Potassium bisulfate
- CAS Number
- 7646-93-7
- HSN Code
- 28332990
- Molecular Formula
- KHSO4
- Catalogue Number
- AL3650
- Purity
- 99%
- 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.
- AL3650
- CAS Number
- 7646-93-7
- Molecular Formula
- KHSO4
- Molecular Weight
- 136.19 g/mol
- HSN Code
- 28332990
- Grade
- AR (Analytical Reagent)
- 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
- Storage
- Dry. Separated from strong bases, alcohols, metals and food and feedstuffs.
1.1 — Product identifier
- Chemical Name
- Potassium bisulfate
- Catalogue No.
- AL3650
- Product form
- Substance
- CAS Number
- 7646-93-7
- EC Number
- 231-594-1
- Grade
- AR
- EC Index Number
- 650-002-00-6
- 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
- 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. If symptoms persist, seek medical attention.
- 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 if irritation persists.
- First-aid measures after ingestion
- Rinse mouth. Do NOT induce vomiting. Seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Corrosive effects may include irritation, redness, and burns to skin and eyes; respiratory irritation if inhaled.
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 cause corrosion to metals.
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 neutralize with a suitable alkaline material. Avoid contact with skin and eyes.
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 appropriate protective gloves, clothing, and eye/face protection. Avoid inhalation of dust.
- 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
- 1.5 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 270 °C (decomposes)
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- 270 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- 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 metals, releasing hydrogen gas.
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, metals, and strong oxidizing agents.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; may cause irritation.
- 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 BISULPHATE 99% AR is primarily used as an analytical-grade fusion flux reagent in sample-preparation research, particularly in the fields of chemistry and materials science. It is utilized in the preparation of samples for spectroscopic analysis, including X-ray fluorescence (XRF) and atomic absorption spectroscopy (AAS). Additionally, it serves as a pH adjuster in various chemical processes and is employed in the production of potassium sulfate, which is used in fertilizers. Its role in analytical chemistry underscores its importance in laboratories focused on precise measurements and high-quality results.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1225A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 136.19 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99% min | 99.5% |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| pH (1% solution) | 1.5 | 1.4 |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 99% | 270 °C (decomposes) | <0.5% | <0.1% | None detected | Solubility in water, g/100ml: 49 (very good) |
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