L-Lysine monohydrochloride
Density and Refractive Index of L-Lysine monohydrochloride
Bulk density: 0.6–0.8 g/cm³ (crystalline powder); tap density: 0.8–1.0 g/cm³— favorable for industrial packaging, transportation, and formulation (low caking tendency).
True density: 1.24 g/cm³ (crystalline solid, 25 °C).
Refractive index: nD20 = 1.485 (for a 10% w/v aqueous solution)— a reference value for qualitative and quantitative analysis (e.g., refractometry).
Optical Activity of L-Lysine monohydrochloride
As a chiral L-amino acid salt, it exhibits optical rotation— a key property for identifying its chirality and purity (distinguishing from D-lysine or racemic DL-lysine):
Specific rotation ([α]D25): +20.3° to +21.5° (for a 10% w/v aqueous solution, measured with sodium D line (589 nm), 25 °C, 1 dm polarimeter tube).
The specific rotation is constant for pure L-lysine monohydrochloride; a deviation from this range indicates the presence of D-lysine, racemates, or other impurities— a critical quality control index in industrial production.
Other supplier products
|
|
DL-methionine |
The chemical stability of DL-methionine is affected by factors such as pH, temperature, light, and oxidants, which directly determine its storage c... |
|
|
DL-Methionine |
Hygroscopicity and Bulk Properties of DL-MethionineHygroscopicity: DL-methionine has weak hygroscopicity. Under ambient conditions (25 °C, rela... |
|
|
L-Threonine |
Physical Properties of L-Threonine Molecular Formula C₄H₉NO₃ (molecular weight: 119.12 g/mol). Appearance and State White to off-white crystalline ... |
|
|
Folic Acid |
Product Introduction: Product name: Folic acid Synonyms: vitamin B9 Chemical name: pteroyl glutamic acid; N-(4-((2-amino-4-oxo-1,4-dihydro-6-pterin... |
|
|
L-Cysteine hydrochloride monohydrate |
Chemical Structure and PropertiesMolecular FormulaChemical Formula:C3H7NO2S· HCl· H2O Molecular Weight: Approximately 175.64 g/molStr... |
供应产品
Same products
