Carbonates

Carbonates for Food Ingredients

KOLOD's Carbonates range includes Food Grade Potassium Carbonate, Potassium Bicarbonate, and Magnesium Carbonate – each with distinct chemical properties for alkalinity control, leavening systems, and mineral applications, selected by functional performance, batch consistency, and regulatory suitability.

Food Frade Potassium Carbonate
Potassium Carbonate (K₂CO₃), E501(i), is a food-grade alkaline salt used in selected food processing applications, including pH adjustment and noodle and dough processing.
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Food Grade Potassium Bicarbonate
Jiangsu Kolod Food Ingredients Co., Ltd. manufactures and supplies food-grade potassium bicarbonate (KHCO₃) for food manufacturers, ingredient distributors, and formulators. It is used in...
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Food Grade Magnesium Carbonate
Food Grade Magnesium Carbonate is supplied as a white, odorless powder or friable material and is manufactured for food ingredient applications including flour treatment, anti-caking, leavening...
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Compare Our Carbonates

Product Name	Chemical Formula	Main Content / Assay	Primary Functional Role	Typical Applications
Food Grade Potassium Carbonate	K₂CO₃	≥ 99.0%	Alkalizing Agent, Color Development, Acidity Regulator	Cocoa processing (Dutching), noodles, wine processing, bakery
Food Grade Potassium Bicarbonate	KHCO₃	≥ 99.0%	Sodium-Free Leavening Agent, Effervescent Buffer	Sodium-free baking powders, sports drinks, low-sodium foods
Food Grade Magnesium Carbonate	MgCO₃	≥ 40.0% (as MgO)	Anti-Caking Agent, Magnesium Fortifier, Color Retainer	Table salt, dry powder mixes, dietary supplements, sports chalk

Match the Ingredient to Your Process

Choosing a carbonate starts with the function required in the finished product. The following examples help R&D, procurement and quality teams identify the right questions before supplier approval.

When alkalinity or pH adjustment is required:Food Grade Potassium Carbonate may be evaluated for suitable processes where a controlled increase in alkalinity is needed. Define the target pH, process conditions and acceptable sensory profile before setting the use level.

When a leavening reaction is required:Food Grade Potassium Bicarbonate may be evaluated in combination with a suitable food acid. Reaction timing, moisture availability and acid balance affect gas release, product volume, texture and final pH.

When mineral contribution or powder performance matters:Food Grade Magnesium Carbonate should be evaluated against the intended function and the actual commercial form. Particle properties, moisture behaviour and compatibility with the rest of the formulation may be as important as the headline assay.

Primary Functional Capabilities in Food Systems

Sodium Reduction & Chemical Leavening: Potassium Bicarbonate acts as a direct 1:1 functional replacement for Sodium Bicarbonate in bakery applications – enabling clean-label low-sodium claims without compromising crumb structure or loaf volume.

Effervescent Formulations: Ideal for beverage tablets and powdered drink mixes requiring rapid carbonation and clean dissolution – delivering consistent fizz and mouthfeel.

Dutch Processing of Cocoa: Potassium Carbonate neutralizes natural cocoa acidity – darkening color and developing rich, smooth chocolate flavor profiles.

Ramen & Noodle Texture: Enhances gluten network strength – delivering traditional springy texture and yellow hue in alkaline noodles as a Kansui substitute.

Anti-Caking & Flow Improvement: Magnesium Carbonate absorbs excess moisture in high-humidity environments – keeping powdered drink mixes, salt, and seasonings free-flowing.

Mineral Fortification: Serves as a highly bioavailable magnesium source for nutritional supplements and fortified food formulations.

What to Check Before Approving a Carbonate

Identity and grade: Verify the chemical name, formula, CAS number and food-grade documentation.

Assay and specification basis: Confirm the applicable assay method, calculation basis and acceptance limits.

Moisture and physical properties: Review moisture, particle size, bulk density or dissolution characteristics where relevant.

Functional performance: Evaluate alkalinity, neutralizing value or other application-specific properties according to the ingredient.

Impurity limits: Check the relevant contaminants against your specification and applicable food requirements.

Packaging and storage: Assess moisture protection, package integrity, handling requirements and shelf-life information.

