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Certificate of Analysis
Product Name: Tris(hydroxymethyl)aminomethane Catalogue Number: GR-6503
Batch Size: N/A Lot Number: 20240403
CAS Number: 77-86-1 Production Date:
Molecular Formula: C4H11NO3 Report Date: 2024-04-01
Molecular Weight: 121.14 Expiry Date:
Storage: Room temperature, Protected from light and Sealed


Test Items Specifieation Results
Appearance White crystal powder Complies
Content, % 99.5%-101.0% 99.8%
Melting Point 168-172.0°C 168-172.0°C
Water Insoluble <0.03% 0.02%
Strong heat residue <0.05% 0.02%
Loss on drying <0.2% 0.17%
pH 10.0-11.5 10.55
Fe ≤10ppm <10PPM
SO4 ≤10ppm <10PPM
Cl ≤10ppm <10PPM
Heavy Metal(Pb) ≤10ppm <10PPM
40% water solution 260nm ≤0.1 0.076
40% water solution 280nm <0.07 0.063
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