Citric acid monohydrate
CAS 5949-29-1
EC 611-842-9
Formula C6H8O7.H2O
MW 210.14 g/mol
Sweeteners & Food Additives Food & NutritionPharmaceuticals & HealthcarePersonal Care & CosmeticsWater Treatment pH Regulation & BufferingFlavoring & AcidulantChelation & SequestrationPreservation & Biocide
Description
Citric acid monohydrate (CAS 5949-29-1) is the water-containing crystalline form of citric acid, a naturally occurring organic acid derived from citrus fermentation. It is commercially known under designations such as Citronsyra Mono and carries the HS code 29181400. It differs from the anhydrous grade in water content and dissolution behaviour.
In food and beverage manufacturing, it lowers pH to inhibit microbial growth and delivers the sharp acidic note characteristic of carbonated drinks and confectionery. In personal care formulations, it adjusts product pH to match skin physiology and acts as a chelating agent, binding metal ions that would otherwise destabilise emulsions or accelerate oxidation.
Citric acid monohydrate is available in food, pharmaceutical, and technical grades, meeting FCC, Ph.Eur., and USP standards where applicable. It is fully REACH-registered and compliant with EU food additive regulations. Standard packaging includes 25 kg bags, with bulk options available depending on grade and supplier.
In food and beverage manufacturing, it lowers pH to inhibit microbial growth and delivers the sharp acidic note characteristic of carbonated drinks and confectionery. In personal care formulations, it adjusts product pH to match skin physiology and acts as a chelating agent, binding metal ions that would otherwise destabilise emulsions or accelerate oxidation.
Citric acid monohydrate is available in food, pharmaceutical, and technical grades, meeting FCC, Ph.Eur., and USP standards where applicable. It is fully REACH-registered and compliant with EU food additive regulations. Standard packaging includes 25 kg bags, with bulk options available depending on grade and supplier.
Physical Properties
| Melting Point | 135 °C |
| Boiling Point | 56 °C760 mm Hg(lit.) |
| Density | 1.5 g/cm³ |
| Flash Point | 1 °F |
| Appearance | white crystals or powder |
| Color | White |
| Odor | Typical, practically odorless |
| Form | Solid |
| Water Solubility | 1630 g/L (20 ºC) |
| Vapor Pressure | 184 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.359(lit.) |
| pH | 1.85 (50g/l, H2O, 25℃) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29181400 |
| UN Number | 1090 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Citric acid H2O2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)ACETONEACETONUMACETONE D2-PROPANONEACETONE 300ACETONE 5000
Related Products
Raw Materials
Derivatives
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