FAQ
1. How do you ensure batch-to-batch quality consistency?
We apply strict raw material control, in-process testing, and final inspection to ensure stable chemical composition and physical properties across batches.
2. Can you provide a complete Certificate of Analysis (COA) for each shipment?
Yes, every shipment is supplied with a detailed COA including purity, impurity limits, and physical parameters.
3. Which international standards do your manganese products comply with?
Our products are manufactured in accordance with ASTM, ISO, GB, and customer-specific technical specifications.
4. How do you handle quality claims or non-conformance issues?
We have a clear quality claim process including root cause analysis, corrective actions, and compensation if required.
5. What is your typical lead time for bulk orders?
Lead time usually ranges from 2–4 weeks depending on product type, order volume, and packaging requirements.
6. What is the typical MnO₂ purity you can supply?
We offer MnO₂ with purity levels ranging from 85% to over 91%, depending on application needs.
7. How do you control impurity elements like Fe, Pb, and heavy metals?
Impurities are strictly controlled through raw material selection and purification processes, with defined ppm limits.
8. Is your manganese dioxide suitable for battery applications?
Yes, we supply MnO₂ grades designed for dry batteries and certain lithium battery applications.
9. What particle size distribution can you offer for MnO₂?
We can customize particle size based on application, including fine powder and controlled granule sizes.
10. How does MnO₂ performance affect battery lifespan?
Stable MnO₂ purity and structure help improve discharge efficiency and reduce internal resistance.
11. What Mn content does your manganese carbonate typically have?
Our MnCO₃ typically contains 44–48% Mn, depending on grade.
12. Is your manganese carbonate suitable for fertilizer use?
Yes, we supply low-heavy-metal grades compliant with agricultural application requirements.
13. How do you ensure low chloride and sulfate levels?
Controlled precipitation and washing processes are used to minimize residual chlorides and sulfates.
14. Can manganese carbonate be used as a precursor for MnO₂ or MnSO₄?
Yes, MnCO₃ is commonly used as a raw material for further manganese compound processing.
15. How stable is manganese carbonate during storage and transportation?
When stored in dry, sealed conditions, MnCO₃ remains chemically stable with minimal degradation.
16. What water treatment applications is manganese sand suitable for?
It is widely used for iron and manganese removal in groundwater and drinking water treatment systems.
17. What is the effective particle size range of your manganese sand?
Typical sizes include 0.6–1.2 mm, 1–2 mm, and customized grading upon request.
18. How does uneven particle size affect filtration performance?
Non-uniform grading can cause channeling, reduced contact time, and lower removal efficiency.
19. What is the MnO₂ coating percentage on your manganese sand?
Our manganese sand usually contains 35–45% MnO₂ coating, depending on grade.
20. How long is the service life of manganese sand filter media?
With proper backwashing and operation, service life typically ranges from 3 to 5 years.
21. What purity levels are available for manganese monoxide?
We offer MnO with purity levels above 98% for industrial and ceramic applications.
22. How does MnO influence ceramic color and glaze stability?
MnO acts as a coloring and fluxing agent, influencing hue consistency and melting behavior.
23. Is your MnO suitable for metallurgical applications?
Yes, it can be used as an alloying or chemical intermediate in metallurgical processes.
24. How do you control oxidation during MnO production?
Production is conducted under controlled conditions to prevent over-oxidation to Mn₃O₄ or MnO₂.
25. What packaging options are available for MnO?
Standard packaging includes 25 kg bags, jumbo bags, or customized packaging solutions.
26. What purity grades of manganese sulfate do you supply?
We supply industrial, feed, and battery-grade manganese sulfate.
27. Is your manganese sulfate suitable for agricultural micronutrient use?
Yes, it meets micronutrient standards with controlled heavy metal limits.
28. What is the typical Mn content in MnSO₄?
Mn content typically ranges from 31.8% to 32.5%, depending on hydration state.
29. How soluble is your manganese sulfate in water?
Our MnSO₄ offers excellent water solubility, ensuring effective nutrient uptake.
30. Can manganese sulfate be used in lithium battery cathode materials?
Yes, battery-grade MnSO₄ is widely used as a precursor for cathode materials.
31. What packaging options do you offer for international shipping?
We offer 25 kg bags, 1 MT big bags, palletized packaging, and customized solutions.
32. Can you support FCL and LCL shipments?
Yes, we support both Full Container Load (FCL) and Less than Container Load (LCL).
33. How do you ensure moisture control during sea transportation?
Moisture-proof inner liners and desiccants are used when necessary.
34. What Incoterms do you commonly work with?
Common terms include EXW, FOB, CFR, and CIF.
35. How do raw material price fluctuations affect your pricing?
We offer short-term price validity and transparent cost communication.
36. Can you customize specifications based on our application?
Yes, we regularly customize purity, particle size, and impurity limits.
36. Can you customize specifications based on our application?
Yes, we regularly customize purity, particle size, and impurity limits.
37. Do you provide technical support before and after sales?
Yes, technical consultation is available throughout the cooperation process.
38. Can you supply samples for testing before bulk orders?
Yes, samples are available with corresponding lab data.
39. How do you support long-term supply stability?
We maintain raw material reserves and stable production scheduling.
40. Do you sign long-term supply agreements?
Yes, long-term contracts can be discussed for strategic customers.
41. Are your products environmentally compliant?
Yes, production follows local environmental regulations and safety standards.
42. Can you provide MSDS for all products?
Yes, MSDS is available for every manganese product we supply.
43. How do you ensure traceability of your products?
Each batch is traceable from raw material to finished product.
44. Do you allow third-party inspections?
Yes, SGS, BV, or other third-party inspections are welcome.
45. What markets do you mainly supply?
We supply to battery, chemical, fertilizer, water treatment, and ceramic industries worldwide.
46. Why should we choose your company over other suppliers?
We offer stable quality, transparent data, flexible customization, and reliable supply.
47. How do you reduce procurement risks for buyers?
Through clear specifications, traceable batches, and responsive technical support.
48. Can you support pilot projects or trial production?
Yes, we frequently support pilot-scale and trial orders.
49. How do you handle urgent orders?
Priority production and flexible logistics solutions can be arranged.
50. What information do you need from us to provide an accurate quotation?
Application, specification, quantity, packaging, and delivery terms.