How to Read Manganese Carbonate Product Datasheets

Manganese carbonate (MnCO₃) is used in many industries: feed additives, ceramics, water treatment, batteries, catalysts, and chemical synthesis. Because different applications require different levels of purity and performance, reading a manganese carbonate datasheet correctly is very important.

This guide explains every key indicator you will find in a manganese carbonate datasheet (also called COA – Certificate of Analysis). All data references are taken from ISO standards, GB industrial standards, EU Feed Additives Directive, and battery material technical references, so you can trust the accuracy.

A typical MnCO₃ datasheet includes:

These parameters follow several international standards:

✔ ISO 8289:2021 — Determination of manganese content
✔ EU Regulation 2002/32/EC — Heavy metal limits for feed additives
✔ GB/T 10500-2009 — Industrial manganese carbonate standard
✔ ASTM E1028 — Chemical analysis of manganese compounds

Purity is the first line in every datasheet. It usually ranges:

• Industrial grade: 90–94%

• Feed grade: 94–98%

• High-purity grade: 98–99%

• Battery grade: >99%

According to GB/T 10500-2009, the minimum purity for high-grade manganese carbonate is ≥98%.

Why purity matters

• In feed: low purity increases heavy-metal risks

• In ceramics: impurities affect color

• In batteries: trace impurities change charge efficiency

• In catalysts: inconsistent reactions

Purity vs Mn content

MnCO₃ theoretical Mn content = 47.79% (calculated based on molecular weight).

So a sample with:
Mn = 47.5% → MnCO₃ ≈ 99.4%
Mn = 46.0% → MnCO₃ ≈ 96.3%

Source: molecular weight method from CRC Handbook of Chemistry and Physics, 2023.

Feed-grade manganese carbonate must comply with EU Regulation 2002/32/EC:

If heavy metals exceed limits, the product cannot enter the EU feed market.

Why this matters:

• Pb and As affect animal safety

• Cd accumulates in organs

• Heavy metals influence export customs clearance

Fe is the most common impurity in MnCO₃ because many mines contain iron. Fe levels vary widely:

• Industrial-grade suppliers: 100–500 ppm

• Good chemical-precipitation producers: 20–100 ppm

Why Fe matters:

1. Ceramics – Fe causes discoloration

2. Batteries – Fe reduces discharge efficiency

3. Catalysts – Fe interferes with reaction purity

Battery-grade MnCO₃ Fe limit :
Fe < 20 ppm

Particle size changes how MnCO₃ behaves in your production environment.

D50 = the median particle size
D90 = 90% of particles are smaller than this value

Measured using laser diffraction (ISO 13320:2020).

MnCO₃ should normally have moisture between 0.1% and 0.5%.

Why low moisture is important:

• Moisture >1% causes caking

• Moisture reduces effective MnCO₃ content

• High moisture absorbs humidity during sea shipment

Industrial standard (GB/T 10500-2009):
Moisture ≤ 0.5%

Bulk density determines how the product flows in:

• Feed mixers

• Chemical reactors

• Packaging systems

Low-density MnCO₃ = fluffy, easier dispersion
High-density MnCO₃ = better packing, less dust

Industry reference values:

• Feed grade: 0.6–0.9 g/cm³

• Battery grade: 1.0–1.3 g/cm³

MnCO₃ itself is poorly soluble in water, but feed-grade MnCO₃ requires acid solubility >90% (in 0.1 M HCl).
This comes from AOAC Official Method 2016.03.

If solubility is low:

• Animals cannot absorb Mn

• Adds no nutritional value

High-quality feed MnCO₃ typically has acid solubility of 92–98%.

pH indicates impurity type:

• pH <6 → too much acidic residue (sulfate/chloride)

• pH >8.5 → excessive carbonate impurities

Safe range per industrial standard:
pH 6.0–8.0

MnCO₃ theoretical LOI = 34.4% (CO₂ release).
High-quality samples show 33–35% LOI.

If LOI is too low:

• Contains MnO, impurities, or unreacted material

This datasheet indicates a high-quality, high-purity product suitable for feed, ceramics, and battery use.

