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    Related: Buffering Agent Sodium Bicarbonate Sodium Lactate
    • Ammonium Bicarbonate CAS 1066-33-7

    Ammonium Bicarbonate CAS 1066-33-7

    Ammonium Bicarbonate, also called ammonium hydrogen carbonate, CAS 1066-33-7, is a heat-activated leavening agent supplied as food grade E503ii or technical grade. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 1066-33-7
    • Synonyms: Ammonium hydrogen carbonate, Acid ammonium carbonate, Carbonic acid monoammonium salt, Ammonium acid carbonate
    • Einecs: 213-911-5
    • Molecular Formula: NH₄HCO₃
    • Grade: Food Grade (E503ii) / Technical Grade
    • Package: 25kg Plastic woven bag (PP) with double PE liner to prevent volatilization.
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    Product Description

    Ammonium Bicarbonate, also called ammonium hydrogen carbonate, has the molecular formula NH4HCO3, CAS number 1066-33-7 and EINECS number 213-911-5.

    Synonyms: Ammonium hydrogen carbonate; Acid ammonium carbonate; Carbonic acid monoammonium salt; Ammonium acid carbonate.

    CAS: 1066-33-7.

    It has the molecular formula NH4HCO3 and a molecular weight of 79.06 g/mol.

    It is a white crystalline solid with a mild ammonia odor.

    When heated above about 36 °C, it decomposes into ammonia, carbon dioxide and water vapor.

    This heat-only reaction is useful in thin, low-moisture baked products such as crackers, cookies and biscuits.

    The gases escape during baking and leave little alkaline residue.

    Ammonium bicarbonate is preferred for thin baked products where a clean, crisp texture is needed and no sodium-based residue is desired.

    It is not ideal for thick products that may retain ammonia odor.

    Technical-grade material is used as a nitrogen source in agriculture and some fermentation processes.

    It is also used as a foaming agent or chemical reagent in plastics, rubber, ceramics and dyeing.

    A typical specification includes assay of 99.2–100.5% as NH4HCO3 and non-volatile matter of at most 0.05%.

    Chloride, sulfate, iron, heavy metals, lead and arsenic limits are controlled to meet the applicable food standard.

    Confirm appearance, assay, chloride, sulfate, non-volatile matter, iron, heavy metals and residue limits.

    Store in a cool, dry, well-ventilated area away from heat, moisture and direct sunlight; keep the package sealed.

    Confirm packaging with the requested quantity and destination requirements.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended use, required grade and specification, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Ammonium Bicarbonate CAS 1066-33-7?

      A: Ammonium Bicarbonate, also called ammonium hydrogen carbonate, has the molecular formula NH4HCO3, CAS number 1066-33-7 and EINECS number 213-911-5. It is a white crystalline solid with a mild ammonia odor and is supplied as food grade E503ii or technical grade.
    • Q:

      How does Ammonium Bicarbonate work as a leavening agent?

      A: When heated above about 36 C, Ammonium Bicarbonate decomposes into ammonia, carbon dioxide and water vapor. This heat-only reaction is useful in thin, low-moisture baked products such as crackers, cookies and biscuits because the gases can escape during baking and leave little alkaline residue.
    • Q:

      How is Ammonium Bicarbonate different from Sodium Bicarbonate?

      A: Sodium bicarbonate generally requires an acid to release carbon dioxide, while ammonium bicarbonate is activated by heat alone and decomposes into gases. Ammonium bicarbonate is preferred for thin baked products where a clean, crisp texture is needed and no sodium-based residue is desired, but it is not ideal for thick products that may retain ammonia odor.
    • Q:

      What are the main non-food applications of Ammonium Bicarbonate?

      A: Technical-grade Ammonium Bicarbonate is used as a nitrogen source in agriculture and some fermentation processes, and as a foaming agent or chemical reagent in plastics, rubber, ceramics and dyeing. It is also used in dry-powder fire-extinguishing compounds and selected industrial pH-adjustment applications.
    • Q:

      What should be checked when selecting food-grade Ammonium Bicarbonate?

      A: For food use, confirm that the material is E503ii grade and that assay, chloride, sulfate, non-volatile matter, iron, heavy metals, lead and arsenic meet the applicable food standard. Food-grade material should be fine enough for rapid and uniform decomposition in the intended baked product.
    • Q:

      How should Ammonium Bicarbonate CAS 1066-33-7 be stored?

      A: Store Ammonium Bicarbonate in a cool, dry, well-ventilated area away from heat, moisture and direct sunlight. Because decomposition begins above about 36 C and increases with humidity, the package should remain sealed and be protected from temperature excursions to reduce ammonia loss and caking.

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