Molekula
Hydrochloric acid 31%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Hydrochloric acid (31%) is a highly corrosive mineral acid widely used in industrial cleaning, pH adjustment, metal processing, and chemical synthesis. It is a clear, colorless solution with a strong, pungent odor, essential for applications requiring acidification or dissolution of metals and minerals. This hydrochloric acid (CAS 7647-01-0) has a molecular formula of HCl and a molecular weight of 36.46. It is stored at ambient conditions, requires careful handling due to its hazardous nature (Signal Word: Danger), and is supplied in concentrations of 31% by weight. Molekula supplies hydrochloric acid 31% 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 |
|---|---|
| Appearance | Clear colourless to light yellow liquid |
| Assay | 30.5%-31.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90031800 |
| CAS Number | 7647-01-0 |
| IUPAC Name | chlorane |
| EC Number | 231-595-7 |
| Molecular Formula | HCl |
| Molecular Weight | 36.46 |
| Exact Mass | 35.9767 |
| SMILES | Cl |
| InChIKey | VEXZGXHMUGYJMC-UHFFFAOYSA-N |
| InChI | InChI=1S/ClH/h1H |
| PubChem CID | 313 |
| UN Number | UN1789 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2806.10.0000 |
| Tariff Code | 2806100000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, Portuguese, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Acide chlorhydrique
- Anhydrous hydrochloric acid
- Chloorwaterstof
- chlorane
- Chlorohydric acid
- Chlorowodor
- Chlorwasserstoff
- hydrogen chloride
- Muriatic acid
- Muriaticum acidum
Frequently asked questions
What is 31% hydrochloric acid commonly used for in industrial applications?
31% hydrochloric acid is widely used for pH adjustment, metal cleaning, food processing, and as a reagent in chemical synthesis.
What is the molecular formula and molecular weight of this hydrochloric acid?
The molecular formula is **HCl**, and the molecular weight is **36.46 g/mol**.
How should 31% hydrochloric acid be stored?
Store in a tightly sealed container at **ambient temperature**, away from incompatible materials like oxidizers and metals.
What grades of hydrochloric acid does Molekula supply, and is 31% available?
Molekula supplies **technical and reagent grades**; yes, **31% hydrochloric acid is available** in technical grade.
Can Molekula supply this product in bulk quantities?
Yes, we offer **bulk supply options** for hydrochloric acid (31%) in drums or IBCs, depending on volume requirements.
What documentation comes with an order of hydrochloric acid?
Each order includes a **Material Safety Data Sheet (MSDS)**, Certificate of Analysis (COA), and a hazard label with the **Signal Word: Danger**.
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.