Sodium Arsenate Heptahydrate
- CAS Number
- 10048-95-0
- HSN Code
- 28429010
- Molecular Formula
- Na2HAsO4·7H2O
- Catalogue Number
- AL01348
- Purity
- 98%
- Molecular Weight
- 312.01 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium arsenate heptahydrate (AR, di-sodium hydrogen arsenate) is a soluble arsenic(V) salt that serves as a critical reference compound in analytical chemistry. This compound is notable for its high purity of 98%, making it suitable for various laboratory applications, particularly in the analysis of arsenic content in different matrices. Its molecular weight of 312.01 g/mol and specific CAS number 10048-95-0 further identify its unique chemical identity. Due to its properties, sodium arsenate heptahydrate is essential in research settings where precise arsenic quantification is required.
Also known as Di-sodium hydrogen arsenate heptahydrate.
- Catalogue No.
- AL01348
- CAS Number
- 10048-95-0
- Molecular Formula
- Na2HAsO4·7H2O
- Molecular Weight
- 312.01 g/mol
- HSN Code
- 28429010
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Sodium arsenate heptahydrate appears as a white to colorless crystalline solid. It has a melting point of approximately 60 °C (decomposes) and is highly soluble in water, with a solubility of about 50 g/L at 20 °C. The compound has a density of approximately 1.69 g/cm³. It is odorless and hygroscopic, meaning it can absorb moisture from the air, which is an important consideration for storage and handling.
- Appearance
- White to colorless crystalline solid
- Shelf Life
- 2 years
- Packaging
- Available in 100 g and 500 g glass bottles
- Storage
- Store in a cool, dry place, away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium Arsenate Heptahydrate
- Catalogue No.
- AL01348
- Product form
- Substance
- CAS Number
- 10048-95-0
- EC Number
- 233-469-0
- Grade
- AR
- EC Index Number
- Arsenic compounds
- Chemical Formula
- Na2HAsO4·7H2O
- HSN Code
- 28429010
- Synonyms
- Di-sodium hydrogen arsenate heptahydrate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Reference compound in analytical chemistry
- 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; highly toxic.
3.1 — Substance
- Name
- Sodium Arsenate Heptahydrate
- CAS No.
- 10048-95-0
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. Seek medical attention if symptoms persist.
- 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 nausea, vomiting, abdominal pain, and neurological effects.
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 spill and prevent entry into waterways.
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
- Handle with care, using appropriate personal protective equipment (PPE) including gloves and goggles. Avoid inhalation and skin contact.
- 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, well-ventilated area, 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 airborne concentrations exceed recommended limits.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to colorless
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 7.0 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- Decomposes at 60 °C
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Decomposes above 60 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.69 g/cm³
- Solubility
- 50 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
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but decomposes upon heating.
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, strong bases, and reducing agents.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Highly toxic; LD50 (oral, rat) is 14 mg/kg.
- 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 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 1685
- UN-No. (IMDG)
- UN 1685
- UN-No. (IATA)
- UN 1685
- UN-No. (ADN)
- UN 1685
- UN-No. (RID)
- UN 1685
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium arsenate, heptahydrate
- Proper Shipping Name (IMDG)
- Sodium arsenate, heptahydrate
- Proper Shipping Name (IATA)
- Sodium arsenate, heptahydrate
- Proper Shipping Name (ADN)
- Sodium arsenate, heptahydrate
- Proper Shipping Name (RID)
- Sodium arsenate, heptahydrate
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 arsenate heptahydrate is primarily used as a reference compound in arsenic analytical chemistry, particularly in the calibration of instruments and methods for arsenic detection. It is also utilized in various research applications, including toxicology studies and environmental monitoring, where arsenic levels need to be accurately measured. Additionally, this compound finds use in the preparation of arsenic-containing reagents and in the study of arsenic's biochemical effects. Industries such as pharmaceuticals, environmental science, and analytical laboratories frequently employ this compound in their operations.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01348
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 312.01 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | White crystalline powder | White crystalline powder |
| Assay | 98.0 - 102.0% | 99.14% |
| Insoluble matter | <0.005% | <0.005% |
| Arsenite (As2O3) | <0.01% | <0.01% |
| Chloride (Cl) | <0.001% | 0.0008% |
| Nitrate (NO3) | <0.005% | 0.004% |
| Sulphates (SO4) | <0.01% | 0.009% |
| Heavy metals (as Pb) | <0.002% | 0.001% |
| Iron (Fe) | <0.001% | <0.001% |
The above product complies with AR grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 98% | Decomposes at 60 °C | < 1% | < 0.5% | None detected | > 50 g/L in water |
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