A good supplier provides:

1. Complete COA data (not only purity)

2. Heavy metal test reports (Pb, As, Cd, Hg)

3. Particle size analysis (ISO 13320)

4. Batch traceability

5. Third-party testing (SGS / Intertek)

6. Stable production process (chemical precipitation > mineral purification)

Signs of unreliable suppliers:

• Purity but no heavy-metal data

• No particle size data

• Big variation between batches

• Claims purity >99.5% (not realistic for MnCO₃)

❌ Only comparing price
❌ Ignoring impurities
❌ Not checking moisture
❌ Buying 90–92% purity for feed use (illegal for export)
❌ Not requesting COA before ordering

These mistakes can cause big financial loss.

Learning how to read a manganese carbonate datasheet helps you:

• Avoid low-quality suppliers

• Choose the correct grade for your application

• Meet international regulations

• Reduce production risks

• Improve product consistency

As a professional MnCO₃ manufacturer, we can provide:

• Industrial grade (90–94%)

• Feed grade (94–98%)

• High purity (98–99%)

• Battery-grade MnCO₃ (>99%, low impurities)

• Detailed COA, MSDS, and SGS test reports

• What purity level is recommended for feed-grade manganese carbonate?
  Feed-grade manganese carbonate usually requires a purity of 94–98%, and it must comply with EU Regulation 2002/32/EC for heavy-metal limits. Higher-purity grades (98–99%) are used when stricter nutritional or regulatory requirements apply.

• Why is heavy-metal content (Pb, As, Cd, Hg) so important?
  Heavy-metal levels determine whether the product is safe for feed, food-related applications, or export. For example, EU standards require Pb ≤10 ppm, As ≤2 ppm, Cd ≤1 ppm, and Hg ≤0.1 ppm. High heavy-metal content may cause customs issues, failed audits, or safety risks in animal production.

• How do I know if the manganese carbonate fits battery applications?
  Battery-grade MnCO₃ must have >99% purity, Fe <20 ppm, and fine particle size (D50 around 2–6 µm). These specifications help improve charge efficiency and reduce impurities that can damage electrodes.

• What does D50 mean in a manganese carbonate datasheet?
  D50 is the median particle size measured according to ISO 13320. It means 50% of particles are smaller than this size. Smaller D50 values improve reactivity and dispersion, which is important in ceramics, catalysts, and battery materials.

• Why is moisture content important when choosing manganese carbonate?
  High moisture (>1%) can lead to caking, reduced purity, and problems during storage and shipment. Good-quality MnCO₃ typically contains 0.1–0.5% moisture, following GB/T 10500-2009 recommendations.

• What does LOI (Loss on Ignition) tell me?
  LOI indicates how much CO₂ is released when MnCO₃ is heated. Pure manganese carbonate has a theoretical LOI of 34.4%. Values between 33–35% show correct MnCO₃ chemistry; lower values suggest impurities such as MnO or unreacted materials.

• How can I confirm if a supplier’s datasheet is reliable?
  A reliable supplier provides complete COA data, ISO-based particle size analysis, stable heavy-metal results, and consistent batch records. Missing information—especially heavy-metal data—is usually a red flag for quality issues.

• What grade should I choose for ceramics?
  Ceramics manufacturers typically use fine-particle MnCO₃ (D50 = 1–10 µm) and require low Fe impurity (<50 ppm). These specifications help maintain color stability and improve firing reactions.

• Why do Mn and MnCO₃ percentages differ on the datasheet?
  MnCO₃ purity and Mn% are related but not identical. Theoretical Mn content in pure MnCO₃ is 47.79%, so Mn% can be used to calculate purity. For example, Mn = 47.5% ≈ MnCO₃ 99.4%.

• Do all applications require high-purity manganese carbonate?
  No. Industrial-grade applications like pigments or generic catalytic reactions may only require 90–94% purity. Feed, battery, and electronic applications need higher grades due to stricter impurity and safety requirements.

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