Aluminum oxide Alumina powder for Electric vacuum tube shell ceramic Al2O3
item value
Classification ALUMINA
CAS No. 1344-28-1
Other Names Alumina
MF Al2O3
EINECS No. 215-691-6
Grade Standard Electron Grade, Industrial Grade, Reagent Grade
Purity 99.5%
Appearance White powder
Application electronic ceramics
Color White
Grade Industrail Grade
Density 3.5 g/cm3
Melting point 2054
Boiling Point 2980
Molecular Weight 101.96
Shape Ionische
Water Solubility Hard
Packing 25 Kg Pp Bag or plastic barrel
Sample Availiable
Portland Cement - OPC / SRC / White
Product Detailed Description by Trade Rock for Trading and Mining
Product Name:
Portland Cement (Ordinary / Sulphate-Resistant / White)
Origin:
Egypt
Producer & Exporter:
Trade Rock for Trading and Mining
Product Description:
Trade Rock supplies high-quality Portland Cement for a wide range of construction and infrastructure
applications. Our cement products meet ASTM and EN standards, offering reliable strength, durability, and
workability. We provide Ordinary Portland Cement (OPC), Sulphate-Resistant Cement (SRC), and White
Cement, tailored to meet the needs of our global clients.
Key Specifications:
- Types: OPC 42.5N / 52.5N (EN 197-1), ASTM C150 Type I & II, SRC, White Cement
- Setting Time (Initial): >= 60 min
- Compressive Strength (28 days): >= 42.5 or 52.5 MPa depending on grade
- Fineness (Blaine): >= 320 m�?�²/kg
- Clinker Content: >= 90%
- SO3: <= 3.5%
- MgO: <= 5.0%
- Form: Powder
- Color: Grey / White (depending on type)
- Packaging: 50 kg PP bags, 1-ton jumbo bags, or bulk
Applications:
- Residential and commercial construction
- Concrete ready-mix and precast
- Infrastructure: roads, bridges, dams
- Coastal/marine structures (SRC)
- Decorative and aesthetic construction (White Cement)
Competitive Advantages:
- High early and long-term strength
- Suitable for various environmental conditions
- Conforms to ASTM, BS EN, and global cement standards
- Reliable supply chain and port logistics
Logistics & Delivery:
- FOB Port: Alexandria, Damietta, or Sokhna, Egypt
- Minimum Order Quantity: 5,000 MT
- Monthly Supply Capacity: 150,000+ MT
- Delivery Time: 10-20 days from order confirmation
Compliance & Certification:
- ISO 9001:2015 Certified
- SGS, Bureau Veritas, or Intertek inspection available
- Conforms to ASTM C150 / EN 197-1 standards
Storage & Handling:
- Store in dry, moisture-free areas
- Use proper stacking and dust-control practices
India is World’s Second largest Cement Producer. India is contributing tremendously to the Supply of Cement across the Globe. The Capacity of Indian market to produce and supply cement is increasing at swift pace.
We source the best quality and from the best brands. We supply OPC, PPC, Slag cement, White Cement and Sulfate Resisting Cement.
WHITE CEMENT
(CEM I 52.5 N, CEM I 52.5 R, and CEM II/B-LL 42.5 N)
We are supplying three white cement products (CEM I 52.5 N, CEM I 52.5 R, and CEM II/B-LL 42.5 N). Moreover, we are also offering flexible and attractive delivery in 25 / 40 / 50 Kg Bags, Sling bags, Jumbo bags, Shrink Wrap, Bulk.
Specifications (Meeting EN 197 European Specifications):
CEM I 52.5 NCEM I 52.5 R
CEM II/B-LL 42.5 N
MgO
0.23 % MgO
SO3
2.8 % SO3
2.2 % SO3
1.9 % SO3
Cl
0.065 % Cl
0.09 % Cl
0.055 % Cl
LOSS ON IGNITION3.6 % LOSS ON IGNITION4.0 % LOSS ON IGNITION11.9 % LOSS ON IGNITION
INSOLUBLE RESIDUE0.30 % INSOLUBLE RESIDUE0.21 %INSOLUBLE RESIDUE0.28 % INSOLUBLE RESIDUE
FINENESS (BLAINE)420 m2/kg FINENESS (BLAINE)527 m2/kg FINENESS (BLAINE)
SOUNDNESS
1.1 mm SOUNDNESS
3.0 mm SOUNDNESS1.6 mm SOUNDNESS
COMPRESSIVE STRENGTH
2 DAYS
30.9 MPa - 2 DAYS
33-34 MPa- 2 DAYS20 MPa- 2 DAYS
28 DAYS
68.0 MPa - 28 DAYS
67.0 MPa- 28 DAYS45.5 MPa- 28 DAYS
INITIAL SETTING TIME138 minutes195 minutes149 minutes
REFLECTANCE (Ry)87% Ry87% Ry87.3 % Ry
WATER SOLUBLE Cr CONTENTless than 2 mg/kgless than 2 mg/kgless than 2 mg/kg
