Potassium Chromate
- CAS Number
- 7789-00-6
- HSN Code
- 28415090
- Molecular Formula
- K2CrO4
- Catalogue Number
- AL1234A
- Purity
- 99.5%
- Molecular Weight
- 194.19 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
POTASSIUM CHROMATE 99.5% AR is a high-purity analytical reagent known for its precise control over purity levels, making it suitable for sensitive analytical applications. This compound is a yellow crystalline powder that is highly soluble in water, and it is widely recognized for its role in various chemical analyses. As a source of hexavalent chromium, it is important to handle this substance with care due to its toxic and carcinogenic properties. The product is classified under CAS No. 7789-00-6 and is essential in laboratories requiring high-quality reagents for accurate results.
Also known as Chromic acid dipotassium salt.
- Catalogue No.
- AL1234A
- CAS Number
- 7789-00-6
- Molecular Formula
- K2CrO4
- Molecular Weight
- 194.19 g/mol
- HSN Code
- 28415090
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
POTASSIUM CHROMATE appears as a bright yellow crystalline powder. It has a melting point of 968 °C and a boiling point of 1,500 °C. The density of potassium chromate is approximately 2.73 g/cm³. It is soluble in water at a solubility rate of about 1,000 g/L at 20 °C, and it has a pH of approximately 7 in solution. The compound has a relative vapour density of 3.5 and does not have a significant odour, making it relatively easy to handle in laboratory settings.
- Appearance
- Yellow crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 500 g and 1 kg glass bottles
- Storage
- Store in a cool, dry place away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Potassium Chromate
- Catalogue No.
- AL1234A
- Product form
- Substance
- CAS Number
- 7789-00-6
- EC Number
- 232-140-5
- Grade
- AR
- EC Index Number
- Cr(IV)
- Chemical Formula
- K2CrO4
- HSN Code
- 28415090
- Synonyms
- Chromic acid dipotassium salt
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, indicator in titrations
- 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
2.3 — Other hazards
- Other hazards
- Known human carcinogen, may cause respiratory irritation
3.1 — Substance
- Name
- Potassium Chromate
- CAS No.
- 7789-00-6
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 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 and seek medical attention.
- 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
- Irritation of the respiratory tract, skin irritation, eye irritation, nausea, and vomiting.
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 decompose to produce toxic fumes in a fire.
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 collect using appropriate protective equipment. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Sweep up and place in a suitable container for disposal.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Avoid contact with skin and eyes. Use gloves and protective eyewear. Ensure adequate ventilation.
- 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
- Store in a cool, dry place, away from incompatible materials such as strong acids and reducing agents.
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
- Yellow
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 7 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 968 °C
- Freezing point
- Not applicable
- Boiling point
- 1500 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Negligible
- Relative vapour density at 20°C
- 3.5
- Density
- 2.73 g/cm³
- Solubility
- Soluble in water (1000 g/L at 20 °C)
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Oxidizer
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but reacts with strong acids and reducing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong acids, reducing agents, and organic materials.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if ingested or inhaled; may cause skin and eye irritation.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- May cause allergic skin reactions in sensitive individuals.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- Specific target organ toxicity (repeated exposure)
- Not classified
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)
- 3077
- UN-No. (IMDG)
- 3077
- UN-No. (IATA)
- 3077
- UN-No. (ADN)
- 3077
- UN-No. (RID)
- 3077
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Environmentally hazardous substance, solid, n.o.s. (Potassium Chromate)
- Proper Shipping Name (IMDG)
- Environmentally hazardous substance, solid, n.o.s. (Potassium Chromate)
- Proper Shipping Name (IATA)
- Environmentally hazardous substance, solid, n.o.s. (Potassium Chromate)
- Proper Shipping Name (ADN)
- Environmentally hazardous substance, solid, n.o.s. (Potassium Chromate)
- Proper Shipping Name (RID)
- Environmentally hazardous substance, solid, n.o.s. (Potassium Chromate)
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 9
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
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 CHROMATE is primarily used as an analytical-grade indicator in Mohr's method for chloride titrations, where it serves as a colorimetric endpoint indicator. Beyond its use in titrations, it is also employed in various chemical syntheses, as a reagent in the preparation of other chromium compounds, and in the dyeing and tanning industries. Additionally, it finds applications in the manufacture of pigments and in the production of glass and ceramics, where its properties contribute to the desired coloration and stability of the final products.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1234A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 194.19 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99.5% min | 99.7% |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Soluble in water | Soluble |
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 | 99.5% | 968 °C | <0.5% | <0.1% | None detected | Soluble in water |
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