Potassium bisulfate
- CAS Number
- 7646-93-7
- HSN Code
- 28332990
- Molecular Formula
- KHSO4
- Catalogue Number
- AL3649
- Purity
- ≥ 98.5%
- Molecular Weight
- 136.19 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Potassium hydrogen sulfate is a colorless crystalline solid with a sulfur odor. It may cause illness from ingestion.
Also known as Potassium hydrogen sulfate.
- Catalogue No.
- AL3649
- CAS Number
- 7646-93-7
- Molecular Formula
- KHSO4
- Molecular Weight
- 136.19 g/mol
- HSN Code
- 28332990
- Grade
- 98.5%
- Product Form
- Substance
Density: 2.2 g/cm³; Solubility: Solubility in water, g/100ml: 49 (very good).
- Appearance
- Potassium hydrogen sulfate is a colorless crystalline solid with a sulfur odor
- Shelf Life
- 2 years
- Packaging
- Available in: 500 gm plastic bottle, 5 Kg plastic bottle
- Storage
- Dry. Separated from strong bases, alcohols, metals and food and feedstuffs.
1.1 — Product identifier
- Chemical Name
- Potassium bisulfate
- Catalogue No.
- AL3649
- Product form
- Substance
- CAS Number
- 7646-93-7
- EC Number
- 231-594-1
- Grade
- 98.5%
- EC Index Number
- 650-002-00-3
- Chemical Formula
- KHSO4
- HSN Code
- 28332990
- Synonyms
- Potassium hydrogen sulfate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, fusion flux
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Skin Corr. 1B; STOT SE 3
- Classification source
- ECHA C&L Inventory via PubChem CID 516920 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Corrosive, Irritant
- Signal word
- Danger
- Hazard statements
- H314: Causes severe skin burns and eye damage; H335: May cause respiratory irritation
2.3 — Other hazards
- Other hazards
- Corrosive to metals
3.1 — Substance
- Name
- Potassium bisulfate
- CAS No.
- 7646-93-7
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. Seek medical attention if symptoms persist.
- First-aid measures after skin contact
- Wash with plenty of soap and water. Seek medical attention if irritation develops.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention.
- First-aid measures after ingestion
- Rinse mouth. Do NOT induce vomiting. Seek medical attention.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of the respiratory tract, skin, and eyes; possible burns.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Non-flammable, but may release toxic fumes when heated.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Contain spill and absorb with inert material. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Wear protective gloves and eye protection. Avoid contact with skin and eyes.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Dry. Separated from strong bases, alcohols, metals and food and feedstuffs.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- Acidic (approx. 1.5 in 1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 135 °C
- Freezing point
- Not applicable
- Boiling point
- 340 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Decomposes above 340 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Negligible
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.2 g/cm³
- Solubility
- Solubility in water, g/100ml: 49 (very good)
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Reacts with strong bases and oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on heating. This produces toxic fumes. Reacts with alcohols and water.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong bases, strong oxidizers, and moisture.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; LD50 (oral, rat) > 2000 mg/kg.
- Skin corrosion/irritation
- H314: Causes severe skin burns and eye damage
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- H335: May cause respiratory irritation
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- 2509
- UN-No. (IMDG)
- 2509
- UN-No. (IATA)
- 2509
- UN-No. (ADN)
- 2509
- UN-No. (RID)
- 2509
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Potassium bisulfate
- Proper Shipping Name (IMDG)
- Potassium bisulfate
- Proper Shipping Name (IATA)
- Potassium bisulfate
- Proper Shipping Name (ADN)
- Potassium bisulfate
- Proper Shipping Name (RID)
- Potassium bisulfate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 8
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Potassium bisulfate is widely used in analytical chemistry as a fusion flux, particularly for dissolving refractory mineral samples in classical qualitative analysis. It is also utilized in the production of potassium sulfate, which is an important fertilizer in agriculture. Additionally, it serves as a pH regulator in various industrial processes and is used in the food industry as a food additive. Its properties make it suitable for applications in the manufacture of glass and ceramics, as well as in the preparation of certain pharmaceuticals.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01225
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 136.19 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98.5% | 99.0% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.5% | 0.2% |
| pH Value | Acidic (approx. 1.5 in 1% solution) | 1.4 |
| Solubility | Soluble in water | Complete dissolution in water at 20 °C |
The above product is expected to comply with 98.5% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98.5% | ≥ 98.5% | 135 °C | ≤ 0.5% | ≤ 0.5% | None detected | Solubility in water, g/100ml: 49 (very good) |
Related Products
View AllWhy buy from Alpha Chemika
What Our Scientific & Industrial Customers Say
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
FAQs
Common Questions About Laboratory Chemicals & Solutions
Find answers to common questions about laboratory chemicals, product selection, documentation, ordering, and technical support. Whether you are sourcing chemicals for research, testing, education, manufacturing, or industrial applications, these FAQs can help you make informed purchasing decisions.
Alpha Chemika offers a wide range of laboratory chemicals, reagents, solvents, and specialty products for research, testing, educational, pharmaceutical, and industrial applications.
Product selection depends on factors such as application, required purity, grade, specifications, and intended use. Our team can help you identify suitable products based on your technical requirements.
Yes. Relevant product information and technical documentation can be provided to help you evaluate products for quality, handling, compliance, and application requirements.
Yes. You can share your product list, required quantities, specifications, and delivery requirements with our team for a tailored quotation.
Yes. We support requirements from research laboratories, educational institutions, pharmaceutical companies, manufacturers, distributors, and other scientific and industrial organizations.
Connect with Us for Your Requirements
Have a specific product requirement or need help finding the right chemical for your application? Share your requirements with our team, and we will help you identify suitable products, specifications, quantities, and procurement options.
