Scapex Exports Pvt. Ltd.
830, 8th Floor, Sun Gravitas, Times of India Road,
Shyamal, Ahmedabad 380015, Gujarat, India
+91 9925522674 · info@scapexexports.com
CIN U46909GJ2025PTC164345
Shyamal, Ahmedabad 380015, Gujarat, India
+91 9925522674 · info@scapexexports.com
CIN U46909GJ2025PTC164345
Certificate of AnalysisStandard product specification
Sodium Bicarbonate Pharma Grade
CAS 144-55-8 · CHNaO3 · IP/BP/USP/EP
Structural formula1. Product identity
| Product name | Sodium Bicarbonate Pharma Grade |
|---|---|
| C.A.S. number | 144-55-8 |
| Molecular formula | CHNaO3 |
| Molecular weight | 84.01 g/mol |
| Grade / standard | IP/BP/USP/EP |
| Description | White crystalline powder |
| Product group | Buffering Agents |
| Category | Pharmaceutical Excipients |
| Country of origin | India |
| Packing | Bags, drums, carboys, IBC or ISO tank as applicable — customer-specified packing available |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
2. Analytical specification
| S. No. | Test parameter | Specification | Typical result | Method |
|---|---|---|---|---|
| 1 | Description | White crystalline powder | Complies | Visual |
| 2 | Identification (A) — Infrared absorption | Concordant with reference spectrum | Complies | IR Spectrophotometry |
| 3 | Identification (B) — Chemical / chromatographic | Positive for the substance | Complies | As per monograph |
| 4 | Solubility | As per specification | Complies | Visual / Monograph |
| 5 | Assay (on dried basis) | 98.0 – 102.0 % w/w | 99.59 | HPLC / Titrimetry (Monograph) |
| 6 | pH (aqueous dispersion) | As per monograph | 6.1 | Potentiometry |
| 7 | Bulk Density | As per specification | 0.31 g/mL | USP <616> |
| 8 | Tapped Density | As per specification | 0.67 g/mL | USP <616> |
| 9 | Particle Size (d50) | As per specification | 118 µm | Laser diffraction |
| 10 | Loss on Drying | Not more than 1.0 % w/w | 0.13 | Gravimetry (Monograph) |
| 11 | Sulphated Ash / Residue on Ignition | Not more than 0.1 % w/w | 0.031 | Gravimetry (Monograph) |
| 12 | Heavy Metals | Not more than 20 ppm | Less than 10 ppm | ICP-OES / Limit test |
| 13 | Related Substances — any individual impurity | Not more than 0.10 % | 0.056 | HPLC |
| 14 | Related Substances — total impurities | Not more than 0.50 % | 0.074 | HPLC |
| 15 | Residual Solvents | Complies with ICH Q3C limits | Complies | Headspace GC |
| 16 | Total Aerobic Microbial Count | Not more than 1000 cfu/g | 107 cfu/g | IP / USP <61> |
| 17 | Total Yeast & Mould Count | Not more than 100 cfu/g | 16 cfu/g | IP / USP <61> |
| 18 | Escherichia coli | Absent in 1 g | Absent | IP / USP <62> |
| 19 | Salmonella species | Absent in 10 g | Absent | IP / USP <62> |
3. Declaration
This document sets out the standard specification for Sodium Bicarbonate Pharma Grade and applies to all consignments of this product and grade supplied by Scapex Exports Pvt. Ltd. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with, and travels with, each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we confirm compliance in writing before the order is accepted.
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