Potassium Dichromate
- CAS Number
- 7778-50-9
- HSN Code
- 38229090
- Molecular Formula
- K2Cr2O7
- Catalogue Number
- AL1237F
- Purity
- 99.9%
- Molecular Weight
- 294.18 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Potassium dichromate (K2Cr2O7) is a highly soluble, bright orange salt that is widely used in analytical chemistry as a strong oxidizing agent. This particular product is a certified standardized solution at a concentration of 0.0167M (0.1N), making it ideal for precise volumetric analysis in various laboratory settings. Its strong oxidizing properties and ability to participate in redox reactions make it a valuable reagent in titrations and other chemical analyses. Due to its classification as a known human carcinogen, it is essential to handle this substance with care and appropriate personal protective equipment (PPE).
Also known as Dichromic acid, dipotassium salt.
- Catalogue No.
- AL1237F
- CAS Number
- 7778-50-9
- Molecular Formula
- K2Cr2O7
- Molecular Weight
- 294.18 g/mol
- HSN Code
- 38229090
- Grade
- 0.0167M (0.1N) Standardized Solution
- Product Form
- Substance
The solution appears as a bright orange liquid, characteristic of potassium dichromate. It has a density of approximately 1.06 g/mL, which is typical for concentrated aqueous solutions of this compound. The solution is highly soluble in water, allowing for easy preparation and use in laboratory applications. The boiling point of potassium dichromate solutions can vary, but it generally exceeds 100 °C due to the presence of water. The solution is stable under normal conditions but should be stored away from reducing agents and organic materials.
- Appearance
- Bright orange liquid
- Shelf Life
- Stable under recommended storage conditions
- Packaging
- Available in 500 mL glass bottles
- Storage
- Store in a cool, dry place, away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Potassium Dichromate
- Catalogue No.
- AL1237F
- Product form
- Substance
- CAS Number
- 7778-50-9
- EC Number
- 231-906-6
- Grade
- 0.0167M (0.1N) Standardized Solution
- EC Index Number
- Cr(IV)
- Chemical Formula
- K2Cr2O7
- HSN Code
- 38229090
- Synonyms
- Dichromic acid, dipotassium salt
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, oxidizing agent
- 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
- Strong oxidizer, carcinogenic (hexavalent chromium)
3.1 — Substance
- Name
- Potassium Dichromate
- CAS No.
- 7778-50-9
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. Seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and 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, and eyes; potential long-term effects include cancer.
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
- May cause fire or explosion; strong oxidizer.
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
- Use appropriate protective equipment. Collect and dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Use personal protective equipment (PPE) such as gloves, goggles, and lab coats. Avoid inhalation and contact with skin.
- 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 reducing agents and organic substances.
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 ventilation is inadequate.
9.1 — Information on basic physical and chemical properties
- Physical state
- Liquid
- Colour
- Bright orange
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- Not applicable
- Freezing point
- Not applicable
- Boiling point
- >100 °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
- 1.06 g/mL
- Solubility
- Soluble in water
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Strong oxidizer
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts violently with 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
- Reducing agents, organic materials, and strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if swallowed, inhaled, or absorbed through skin.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye damage.
- Respiratory or skin sensitisation
- May cause allergic skin reaction.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause damage to organs through prolonged or repeated exposure.
- 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)
- Not assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Potassium Dichromate Solution
- Proper Shipping Name (IMDG)
- Potassium Dichromate Solution
- Proper Shipping Name (IATA)
- Potassium Dichromate Solution
- Proper Shipping Name (ADN)
- Potassium Dichromate Solution
- Proper Shipping Name (RID)
- Potassium Dichromate Solution
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 5.1
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 dichromate is primarily used in analytical chemistry as a standardized oxidant in redox titrations. It serves as a primary standard for the determination of various substances, including iron and other metals, through volumetric analysis. Additionally, it is utilized in the preparation of other chromium compounds and in the dyeing and tanning industries. Its strong oxidizing properties also make it useful in the synthesis of organic compounds and in environmental testing for the presence of reducing agents. However, due to its toxicity and environmental impact, its use is regulated in many jurisdictions.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1237F
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 294.18 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99.0% min | 99.5% |
| Density | 1.06 g/mL | 1.06 g/mL |
| pH | Not applicable | Not applicable |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with 0.0167M (0.1N) Standardized Solution grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 0.0167M (0.1N) | 99.9% | Not applicable | <0.5% | <0.1% | None detected | Completely soluble in water |
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