Potassium Chromate
- CAS Number
- 7789-00-6
- HSN Code
- 28415090
- Molecular Formula
- K2CrO4
- Catalogue Number
- AL3677
- Purity
- 99%
- 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 is a potassium salt consisting of potassium and chromate ions in a 2:1 ratio. It has a role as a NMR chemical shift reference compound, a carcinogenic agent and an oxidising agent.
Also known as Chromic acid dipotassium salt, Potassium dichromate (VI).
- Catalogue No.
- AL3677
- CAS Number
- 7789-00-6
- Molecular Formula
- K2CrO4
- Molecular Weight
- 194.19 g/mol
- HSN Code
- 28415090
- Grade
- Extra Pure
- 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 compound is highly soluble in water, with a solubility of approximately 1,000 g/L at 20 °C. It has a density of 2.73 g/cm³. The compound has a characteristic odorless nature, and its pH in a 1% aqueous solution is typically around 9.5, indicating its alkaline properties. Potassium chromate is also hygroscopic, meaning it can absorb moisture from the air.
- Appearance
- Yellow crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in: 500 gm plastic bottle, 5 Kg plastic container
- Storage
- Provision to contain effluent from fire extinguishing. Dry. Well closed. Separated from combustible substances, reducing agents and food and feedstuffs. Store in an area without drain or sewer access.
1.1 — Product identifier
- Chemical Name
- Potassium Chromate
- Catalogue No.
- AL3677
- Product form
- Substance
- CAS Number
- 7789-00-6
- EC Number
- 232-140-5
- Grade
- Extra Pure
- EC Index Number
- Cr(IV)
- Chemical Formula
- K2CrO4
- HSN Code
- 28415090
- Synonyms
- Chromic acid dipotassium salt, Potassium dichromate (VI)
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
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Skin Irrit. 2; Skin Sens. 1; Eye Irrit. 2; STOT SE 3; Muta. 1B; Carc. 1B; Aquatic Acute 1; Aquatic Chronic 1
- Classification source
- ECHA C&L Inventory via PubChem CID 24597 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant, Health Hazard, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H315: Causes skin irritation; H317: May cause an allergic skin reaction; H319: Causes serious eye irritation; H335: May cause respiratory irritation; H340: May cause genetic defects; H350: May cause cancer; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
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.
- First-aid measures after skin contact
- Flush with water; if irritation persists, get medical attention.
- First-aid measures after eye contact
- Flush with water for at least 15 min.; get medical attention.
- First-aid measures after ingestion
- Give large amount of water; induce vomiting; treat peripheral vascular shock vigorously; get medical attention.
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, 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
- Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Non-flammable, but may contribute to the combustion of other materials.
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
- Personal protection: chemical protection suit including self-contained breathing apparatus. Sweep spilled substance into containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder.
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 appropriate personal protective equipment. Work in a well-ventilated area.
- 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
- Provision to contain effluent from fire extinguishing. Dry. Well closed. Separated from combustible substances, reducing agents and food and feedstuffs. Store in an area without drain or sewer access.
8.2 — Exposure controls
- Hand protection
- Handle with gloves.
- Eye protection
- Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use a NIOSH-approved respirator if exposure limits are exceeded.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Yellow
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 9.5 (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
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.73 g/cm³
- Solubility
- 1000 g/L in water at 20 °C
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Oxidizing agent
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. 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
- The solution in water is a weak base. The substance is a strong oxidant. It reacts with combustible and reducing materials.
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, organic materials.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Mouse oral 180 mg/kg; LD50 Mouse ip 32 mg/kg; LD50 Rabbit intramuscular 11 mg/kg
- Skin corrosion/irritation
- H315: Causes skin irritation
- Serious eye damage/irritation
- H319: Causes serious eye irritation
- Respiratory or skin sensitisation
- H317: May cause an allergic skin reaction
- Germ cell mutagenicity
- H340: May cause genetic defects
- Carcinogenicity
- H350: May cause cancer
- 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)
- 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 indicator in argentometric titrations, specifically in Mohr's method for determining chloride ions. Its bright yellow color allows for easy visual detection of the endpoint in titrations with silver nitrate. Beyond analytical chemistry, potassium chromate is utilized in the production of pigments, leather tanning, and as a corrosion inhibitor in various industrial applications. It also finds use in the manufacturing of glass and ceramics, where it contributes to the coloration and properties of the final products.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01234
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 194.19 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99% min | 99.5% |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | 1000 g/L | 1000 g/L |
The above product is expected to comply with Extra Pure grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| Extra Pure | 99% | 968 °C | <0.5% | <0.1% | None detected | 1000 g/L in water |
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“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
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