Niobium(CAS 7440-03-1)
UN No.:
UN 1383 4.2 /PG I
| Purity | Grade | Package | Stock | Price | Quantity |
| 99.8%(removed Ta,Ta≤500ppm),270mesh,powder | RG | 5G | In Stock | 5 USD
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| 99.8%(removed Ta,Ta≤500ppm),270mesh,powder | RG | 25G | In Stock | 15 USD
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| 99.8%(removed Ta,Ta≤500ppm),270mesh,powder | RG | 100G | In Stock | 36 USD
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| 99.8%(removed Ta,Ta≤500ppm),270mesh,powder | RG | 500G | In Stock | 160 USD
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| 99.8%(removed Ta,Ta≤500ppm),270mesh,powder | RG | 2.5KG | In Stock | 1051 USD
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| 99.9%,100nm | Extra Pure | 1G | In Stock | 9 USD
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| 99.9%,100nm | Extra Pure | 5G | In Stock | 23 USD
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| 99.9%,100nm | Extra Pure | 25G | In Stock | 94 USD
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| 99.9%,100nm | Extra Pure | 100G | In Stock | 319 USD
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| 99.9%,50nm | Extra Pure | 1G | In Stock | 12 USD
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| 99.9%,50nm | Extra Pure | 5G | In Stock | 31 USD
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| 99.9%,50nm | Extra Pure | 25G | In Stock | 134 USD
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| 99.9%,50nm | Extra Pure | 100G | In Stock | 424 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 1G | In Stock | 4 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 5G | In Stock | 8 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 25G | In Stock | 18 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 100G | In Stock | 63 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 500G | In Stock | 263 USD
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| powder，99.99%（removed Ta）,Ta≤500ppm，-325mesh | Extra Pure | 2.5KG | In Stock | 1726 USD
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| Bulk Packaging | 125KG | substantially lower unit cost than small-pack SKUs. Contact us for a fast quotation. | |||
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Applications of 7440-03-1
Niobium has a wide range of applications across various industries:
- Alloys: It is extensively used in high-strength low-alloy steels and nickel-based superalloys.
- Superconductors: Niobium-tin and niobium-titanium alloys are utilized in superconducting magnets for particle accelerators and MRI machines.
- Nuclear Reactors: Its compatibility with uranium makes it suitable for cladding materials in nuclear reactors.
- Catalysts: Niobium compounds are being explored for catalytic applications in chemical processing due to their unique properties .
Physical and chemical properties of 7440-03-1
Boiling Point |
4742 °C(lit.) |
|---|---|
Density |
8.57 g/mL at 25 °C(lit.) |
Exact Mass |
92.90640 |
Exposure Limits |
ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin) OSHA: TWA 3 ppm NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3) |
Melting Point |
2468 °C(lit.) |
Merck |
13,6584 |
Molecular Formula |
Nb |
Molecular Weight |
92.90640 |
resistivity |
13-16 μΩ-cm, 20°C |
Stability |
Stable. Incompatible with strong bases, strong oxidizing agents, halogens, oxygen. |
Storage condition |
-20°C |
Water Solubility |
Insoluble in water. |
Q&A for CAS 7440-03-1
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?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
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 7440-03-1
Pictograms |
 |
|---|---|
Signal Word |
Danger |
Hazard Statements |
H228 Flammable solid |
Safety Data Sheet |
Download COA of 7440-03-1
Operate under the ISO 9001 system
