Khemical Calcium Carbonate - Tech Grade - 50 Pound (56/Plt)
About this product
Khemical Calcium Carbonate is a technical-grade calcium carbonate (CaCO3) soil amendment and calcium source, supplied as a dry solid in 50-pound bags (56 bags per pallet). It functions as agricultural limestone to neutralize soil acidity and raise soil pH, and as a source of plant-available calcium. Pure calcium carbonate is the reference standard for liming materials, assigned a Calcium Carbonate Equivalent (CCE) of 100%, against which all other liming materials are rated.
Chemical Composition and Properties
| Property | Value |
|---|---|
| Chemical name | Calcium carbonate |
| Formula | CaCO3 |
| CAS No. | 471-34-1 |
| Molar mass | 100.09 g/mol |
| Appearance | White powder/granular solid |
| Density | Approximately 2.71 g/cm3 |
| Grade | Technical |
| Water solubility | Very low (approximately 100 lb dissolves per acre-inch of water) |
| Calcium Carbonate Equivalent (CCE) | 100% (reference standard) |
Definitions
- Calcium Carbonate Equivalent (CCE) — the acid-neutralizing capacity of a liming material expressed as a percentage relative to pure calcium carbonate.
- Fineness / mesh — particle-size grading that governs reaction speed: material passing a 50-mesh sieve is considered approximately 100% effective, material passing 8-mesh but held on 50-mesh approximately 40% effective, and material coarser than 8-mesh approximately 10% effective.
Functional Mechanism
Calcium carbonate neutralizes active soil acidity (dissolved hydrogen ions) and the reserve acidity held on clay and organic-matter exchange sites. In soil solution it reacts according to CaCO3 + 2 H+ to Ca2+ + CO2 + H2O, consuming hydrogen ions, releasing calcium cations that displace hydrogen on the soil exchange complex, and raising pH. Reaction rate depends on particle surface area (fineness) and degree of incorporation into the soil.
Target Applications
- Correction of acidic soils to raise pH toward the optimal range for most crops (approximately pH 6.2 to 6.5).
- Supplemental calcium nutrition for root development and crop quality.
- Industrial and formulation use as a pH buffer, filler, and acid-neutralizing agent.
Application Specifications
Application rate is determined by soil test and target pH; rates are conventionally expressed relative to a 100% CCE standard, so this material applies at the soil-test recommendation without a CCE adjustment factor. Incorporate into the tillage layer for fastest response. Research indicates little additional benefit to grinding finer than 50 to 60 mesh.
Compatibility
Reacts with acids, releasing carbon dioxide (effervescence); do not co-store or pre-mix with acidic products. Compatible with most dry fertilizer programs.
Storage and Handling
Store dry to prevent caking. Minimize airborne dust during handling.
Safety and First Aid
Low-hazard, non-corrosive solid. Dust may cause mechanical irritation to eyes and respiratory tract; use eye protection and a dust mask when handling in dusty conditions. Flush eyes with water on contact; move to fresh air if dust is inhaled.
Details
Khemical Calcium Carbonate is a technical-grade calcium carbonate (CaCO3) soil amendment and calcium source, supplied as a dry solid in 50-pound bags (56 bags per pallet). It functions as agricultural limestone to neutralize soil acidity and raise soil pH, and as a source of plant-available calcium. Pure calcium carbonate is the reference standard for liming materials, assigned a Calcium Carbonate Equivalent (CCE) of 100%, against which all other liming materials are rated.
Chemical Composition and Properties
| Property | Value |
|---|---|
| Chemical name | Calcium carbonate |
| Formula | CaCO3 |
| CAS No. | 471-34-1 |
| Molar mass | 100.09 g/mol |
| Appearance | White powder/granular solid |
| Density | Approximately 2.71 g/cm3 |
| Grade | Technical |
| Water solubility | Very low (approximately 100 lb dissolves per acre-inch of water) |
| Calcium Carbonate Equivalent (CCE) | 100% (reference standard) |
Definitions
- Calcium Carbonate Equivalent (CCE) — the acid-neutralizing capacity of a liming material expressed as a percentage relative to pure calcium carbonate.
- Fineness / mesh — particle-size grading that governs reaction speed: material passing a 50-mesh sieve is considered approximately 100% effective, material passing 8-mesh but held on 50-mesh approximately 40% effective, and material coarser than 8-mesh approximately 10% effective.
Functional Mechanism
Calcium carbonate neutralizes active soil acidity (dissolved hydrogen ions) and the reserve acidity held on clay and organic-matter exchange sites. In soil solution it reacts according to CaCO3 + 2 H+ to Ca2+ + CO2 + H2O, consuming hydrogen ions, releasing calcium cations that displace hydrogen on the soil exchange complex, and raising pH. Reaction rate depends on particle surface area (fineness) and degree of incorporation into the soil.
Target Applications
- Correction of acidic soils to raise pH toward the optimal range for most crops (approximately pH 6.2 to 6.5).
- Supplemental calcium nutrition for root development and crop quality.
- Industrial and formulation use as a pH buffer, filler, and acid-neutralizing agent.
Application Specifications
Application rate is determined by soil test and target pH; rates are conventionally expressed relative to a 100% CCE standard, so this material applies at the soil-test recommendation without a CCE adjustment factor. Incorporate into the tillage layer for fastest response. Research indicates little additional benefit to grinding finer than 50 to 60 mesh.
Compatibility
Reacts with acids, releasing carbon dioxide (effervescence); do not co-store or pre-mix with acidic products. Compatible with most dry fertilizer programs.
Storage and Handling
Store dry to prevent caking. Minimize airborne dust during handling.
Safety and First Aid
Low-hazard, non-corrosive solid. Dust may cause mechanical irritation to eyes and respiratory tract; use eye protection and a dust mask when handling in dusty conditions. Flush eyes with water on contact; move to fresh air if dust is inhaled.