Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Citric Acid Monohydrate - USP Food Grade
USP Food Grade
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS番号
- 5949-29-1
- 構造
構造・PubChem - グレード
- USP Food Grade
- Assay specification
- 99.5%-100.5% on the anhydrous basis
- Answer summary
Sample specification reference for Citric Acid Monohydrate - USP Food Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (C6H8O7, anhydrous basis) | 99.5%-100.5% on the anhydrous basis | 99.98 % | Titration with 1 N sodium hydroxide VS to phenolphthalein; 1 mL = 64.03 mg C6H8O7 |
| Clarity of Solution | The Sample solution shows the same clarity as that of water or its opalescence is not more pronounced than Standard suspension A | Passes test | 200 mg/mL in water, compared with water and Standard suspension A |
| Color of Solution | The Sample solution is not more intensely colored than water; if more intensely colored, not more intensely colored than Standard solutions A, B, and C | Passes test | — |
| Description | Colorless, translucent crystals or a white, granular to fine, crystalline powder | Passes test | — |
| Heavy Metals | NMT 10 µg/g | 0.35 | Heavy metals (as Pb), sulfide colour comparison against lead standard |
| Lead | Not more than 0.5 mg/kg | 0.073 mg/kg | — |
| Oxalic Acid | ≤ 0.036 % | 0.0015 % | — |
| Residue on Ignition (USP) | NMT 0.1% | 0.0094 % | Residue on Ignition <281>, 1.0 g |
| Readily Carbonizable Substances | Not darker than Matching Fluid K | Passes test | 1.0 g in 10 mL sulfuric acid, 90 ± 1 °C for 60 ± 0.5 min |
| Sulfate (SO4) | ≤ 0.015 % | 0.0047 % | — |
| Tridodecylamine (solvent-extracted material only) | Not more than 0.1 mg/kg | 0.011 mg/kg | — |
| Water | 7.5%-9.0% | 8.8 % | Water Determination, Method I <921> (Karl Fischer), 0.5 g sample |
| Identification | Meets USP/FCC requirements | Passes test | USP citrate identification test / FTIR vs. reference standard |
| Arsenic (as As) | Not more than 1 mg/kg | 0.045 mg/kg | ICP-MS / FCC arsenic limit test |
| iron | 0 - 5 ppm | < 1 | — |
| oxalate | 0 - 100 ppm | < 25 | — |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.
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