Citric acid monohydrate

CAS 5949-29-1HOC(COOH)(CH2COOH)2 · H2OAcids & Bases

Citric acid monohydrate (CAS 5949-29-1) is a weak organic acid with the linear formula HOC(COOH)(CH2COOH)2 · H2O and a molecular weight of 210.14 g/mol. This crystalline solid is a key intermediate in cellular metabolism and finds extensive use as an acidulant, flavouring agent, and chelating agent in various industrial and laboratory applications. TSS supplies this compound in a highly pure grade suitable for demanding analytical and synthetic procedures.

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Citric acid monohydrate (HOC(COOH)(CH2COOH)2 · H2O) — chemical structure, CAS 5949-29-1; Chemistry, fine chemical supplied by Tech Serve Solutions

AcidsAcids & BasesAnalytical ReagentsAnalytical/ChromatographyPuriss p.a. ACSChemical SynthesisOrganic AcidsSynthetic Reagents More...

01 /Applications

Food and Beverage Industry

Citric acid monohydrate is widely utilised as an acidulant to provide a tart flavour, and as a preservative to enhance shelf-life in a vast array of food and beverage products. Its chelating properties also help to prevent metallic off-flavours.

Pharmaceutical Formulations

It serves as an excipient in pharmaceutical preparations, acting as an effervescent agent in soluble tablets and an acidulant to improve the taste of syrups and solutions. It also plays a role in drug delivery systems.

Chemical Synthesis

As a versatile organic acid, it is employed as a building block or reagent in various chemical synthesis pathways. Its ability to chelate metal ions makes it useful in processes where metal contamination is a concern.

Analytical Reagent

The high purity of this compound makes it suitable for use as an analytical reagent in laboratories for titrations, buffer preparation, and various quality control analyses, complying with ACS and ISO standards.

Detergent and Cleaning Agents

Citric acid monohydrate functions as a chelating agent in detergent formulations, helping to sequester metal ions in hard water, thereby improving cleaning efficiency. It is also used in descaling solutions.

02 /Properties

Molecular weight	210.14
Linear formula	HOC(COOH)(CH2COOH)2 · H2O
Assay	≥99.0%
Grade	ACS reagent, reag. ISO, reag. Ph. Eur.puriss. p.a.
Impurities tested	Substances carbonizable by hot sulfuric acid, passes test≤0.005% Insoluble matter
Suitability	complies for appearance of solutioncomplies for reaction against H2SO4

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements

P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Flash point	173 °C / 343.4 °F
Water hazard class (WGK, DE)	1
Hazard codes (EU)	Xi
Risk statements (R)	36
Safety statements (S)	26
Cation traces	Fe: ≤3 ppmPb: ≤2 ppm
Anion traces	chloride (Cl-): ≤0.001%oxalate (C2O42-): passes test (limit about 0.05%)phosphate (PO43-): ≤0.001%sulfate (SO42-): ≤0.002%
Ignition residue	≤0.02%

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

5949-29-1

MDL number

MFCD00149972

Beilstein registry

4018641

05 /Additional specifications

Pka	(1) 3.13, (2) 4.76, (3) 6.4

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Citric acid monohydrate used for?

Citric acid monohydrate is used in the food and beverage industry as an acidulant and preservative, in pharmaceuticals as an excipient, in chemical synthesis, as an analytical reagent, and in detergents and cleaning agents.

What is the CAS number and formula for Citric acid monohydrate?

The CAS number for Citric acid monohydrate is 5949-29-1, and its linear formula is HOC(COOH)(CH2COOH)2 · H2O.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Citric acid monohydrate with an assay of ≥99.0%, meeting ACS reagent, reag. ISO, and reag. Ph. Eur. standards, as well as puriss. p.a. grade. TSS does not represent this product as USP, BP, or EP grade unless explicitly stated.

What are the safety and handling precautions for Citric acid monohydrate?

Citric acid monohydrate is classified with the GHS symbol GHS07 and signal word Warning. It causes serious eye irritation (H319). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. In case of eye contact, rinse cautiously with water for several minutes (P305 + P351 + P338).

How is Citric acid monohydrate packed and shipped?

Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging and adherence to regulations for the safe shipment of Citric acid monohydrate worldwide.

How can I request a sample or quote for Citric acid monohydrate?

To request a sample or a quote for Citric acid monohydrate, please contact the TSS sales team through the website or by phone, providing your specific requirements.