Acids & Salts Available — Bulk Only

Ammonium Bicarbonate

CAS 1066-33-7 · Formula CH5NO3 · MW 79.056 g/mol

An ammonium salt that decomposes cleanly to gas — used as a leavening and blowing agent and a scale remover. It is used as a leavening (raising) agent in baked goods, as a blowing agent for foamed plastics and rubber, in ceramics, fire-extinguishing compounds, and boiler-scale removal, and in the manufacture of dyes and pigments.

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HS Code
2836.99
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
pH Adjustment
Solubility
Freely soluble in water. Insoluble in ethanol
Functional Roles
AMMONIUM BICARBONATE
BUFFERING
Applications & Use Cases
  • Leavening agent: Raising agent for crackers, cookies, and baked goods.
  • Blowing agent: Gas generator for foamed plastics and rubber.
  • Ceramics: Processing additive in ceramic manufacture.
  • Scale removal: Boiler and process scale-removing agent.
  • Dyes & pigments: Intermediate in dye and pigment manufacture.
Physical Properties
Melting Point
35 °C
Density
1.57 at 20 °C
Solubility
Freely soluble in water. Insoluble in ethanol
Vapor Pressure
58.9
pH
About 8,0 (5 % solution)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2836 . 99
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.36
Internationally harmonized (WCO HS)
Subheading 2836.99
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
1066-33-7
Molecular Formula
CH5NO3
Molecular Weight
79.056 g/mol
IUPAC Name
azanium hydrogen carbonate
INCI Name
AMMONIUM BICARBONATE
PubChem CID
InChI Key
ATRRKUHOCOJYRX-UHFFFAOYSA-N
Synonyms & Trade Names
AMMONIUM BICARBONATE Ammonium hydrogencarbonate Ammonium hydrogen carbonate Monoammonium carbonate Carbonic acid, monoammonium salt Acid ammonium carbonate Ammonium acid carbonate Ammonium hydrogencarbonat Ammonium bicarbonate (1:1) Carbonic acid, ammonium salt (1:1) azanium;hydrogen carbonate CH5NO3 ammoniumbicarbonate
Full Description

Ammonium bicarbonate (CAS 1066-33-7, NH4HCO3) is a white crystalline ammonium salt. It is used as a leavening (raising) agent in baked goods, as a blowing agent for foamed plastics and rubber, in ceramics, fire-extinguishing compounds, and boiler-scale removal, and in the manufacture of dyes and pigments.

Frequently Asked Questions

What is the use of ammonium bicarbonate?

Ammonium bicarbonate (CAS 1066-33-7, NH4HCO3) is used as a leavening agent in crackers, cookies, and other baked goods, and as a blowing agent for foamed plastics and rubber. It also serves in ceramics, fire-extinguishing compounds, boiler-scale removal, and dye and pigment manufacture.

Is ammonium bicarbonate the same as baking soda?

No. Baking soda is sodium bicarbonate (NaHCO3); ammonium bicarbonate is NH4HCO3. Ammonium bicarbonate releases ammonia and carbon dioxide on heating and is used where that volatile decomposition is desired, such as flat baked goods.

What is the pH of ammonium bicarbonate?

Aqueous ammonium bicarbonate is mildly alkaline, typically in the weakly basic range. Refer to the SDS and spec sheet for the solution pH at a given concentration.

What grades of ammonium bicarbonate are available?

Ammonium bicarbonate is supplied in food/leavening grade and technical/industrial grade depending on application. Specify your intended use so we provide the correct grade and a conforming Certificate of Analysis.

What UN number and packaging apply to bulk ammonium bicarbonate?

It ships under UN 3077 and classifies under HS 2836.99 (carbonates, other). RawSource supplies it in bulk bags and palletized quantities; request a bulk quote with CoA and SDS for your volume and destination.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.