.
CAS# 7440-57-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7440-57-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
SDS 1.0
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