Certificado de análisis de muestra
ACS Grade · 60/40
COA de muestra. Contacte con Alliance Chemical con su número de lote para solicitar un COA específico de ese lote.
Referencia de especificaciones de muestra para 60/40 Methanol/DI Water Solution ACS Grade. Los resultados del documento fuente son valores de referencia, no mediciones de su lote.
| Parámetro | Especificación | Resultado de referencia del documento fuente | Método de ensayo |
|---|---|---|---|
| Assay (methanol) | 59.5 - 60.5 % (v/v) | 60.0 % | Specific gravity at 20 °C (ASTM D4052) read against the methanol–water density table; GC confirmation on request |
| Water | 39.5 - 40.5 % (v/v) | 40.0 % | By difference from the methanol assay; Karl Fischer (ASTM E1064) on request |
| Ultraviolet absorbance at 205nm | 0.60 max | 0.42 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 210nm | 0.48 max | 0.21 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 220nm | 0.24 max | 0.071 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 230nm | 0.12 max | 0.025 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 240nm | 0.06 max | 0.011 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 260nm | 0.02 max | 0.004 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Ultraviolet absorbance at 280nm – 400nm | 0.01 max | 0.002 | UV spectrophotometry, 1-cm cell against water (ACS) |
| Identification | Conforms | Passes test | IR spectrum or GC retention time against reference methanol |
| Titrable Acid | 0.00016 meq/g max | 0.000039 meq/g | — |
| Titrable Base | 0.00011 meq/g max | 0.000014 meq/g | — |
| Carbonyl compounds (acetone, formaldehyde, acetaldehyde, each) | 0.00054 % max | 0.00009 % | — |
| Residue After Evaporation | 0.00063% max | 0.00013 % | — |
| Color (APHA) | max 10 | 3 | — |
| Appearance | Clear, colorless, Free of foreign matter | Passes test | — |
| Substances reducing permanganate | Pass Test | Passes test | — |
| Composition | 60 % methanol / 40 % deionized water, by volume | Conforms | By formulation; confirmed by specific gravity |
Los límites de especificación y los resultados del documento fuente se reproducen de la referencia actual del producto utilizada en la ficha técnica. Esta muestra no es un certificado emitido y no identifica un lote analizado. Contacte con Alliance Chemical indicando el producto y el número de lote para obtener documentación específica del lote.
Indíquenos el número de lote que figura en la etiqueta del envase y le enviaremos el certificado sin cargo.