Product Name |
Water |
Product Number |
1939-5 |
Formula |
H2O |
Molecular Weight |
18.02 |
Grade |
LC-MS |
CAS Number |
7732-18-5 |
Beilstein/REAXYS Number |
2050024 |
EC Number |
231-791-2 |
MDL number |
MFCD00011332 |
UNSPSC Code |
12352303 |
Exp. Date after Mfg. Date |
2 years |
Test Method |
ACS 11th Edition |
|
Specifications |
Meets ACS Specification |
Yes |
Appearance (color) |
Colorless |
Form |
Liquid |
Purity (GC area %) |
Min 99.9% |
Residue after evaporation |
Max 1 ppm |
Filtered by 0.2um filter |
Yes |
Ultraviolet Spectrophotometry |
UV Absorbance 200 nm |
Max 0.01 |
UV Absorbance 254 nm |
Max 0.005 |
UV Absorbance 280 nm |
Max 0.005 |
Gradient Elution Test |
Largest eluted peak (254nm) |
Max 1 mAU |
Largest eluted peak (210nm) |
Max 5 mAU |
Fluroescence Trace Impurities |
at 450nm Emission |
Max 0.1 ppb |
at Emission Max for impurities |
Max 0.02 ppb |
|
Properties |
vapor pressure |
23 hPa (20 °C) |
boiling point |
100 °C (lit.) |
melting point |
0 °C (lit.) |
density |
1.000 g/mL at 3.98 °C (lit.) |
refractive index |
n20/D 1.34 (lit.) |