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structure of 7440-57-5

Gold(CAS 7440-57-5)

CAS No.: 7440-57-5 Brand: MolBest
M. Ft.: Au Cat. No: G9942013
M. Wt.: 196.97 MDL: MFCD00003436
Storage: Store in a cool,dry area. Use: For laboratory research use only
UN No.: UN 1789 8 /PG III
Purity Grade Package Stock Price Quantity
99.99%,powder
Documents:COASDS
Extra Pure 100MG In Stock 46 USD
99.99%,powder
Documents:COASDS
Extra Pure 250MG In Stock 97 USD
99.99%,powder
Documents:COASDS
Extra Pure 1G In Stock 383 USD
99.99%,powder
Documents:COASDS
Extra Pure 5G In Stock 1902 USD
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Applications of 7440-57-5

Gold's unique properties lend themselves to a wide range of applications:

  • Jewelry: Approximately 75% of mined gold is used in jewelry due to its aesthetic appeal and resistance to tarnish.
  • Electronics: Gold is used for plating electrical contacts due to its excellent conductivity and resistance to corrosion.
  • Medicine: Gold compounds are employed in treating rheumatoid arthritis and are being researched for potential cancer therapies.
  • Nanotechnology: Gold nanoparticles are utilized in drug delivery systems, imaging, and diagnostics due to their biocompatibility and ease of functionalization.

Physical and chemical properties of 7440-57-5

Boiling Point

2700 deg C

Density

19.3

Exact Mass

196.966507

Exposure Limits

NIOSH: IDLH 25 mg/m3

Flash Point

4 °C

Index of Refraction

n20/589.3 1.523

Melting Point

1064.76 deg C

Merck

13,4529

Molecular Formula

Au

Molecular Weight

196.967

Odor

No odor

pH

6-8

pH Range

6 - 8

resistivity

2.05 μΩ-cm, 0°C

Sensitivity

Light Sensitive

Stability

Stable. May react with halogens, strong oxidizing agents, ammonia, hydrogen peroxide. Reaction with ammonia or hydrogen peroxide may form explosive materials.

Storage condition

2-8°C

Vapour Pressure

VP: 1 Pa @ 1373 °C; 10 Pa @ 1541 °C; 100 Pa at 1748 °C; 1 kPa @ 2008 °C; 10 kPa @ 2347 °C; 100 kPa @ 2805 °C

Water Solubility

H2O: soluble

Retrosynthesis analysis of 7440-57-5

  • Route#1

    Cas:37131-30-9
    Cas:7440-57-5
  • Route#2

    Cas:14951-50-9
    Cas:7440-57-5
  • Route#3

    Cas:7440-57-5

Q&A for CAS 7440-57-5

1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.

2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.

3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.

4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.

5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.

6. Are volume discounts available?
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7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.

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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.

9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.

10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.

11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.

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Operate under the ISO 9001 system