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CAS 7440-33-7 Tungsten molecular structure lightbox
CAS RN: 7440-33-7

Tungsten

Product Availability

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12 package records12 with current stock7 grade groups
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250602 100g In stock Shanghai, Shandong, Hebei Inquiry
Batchno.20250902 25g In stock Shanghai, Guangdong, Chongqing, Hebei Inquiry
Batchno.20260106 500g In stock Shanghai, Shandong Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20251122 100g In stock Inquiry
Batchno.20250602 25g In stock Inquiry
Batchno.20260126 500g In stock Inquiry
Batchno.20250808 5g In stock Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260426 80g In stock Shanghai Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260331 25g / 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250313 1g / 5g / 25g / 100g / 500g Confirm by inquiry Hebei, Shanghai, Shandong, Guangdong, Chongqing Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260422 5m / 25m / 100m Confirm by inquiry Shanghai, Shandong Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260426 Contact us Confirm by inquiry Inquiry
  • Product code: SSC-183852
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Historical Factory Record

Historical Supply Reference

This product has historical factory records. Recorded pack sizes and purity can be used as a supply reference, while project-specific availability is confirmed by inquiry.

  • Pack sizes on record: 500g
  • Available purity: ≥95%
  • Inventory rows with stock: 0
  • Bulk packaging: confirmed by inquiry
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Reference Pack Sizes

Reference pack sizes are shown below. Final availability, packaging and delivery schedule are confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 7440-33-7
Pack Size Recorded Purity Available Qty Ship From Inquiry
500g ≥95% 0 Out of Stock Shanghai Inquiry

7440-33-7 / tungsten

Standard CAS: 7440-33-7 Multi CAS: Yes
Basic Information Physical Properties Computed Properties

Basic Information

CAS
7440-33-7
Multi CAS
Yes
Molecular Formula
W
Molecular Weight
183.840000
Exact Mass
183.950933
InChI
InChI=1S/W
InChIKey
WFKWXMTUELFFGS-UHFFFAOYSA-N

Physical Properties

Melting Point
6170 °F (NIOSH, 2024) 3410 °C 6170 °F
Boiling Point
10701 °F at 760 mmHg (NIOSH, 2024) 5900 °C @ 760 mm Hg 5900 °C 10,701 °F
Density
19.3 (NIOSH, 2024) - Denser than water; will sink 18.7-19.3 @ 20 °C/4 °C; depends on extent of working. 19.3 g/cm³ 19.3
Physical Description
Dull gray powder or hard, brittle, steel-gray to white metal. Difficult to melt. Mp: 3410 °C; bp; 5900 °C. Density: 19.3 g/cm3. Used in alloys, light bulb filaments, and cutting tools. Tungsten Dust (for example, from grinding) may present a moderate fire hazard if allowed to accumulate and exposed to an ignition source. Dry Powder; Other Solid; Dry Powder, Pellets or Large Crystals Hard, brittle, steel-gray to tin-white solid; [NIOSH] GREY-TO-WHITE POWDER. Hard, brittle, steel-gray to tin-white solid.
Appearance
Steel-gray to tin-white metal; body centered cubic structure CRYSTALLINE FORM GRAY-BLACK, CUBIC Hard, brittle, steel-gray to tin-white solid.
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
1
TPSA
0.0000

LogP / Solubility

Consensus LogP
0.0000
Log S (ESOL)
-0.98
Class (ESOL)
Very soluble
Log S (Ali)
-1.07
Class (Ali)
Soluble
Log S (SILICOS-IT)
-0.85
Class (SILICOS-IT)
Very soluble

ADME

GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.84

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Leadlikeness
No
Synthetic Accessibility
1

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