Molekula
Citric acid monohydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Citric acid monohydrate is a white crystalline powder used as a pH adjuster, chelating agent, and acidulant in food, pharmaceuticals, and industrial applications. It is available in high purity with a molecular weight of 210.14 g/mol and a CAS number of 5949-29-1. The compound is stored at ambient temperatures and carries a warning signal word due to potential irritation. Molekula supplies citric acid monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £46.50 per pack ex VAT · £55.80 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White or almost white crystalline powder, colourless crystals/granules. |
| Water | 7.5 - 8.8% |
| Heavy metals | ≤ 5 mg/kg |
| Odour | Odourless |
| Chloride (Cl-) | ≤ 5 mg/kg |
| Solubility | Very soluble in water. Freely soluble in ethanol. Very slightly soluble in diethyl ether. |
| Assay | 99.5 - 100.5% |
| Sulphated Ash | ≤ 0.05% |
| Appearance of Solution | Passes test |
| Bacterial endotoxins | ≤ 0.5 IU/mg |
| Readily Carbonisable Substances | Passes test |
| Lead (Pb) | ≤ 0.1 mg/kg |
| Mercury (Hg) | ≤ 0.1 mg/kg |
| Arsenic (As) | ≤ 0.1 mg/kg |
| Aluminium (Al) | ≤ 0.2 mg/kg |
| Sulphates (SO4)(2-) | ≤ 50 mg/kg |
| Oxalate (Oxalic acid) | ≤ 50 mg/kg |
| Taste | Strongly acidic taste |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 135 °C |
Source: PubChem CID 22230 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 14551244 |
| CAS Number | 5949-29-1 |
| IUPAC Name | 2-hydroxypropane-1,2,3-tricarboxylic acid;hydrate |
| Molecular Formula | HOC(COOH)(CH2COOH)2 · H2O |
| Molecular Weight | 210.14 |
| Exact Mass | 210.0376 |
| SMILES | C(C(=O)O)C(CC(=O)O)(C(=O)O)O.O |
| InChIKey | YASYEJJMZJALEJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2 |
| PubChem CID | 22230 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29181400 |
| Tariff Code | 2918140090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1)
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monohydrate
- Acidum citricum monohydrate
- Alphacide Activator
- Citiric acid
- Citric acid hydrate
- PURILAB
- Soothe Chewable
- Stop Hair
- Surface Wipes
Frequently asked questions
What is citric acid monohydrate used for?
It is commonly used as a pH adjuster, chelating agent, and acidulant in food, pharmaceuticals, and cleaning products.
What is the chemical formula and molecular weight of citric acid monohydrate?
The formula is HOC(COOH)(CH2COOH)2 · H2O with a molecular weight of 210.14 g/mol.
How should citric acid monohydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade of citric acid monohydrate does Molekula supply?
We supply reagent grade citric acid monohydrate suitable for laboratory and industrial use.
Can Molekula supply citric acid monohydrate in bulk?
Yes, we offer bulk quantities for industrial and commercial applications—please contact us for pricing and availability.
What documentation comes with a purchase of citric acid monohydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.