Molekula
Calcium Hydroxide USP/Ph. EUR
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
Calcium Hydroxide USP/Ph. EUR is a white, caustic, alkaline powder widely used in pharmaceuticals, water treatment, and food processing as a pH regulator, flocculant, and antacid. It meets USP and Ph. Eur. standards for purity and safety in critical applications. CAS 1305-62-0, molecular formula Ca(OH)₂, molecular weight 74.09 g/mol. Store at ambient temperature. Signal word: Danger (causes skin irritation, serious eye damage and may cause respiratory irritation). Molekula supplies Calcium Hydroxide USP/Ph. EUR 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 |
|---|---|
| Chloride (Cl-) | ≤0.005% |
| Assay | 95.0 - 100.5% |
| Organic Volatile Impurities | Conforms to standard |
| Residual Solvents | Conforms to standard |
| Heavy Metals (Pb) | ≤0.002% |
| Iron (Fe) | ≤0.1% |
| Lead (Pb) | ≤0.0002% |
| Arsenic (As) | ≤0.0003% |
| Copper (Cu) | ≤0.001% |
| HCl Insoluble Matter | ≤0.2% |
| Barium (Ba) | ≤0.03% |
| Zinc (Zn) | ≤0.001% |
| Sulphates (SO4)(2-) | ≤0.005% |
| Magnesium and Alkali salts | ≤2.5% |
| Calcium Carbonate (CaCO3) | ≤5.0% |
| Carbonate (CO3(2-)) | Conforms to standard |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90037156 |
| CAS Number | 1305-62-0 |
| Molecular Formula | Ca(OH)2 |
| Molecular Weight | 74.09 |
| SMILES | O[Ca]O |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28259090 |
| Tariff Code | 2825901900 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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 Calcium Hydroxide USP/Ph. EUR commonly used for?
Calcium Hydroxide USP/Ph. EUR is primarily used in pharmaceuticals, food processing (e.g., water treatment, pH adjustment), and as a reagent in chemical synthesis.
What is the chemical formula and molecular weight of Calcium Hydroxide?
The chemical formula is Ca(OH)₂, and the molecular weight is 74.09 g/mol.
How should Calcium Hydroxide USP/Ph. EUR be stored?
Store in a tightly sealed container at ambient temperature, away from moisture and carbon dioxide to prevent degradation.
What grades of Calcium Hydroxide does Molekula supply?
Molekula supplies USP (United States Pharmacopeia) and Ph. Eur. (European Pharmacopeia) grades of Calcium Hydroxide.
Can Molekula supply Calcium Hydroxide in bulk quantities?
Yes, Molekula can provide Calcium Hydroxide in bulk, with quantities tailored to your specific requirements.
What documentation comes with an order of Calcium Hydroxide USP/Ph. Eur.?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation for traceability.
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.