Sodium Chromate Tetrahydrate
- CAS Number
- 10034-82-9
- HSN Code
- 28415010
- Molecular Formula
- Na2CrO4·4H2O
- Catalogue Number
- AL1368A
- Purity
- 99%
- Molecular Weight
- 234.07 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium chromate tetrahydrate is a highly pure analytical reagent with a purity of 99%, specifically designed for precise analytical applications. It is a yellow crystalline powder that is soluble in water, making it suitable for various laboratory uses. This compound is notable for its role in chromate chemistry and is often utilized in research and analytical laboratories. Due to its hexavalent chromium content, it is classified as a toxic substance and a known human carcinogen, necessitating careful handling and storage procedures.
Also known as Sodium Chromate, Chromic Acid Disodium Salt Tetrahydrate.
- Catalogue No.
- AL1368A
- CAS Number
- 10034-82-9
- Molecular Formula
- Na2CrO4·4H2O
- Molecular Weight
- 234.07 g/mol
- HSN Code
- 28415010
- Grade
- AR grade
- Product Form
- Substance
Sodium chromate tetrahydrate appears as a bright yellow crystalline powder. It has a melting point of approximately 100 °C (decomposes), and its solubility in water is significant, allowing for easy preparation of solutions for analytical purposes. The density of sodium chromate tetrahydrate is about 1.73 g/cm³. It has a pH value of around 7 in aqueous solutions, indicating its neutral nature. The compound is hygroscopic, meaning it can absorb moisture from the air, which is an important consideration for storage.
- Appearance
- Yellow crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 500 g and 1 kg containers
- Storage
- Store in a cool, dry place, away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium Chromate Tetrahydrate
- Catalogue No.
- AL1368A
- Product form
- Substance
- CAS Number
- 10034-82-9
- EC Number
- 233-141-3
- Grade
- AR grade
- EC Index Number
- Cr(IV)
- Chemical Formula
- Na2CrO4·4H2O
- HSN Code
- 28415010
- Synonyms
- Sodium Chromate, Chromic Acid Disodium Salt Tetrahydrate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, laboratory use
- 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
- Carcinogenic, toxic
3.1 — Substance
- Name
- Sodium Chromate Tetrahydrate
- CAS No.
- 10034-82-9
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
- Symptoms of exposure may include respiratory irritation, skin irritation, and eye damage.
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 emit 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
- Evacuate area and ventilate. Wear appropriate protective equipment. Contain and collect spillage.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate 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
- Handle with care, using appropriate personal protective equipment (PPE) including gloves and goggles.
- 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 tightly closed container 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 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
- 7 (in solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- Decomposes at 100 °C
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Decomposes above 100 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.73 g/cm³
- Solubility
- Soluble in water
- 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, 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 swallowed, inhaled, or absorbed through the skin.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye damage.
- Respiratory or skin sensitisation
- May cause allergic skin reactions.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation and 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)
- UN 3288
- UN-No. (IMDG)
- UN 3288
- UN-No. (IATA)
- UN 3288
- UN-No. (ADN)
- UN 3288
- UN-No. (RID)
- UN 3288
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium Chromate, hydrated
- Proper Shipping Name (IMDG)
- Sodium Chromate, hydrated
- Proper Shipping Name (IATA)
- Sodium Chromate, hydrated
- Proper Shipping Name (ADN)
- Sodium Chromate, hydrated
- Proper Shipping Name (RID)
- Sodium Chromate, hydrated
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
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
Sodium chromate tetrahydrate is widely used in analytical chemistry as a reference compound for various chromate-related studies. It serves as a reagent in the synthesis of other chromium compounds and is utilized in the preparation of chromate solutions for titrations and other analytical methods. Additionally, it finds applications in the dyeing and tanning industries, as well as in the production of pigments. Its role in research extends to environmental studies, particularly in assessing chromium contamination and its effects on ecosystems.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1368A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 234.07 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99% min | 99.5% |
| Moisture Content | <1% | 0.5% |
| Residue on Ignition | <0.5% | 0.3% |
| Related Substances | None detected | None detected |
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 | 99% | Decomposes at 100 °C | <1% | <0.5% | None detected | Soluble in water |
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