Molekula
Citric acid monohydrate, ACS Grade
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, ACS Grade, is a white, odorless crystalline organic acid derived from citrus fruits, widely used as a pH adjuster, chelating agent, and preservative in pharmaceuticals, food, and laboratory applications. It meets the stringent purity requirements of the American Chemical Society for analytical and research use. CAS 5949-29-1 | Molecular formula HOC(COOH)(CH2COOH)2 · H2O | Molecular weight 210.14 g/mol | Store at ambient conditions. Hazard classification: Warning (irritant, may cause skin/eye irritation). Molekula supplies citric acid monohydrate, ACS Grade, 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.
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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100 g — £14.00 per pack ex VAT · £16.80 inc. VAT
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500 g — £30.90 per pack ex VAT · £37.08 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 powder |
| Grade | ACS Reagent |
| Water | 8.10 - 8.70% |
| Heavy metals | ≤ 1ppm |
| Chloride (Cl-) | ≤ 5ppm |
| Assay | 99.88 - 100.50% |
| Iron (Fe) | ≤ 1ppm |
| Lead (Pb) | ≤ 0.5ppm |
| Mercury (Hg) | ≤ 1ppm |
| Arsenic (As) | ≤ 1ppm |
| Calcium (Ca) | ≤ 10ppm |
| Copper (Cu) | ≤ 1ppm |
| Magnesium (Mg) | ≤ 1ppm |
| Barium (Ba) | ≤ 1ppm |
| Zinc (Zn) | ≤ 1ppm |
| Aluminium (Al) | ≤ 0.2ppm |
| Sulphates (SO4)(2-) | ≤ 30ppm |
| Oxalate (Oxalic acid) | ≤ 10ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 90025391 |
| CAS Number | 5949-29-1 |
| Molecular Formula | HOC(COOH)(CH2COOH)2 · H2O |
| Molecular Weight | 210.14 |
| SMILES | C(C(=O)O)C(CC(=O)O)(C(=O)O)O.O |
| 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
No alternate names recorded for this product.
Frequently asked questions
What is citric acid monohydrate (ACS Grade) commonly used for?
ACS Grade citric acid monohydrate is primarily used in analytical laboratories for titrations, pH buffer preparation, and as a standard in chemical assays due to its high purity and consistency.
What is the chemical formula and molecular weight of citric acid monohydrate?
The formula is **HOC(COOH)(CH₂COOH)₂·H₂O**, and the molecular weight is **210.14 g/mol**.
How should citric acid monohydrate (ACS Grade) be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and strong oxidizing agents.
What grade of citric acid monohydrate does Molekula supply, and is ACS Grade available?
Molekula supplies **ACS Grade** citric acid monohydrate, meeting stringent purity requirements for analytical applications.
Can Molekula supply citric acid monohydrate in bulk quantities?
Yes, Molekula can provide citric acid monohydrate in bulk, with quantities tailored to your research or industrial needs.
What documentation comes with an order of citric acid monohydrate (ACS Grade)?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation confirming ACS Grade compliance.
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.