Regulatory suitability: Verify permitted uses, use limits and labelling requirements for the target market.

Storage and Handling

Storage Environment:

Carbonates and bicarbonates are hygroscopic and sensitive to carbon dioxide and moisture in the atmosphere. Please store the goods in a cool, dry, well-ventilated warehouse with a temperature range of 10°C to 25°C and a relative humidity of less than 50%. The pallets should be raised above the ground and kept away from the exterior walls.

Packaging Integrity:

The product is packaged in 25-kilogram bags with moisture-proof PE/PP liners or custom bulk bags. Upon receipt, please inspect the bag seals and the condition of the outer packaging to ensure moisture-proof sealing performance during maritime transportation.

Safe Operations:

Follow the requirements for standard personal protective equipment (dust masks, safety glasses, protective gloves). When unloading dry powders, use a local exhaust system to reduce the accumulation of dust in the air.

Documentation & Supplier Verification

Technical Data Sheet (TDS):

Product identity, specification limits and relevant physical or chemical properties.

Certificate of Analysis (COA):

Batch-specific test results against the agreed specification.

Safety Data Sheet (SDS)

Handling, storage, exposure controls and safety information.

Food-grade and regulatory documentation

Applicable grade declarations and supporting information for the intended use and destination market.

Traceability and packaging information

Batch identification, net weight, shelf life and storage conditions, as applicable.

Production Line Quality & Regulatory Compliance

01/

Global Food Safety Standards: Fully certified under FSSC 22000, ISO 9001, ISO 22000, and HACCP management systems.

02/

Monograph Compliance: Meets or exceeds Food Chemicals Codex (FCC), EU Food Additive Specifications (E501, E504), and US FDA GRAS status.

03/

Dietary Integrity: Halal and Kosher certified batches with complete Allergen-Free, Non-GMO, and BSE/TSE statements.

04/

Purity Control: Advanced crystallization and heavy metal remediation ensure lead ≤ 1 ppm and arsenic ≤ 1 ppm.

FAQ

Q: What products are included in KOLOD's Carbonates range?

A: Food Grade Potassium Carbonate, Food Grade Potassium Bicarbonate, and Food Grade Magnesium Carbonate. Contact us to confirm current specifications and availability.

Q: What is the difference between potassium carbonate and potassium bicarbonate?

A: Potassium carbonate is more strongly alkaline; potassium bicarbonate is commonly used in acid-base leavening systems. Their reaction behavior and formulation effects differ – they are not interchangeable without technical assessment.

Q: Can potassium bicarbonate replace sodium bicarbonate?

A: Yes – As a partial or complete replacement in selected formulations, particularly for sodium reduction. Adjustments may be needed for neutralizing value, acid balance, potassium contribution, and flavor.

Q: What should I check when buying magnesium carbonate?

A: Confirm exact commercial form, hydration state, assay basis, impurity limits, physical properties, and permitted food use – as commercial products can vary in composition and behavior.

Q: Can I request a COA, TDS, and SDS?

A: Yes – Contact us to request applicable product documentation. Availability and scope confirmed for your selected product and order.

Q: Can I request a sample before placing a bulk order?

A: Yes – Sample availability depends on product and requested quantity. Share your application and destination to confirm whether a sample can be arranged.

Q: Can I order more than one carbonate product in the same shipment?

A: Yes – Combined shipment is possible depending on product availability, packaging, quantities, and transport requirements. Provide your product list and destination for review.

Q: How do I obtain an accurate quotation?

A: Provide product name, required grade, specification, estimated quantity, packaging preference, destination country, delivery terms, and required documents – we'll confirm applicable commercial details.

Q: What payment terms are available?

A: Standard terms are 30% T/T deposit to start production, 70% balance before shipment.Specific terms confirmed in the proforma invoice.

Q: How long does production and delivery take?

A: Standard production lead time is 7–15 working days after order confirmation and deposit receipt. Delivery time depends on destination and shipping method – typically 5–7 days by air, 15–30 days by sea. Exact schedule confirmed in the sales contract.

We are one of the most professional carbonates manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to wholesale bulk premium carbonates made in China here and get free sample from our factory. Customized orders are welcome.