Sodium Dichromate Dihydrate
- CAS Number
- 7789-12-0
- HSN Code
- 28413000
- Molecular Formula
- Na2Cr2O7·2H2O
- Catalogue Number
- AL1371A
- Purity
- 98.5%
- Molecular Weight
- 298.00 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium dichromate dihydrate is a highly pure analytical reagent with a purity of 98.5%, making it suitable for precise analytical applications. It is a strong oxidizing agent and is classified as a known human carcinogen due to the presence of hexavalent chromium. This compound is widely used in various chemical processes and research settings, particularly in the field of analytical chemistry. Its molecular formula is Na2Cr2O7·2H2O, and it is recognized for its distinctive orange-red color, which is characteristic of chromium compounds.
Also known as Sodium Chromate, Dichromic Acid Disodium Salt.
- Catalogue No.
- AL1371A
- CAS Number
- 7789-12-0
- Molecular Formula
- Na2Cr2O7·2H2O
- Molecular Weight
- 298.00 g/mol
- HSN Code
- 28413000
- Grade
- AR grade
- Product Form
- Substance
Sodium dichromate dihydrate appears as an orange-red crystalline solid. It has a melting point of approximately 60 °C (decomposes), and its boiling point is not applicable as it decomposes before boiling. The compound is freely soluble in water, with a solubility of about 100 g/L at 20 °C. The density of sodium dichromate dihydrate is approximately 2.06 g/cm³. It has a pH value of around 4.0 in a 1% aqueous solution, indicating its acidic nature. The compound has a strong, characteristic odor, typical of chromium compounds.
- Appearance
- Orange-red crystalline solid
- 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 and sources of ignition.
1.1 — Product identifier
- Chemical Name
- Sodium Dichromate Dihydrate
- Catalogue No.
- AL1371A
- Product form
- Substance
- CAS Number
- 7789-12-0
- EC Number
- 233-141-3
- Grade
- AR grade
- EC Index Number
- Cr(IV)
- Chemical Formula
- Na2Cr2O7·2H2O
- HSN Code
- 28413000
- Synonyms
- Sodium Chromate, Dichromic Acid Disodium 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
- Sodium Dichromate Dihydrate
- CAS No.
- 7789-12-0
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
- 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 carcinogenic effects with prolonged exposure.
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
- Evacuate area and ventilate. Use appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Contain and collect spillage with non-combustible absorbent material. 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) including gloves, goggles, and lab coat. 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, in a tightly closed container, away from incompatible materials.
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 or mist is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Orange-red
- Odour
- Characteristic
- Odour threshold
- Not applicable
- pH value
- 4.0 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 60 °C (decomposes)
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- > 200 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.06 g/cm³
- Solubility
- Freely 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, 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 respiratory irritation; may cause cancer.
- 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)
- UN 3087
- UN-No. (IMDG)
- UN 3087
- UN-No. (IATA)
- UN 3087
- UN-No. (ADN)
- UN 3087
- UN-No. (RID)
- UN 3087
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium Dichromate Dihydrate
- Proper Shipping Name (IMDG)
- Sodium Dichromate Dihydrate
- Proper Shipping Name (IATA)
- Sodium Dichromate Dihydrate
- Proper Shipping Name (ADN)
- Sodium Dichromate Dihydrate
- Proper Shipping Name (RID)
- Sodium Dichromate Dihydrate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1 (Toxic)
14.4 — Packing group
- Packing group (ADR)
- I
- Packing group (IMDG)
- I
- Packing group (IATA)
- I
- Packing group (ADN)
- I
- Packing group (RID)
- I
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
Sodium dichromate dihydrate is primarily used as an analytical-grade reference compound in various chemical analyses and research applications. It serves as a reagent in dichromate chemistry, particularly in redox reactions and titrations. Additionally, it is utilized in the production of pigments, leather tanning, and as a corrosion inhibitor in industrial applications. Its strong oxidizing properties make it valuable in organic synthesis and environmental testing, where it is used to determine the presence of certain organic compounds. Furthermore, it is employed in the preparation of other chromium compounds and in electroplating processes.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1371A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 298.00 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 98.5% min | 98.7% |
| Moisture Content | < 1.0% | 0.5% |
| Residue on Ignition | < 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Freely soluble in water | Freely soluble in water |
The above product is expected to comply with AR grade grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR grade | 98.5% | Decomposes at 60 °C | < 1.0% | < 0.1% | None detected | Freely soluble in water |
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.
