lactose

lactose
 

Product description:

English name : α-D-Lactose monohydrate
Other names : α- lactose; 4-O-β-D- galactopyranosyl- -α-D- glucopyranose
CAS: 5989-81-1
C12H22O11 • H2O = 360.31
Level : AR grade
Content : ≥99.0%
Specific rotation : + 52 ~ + 52.8 °
Clarity test : Qualified
Nitrogen compounds : ≤0.005%
Loss on drying : ≤0.5%
Dextrin and starch : Qualified
Water insoluble matter : ≤0.005%
Acidity ( in H + ) / (mmol / 100g): ≤0.2
Iron : ≤0.001%
Fat : ≤0.01%
Heavy Metal : ≤0.0005%
Residue on ignition : ≤0.05%
Properties: white crystal or crystalline powder, the sweetness of 70% sucrose density (20 ℃) ​​1.525g / cm3 Melting point 203 ℃ ( decomposition ) is heated to 120 ~ 130 ℃ dehydration becomes anhydrous, anhydrous. melting point of 201 ~ 202 ℃. melt in water, ethanol-soluble and insoluble in ether and chloroform. A reduction, energy reduction Pei Lin solution, there are right-handed light resistance
Purpose : research, experiment medium raw materials, color separation layer absorbent GLC nitroxylene and xylene isomers is a component of liquid-solid phase.
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