High Purity COPPER(II) SULFIDE｜CAS#1317-40-4
Our ultra-fine high-purity copper sulfide powder is produced by wet chemical precipitation in a low-temperature sealed reaction system. This process tightly controls free elemental copper and heavy metal impurities, complying with stringent raw material requirements for the new energy battery sector. Its well-regulated particle size distribution enhances the electrochemical activity of finished electrode materials and prevents abnormal capacity fading triggered by excessive impurities during battery charge-discharge cycles. This black fine powder boasts excellent dispersibility when mixed with conductive agents and binders for electrode slurry formulation.
Test Item | Battery Electrode Grade | Electronic Ceramic Grade |
|---|---|---|
CuS Purity | ≥99.2% | ≥99.5% |
Free Copper Impurity | ≤0.3% | ≤0.15% |
Particle Size(D50) | 1~3μm | 0.5~1.5μm |
Heavy Metal(Fe/Pb) | ≤10ppm | ≤5ppm |
Moisture | ≤0.15% | ≤0.10% |
COPPER(II) SULFIDE Chemical Properties |
Melting point | 220 °C (dec.) (lit.) |
density | 4.6 g/mL at 25 °C (lit.) |
refractive index | 1.45 |
solubility | insoluble in H2O, ethanol, dilacid, alkaline solutions |
form | powder |
color | Black |
Specific Gravity | 4.6 (20℃) |
Water Solubility | Soluble in nitric acid, ammonium hydroxide, potassium cyanide. Insoluble in water, ethanol, hydrochloric acid ,dilute acids, sulfuric acid, alkali cyanides, aqueous ammonia and alkaline solutions. |
Sensitive | Air & Moisture Sensitive |
Merck | 14,2965 |
crystal system | Six sides |
Space group | P63/mmc |
Solubility Product Constant (Ksp) | pKsp: 35.2 |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.379380.379381.634190901200.2037 |
Exposure limits | ACGIH: TWA 1 mg/m3 |
Stability: | Stable, but may be moisture senstive. Incompatible with strong acids, strong oxidizing agents. |
Cosmetics Ingredients Functions | NOT REPORTED |
InChI | 1S/Cu.S |
InChIKey | BWFPGXWASODCHM-UHFFFAOYSA-N |
SMILES | S=[Cu] |
CAS DataBase Reference | 1317-40-4(CAS DataBase Reference) |
EPA Substance Registry System | Copper sulfide (CuS) (1317-40-4) |
Safety Information |
Safety Statements | 22-24/25 |
WGK Germany | 3 |
RTECS | GL8912000 |
TSCA | TSCA listed |
HS Code | 2830908500 |
Storage Class | 11 - Combustible Solids |
Hazardous Substances Data | 1317-40-4(Hazardous Substances Data) |
High Purity COPPER(II) SULFIDE｜CAS#1317-40-4
H2: Product Application
H3: Core Usage in New Energy Battery Industry
This high purity copper(II) sulfide serves as a high-performance precursor for lithium-ion battery cathode materials. It also works as an efficient conductive additive incorporated into solid-state battery electrodes to improve electronic conductivity and stabilize the internal reaction system of cells.
H3: Extended Application in Advanced Electronic Materials
Beyond the battery sector, it acts as key feedstock for electronic ceramic parts. In precision electronics, it can be used as an auxiliary filling agent for superconducting materials, helping to adjust composite conductivity and structural stability of functional components.
H3: Other Potential Research Scenarios
Suitable for laboratory electrochemical research, photocatalytic material development and inorganic sulfide composite material formulation, widely chosen by universities and R&D institutes for new material pilot exploration.
H2: Product Strengths & Technical Advantages
H3: Strict Impurity Control
Produced with low-temperature sealed wet precipitation technology. Free copper and heavy metal impurities are kept at an ultra-low level, which avoids irregular capacity decay during battery charge-discharge cycles.
H3: Excellent Powder Properties
Ultra-fine particle size, uniform distribution and good dispersibility. It mixes smoothly with conductive agents, binders and other raw materials when preparing electrode slurry, reducing agglomeration risks.
H3: Stable Batch Consistency
Continuous production line with standardized process parameters. Every production batch maintains stable indicators, so customers can get repeatable test results for long-term R&D and mass production.
H2: Packaging, Storage & Transportation
H3: Standard Packaging Specification
Standard 25kg package: inner sealed PE bag + outer fiber drum. The inner PE bag provides moisture-proof and anti-oxidation protection; the fiber drum is pressure-resistant for stack and long-distance sea/land shipment. Custom packaging is negotiable for large bulk orders.
H3: Storage Requirements
Store in cool, dry and well-ventilated warehouse. Keep away from moisture, strong oxidants and open flame. Sealing must remain intact when not in use to prevent powder deterioration.
H3: Transport Notice
Classified as general chemical goods (refer to MSDS for full transport guidance). We support FCL, LCL and express shipment for small trial lots. All packaging is reinforced to avoid leakage during transit.
H2: Delivery Schedule
H3: In-Stock Goods
Ship out within 2–3 working days once payment and documents are confirmed.
H3: Fresh Production Order
Lead time: 7–10 working days for newly produced batches.
Note: The schedule is for reference only; peak season and logistics control may cause minor delays, we will update you timely.
H2: Supporting Documents & Quality Service
H3: Available Certification Reports
We can provide a full set of official papers to support overseas customs clearance and factory incoming inspection:
COA (Certificate of Analysis) for each batch
MSDS (Material Safety Data Sheet)
Third-party elemental composition test report
H3: Flexible Trial Order Policy
Small trial order is acceptable starting from one single 25kg drum, perfectly matching laboratory research, formula screening and pilot-scale testing. Bulk quantity ≥500kg is available for battery manufacturers’ formal mass production.
H2: Target Customers
New energy battery manufacturers (lithium battery & solid-state battery factories)
Electronic ceramics & superconducting material producers
Chemical material R&D laboratories, universities and research institutions
Fine chemical trading companies and material distributors worldwide
H2: FAQ
H3: Can I get a sample before placing the 25kg drum trial order?
Yes, small testing samples are available upon request. Sample freight will be quoted separately.
H3: Is the indicator adjustable for customized requirements?
We can discuss tailored technical specifications for large-volume stable orders according to customers’ formulation standards.
H3: What payment terms do you support?
We accept T/T as the main payment method. Other terms can be negotiated based on cooperation depth and order value.
H3: Do you support door-to-door delivery?
We can arrange shipping terms as EXW, FOB, CIF etc. We cooperate with professional freight forwarders to arrange shipment to your designated port or address.
