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structure of 7440-33-7

Tungsten(CAS 7440-33-7)

CAS No.: 7440-33-7 Brand: MolBest
M. Ft.: W Cat. No: G9339904
M. Wt.: 183.84 MDL: MFCD00011461
Storage: Store in a cool,dry area. Use: For laboratory research use only
UN No.: UN 3089 4.1 /PG II
Purity Grade Package Stock Price Quantity
99.9%,200nm,powder
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Extra Pure 5G In Stock 11 USD
99.9%,200nm,powder
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Extra Pure 25G In Stock 28 USD
99.9%,200nm,powder
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Extra Pure 100G In Stock 84 USD
99.9%,200nm,powder
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Extra Pure 500G In Stock 466 USD
99.9%,200nm,powder
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Extra Pure 2.5KG In Stock 1819 USD
99.9%,50nm
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Extra Pure 1G In Stock 5 USD
99.9%,50nm
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Extra Pure 5G In Stock 13 USD
99.9%,50nm
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Extra Pure 25G In Stock 38 USD
99.9%,50nm
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Extra Pure 100G In Stock 96 USD
99.9%,50nm
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Extra Pure 500G In Stock 527 USD
99.95%,1-3μm
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Extra Pure 25G In Stock 12 USD
99.95%,1-3μm
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Extra Pure 100G In Stock 22 USD
99.95%,1-3μm
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Extra Pure 500G In Stock 132 USD
99.95%,1-3μm
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Extra Pure 2.5KG In Stock 620 USD
99.95%,1-3μm
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Extra Pure 10KG In Stock 2416 USD
99.95%,325mesh
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Extra Pure 25G In Stock 11 USD
99.95%,325mesh
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Extra Pure 100G In Stock 23 USD
99.95%,325mesh
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Extra Pure 500G In Stock 82 USD
99.95%,325mesh
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Extra Pure 2.5KG In Stock 493 USD
99.95%,325mesh
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Extra Pure 10KG In Stock 1724 USD
99.95%,40mesh
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Extra Pure 1KG In Stock 822 USD
99.99%
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Extra Pure 25G In Stock 25 USD
99.99%
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Extra Pure 100G In Stock 98 USD
99.99%
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Extra Pure 500G In Stock 478 USD
99.99%,5-25μm,powder,spherical
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Extra Pure 5G In Stock 8 USD
99.99%,5-25μm,powder,spherical
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Extra Pure 25G In Stock 17 USD
99.99%,5-25μm,powder,spherical
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Extra Pure 100G In Stock 49 USD
99.99%,5-25μm,powder,spherical
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Extra Pure 500G In Stock 299 USD
99.99%,5-25μm,powder,spherical
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Extra Pure 2.5KG In Stock 1463 USD
powder,99.95%,200mesh
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Extra Pure 25G In Stock 11 USD
powder,99.95%,200mesh
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Extra Pure 100G In Stock 20 USD
powder,99.95%,200mesh
Documents:COASDS
Extra Pure 500G In Stock 78 USD
powder,99.95%,200mesh
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Extra Pure 2.5KG In Stock 442 USD
powder,99.95%,200mesh
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Extra Pure 10KG In Stock 1561 USD
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Applications of 7440-33-7

Tungsten's unique properties lend themselves to various applications:

  • Cutting Tools: Tungsten carbide is widely used in manufacturing cutting tools due to its hardness.
  • Electronics: Tungsten filaments are used in light bulbs and electron emitters due to their high melting point.
  • Aerospace: Used in components that require high-temperature resistance, such as rocket nozzles and combustion chambers .
  • Alloys: Tungsten is alloyed with other metals to enhance strength and resistance to wear .

Physical and chemical properties of 7440-33-7

Boiling Point

10,701 °F

Density

19.3

Exact Mass

183.95100

Exposure Limits

ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)

Flash Point

-23ºC

Melting Point

6170 °F

Merck

13,9884

Molecular Formula

W

Molecular Weight

183.84000

resistivity

4.9 μΩ-cm, 20°C

Stability

Stable. Dust is flammable, though not likely to present a hazard if normal good practice is used.

Storage condition

no restrictions.

Vapour Pressure

0 mmHg (approx)

Water Solubility

insoluble

Retrosynthesis analysis of 7440-33-7


Q&A for CAS 7440-33-7

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.

8. Do you have products in stock?
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.

12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.

Download SDS of 7440-33-7

Pictograms

Signal Word

Danger

Hazard Statements

H228 Flammable solid
H252 Self-heating in large quantities; may catch fire

Safety Data Sheet

Operate under the ISO 9001 system