chemical name: glycine
synonyms: aminoacetic acid; l-glycine
cas no.: 56-40-6
molecular weight 75.07
molecular formula: nh2ch2cooh
properties: white crystal or crystalline powder, sweet, easily soluble in water.. density 1.1607, melting point 232~236 ℃, boiling point 233℃, almost insoluble in acetone and ether.
application:
in pharmaceutical field, it can be used as amino acid preparation,aureomycin buffering agent,etc. in food, it can be used as additives of accessory food;seasoning,cheese to extend the shelf life. in feed, it can be used as feed additives for pets. in organic synthesis and biological chemistry as biochemical reagent and solution.
specifications:
product grade |
pharmaceutical grade |
feed grade |
industrial grade |
standard |
usp-34 |
gb 25542-2010 |
enterprise standard |
assay % |
98.5 -101.5 |
≥99.0 |
≥98.5 |
loss on dry % |
≤0.2 |
≤0.2 |
≤0.5 |
heavy metal % |
≤0.002 |
≤0.002 |
≤0.003 |
chloride (cl) % |
≤0.007 |
≤0.4 |
≤0.5 |
residue on ignition % |
≤0.1 |
≤0.1 |
≤0.1 |
sulfate (so42-) % |
≤0.0065 |
≤0.007 |
≤0.01 |
fe % |
≤0.001 |
≤0.003 |
≤0.003 |
ammonium salt (nh4+) % |
≤0.01 |
≤0.02 |
≤0.02 |
arsenic (as) % |
≤0.0001 |
≤0.0003 |
≤0.0005 |
pb % |
≤0.0001 |
≤0.0005 |
≤0.0005 |
ph value (5%) % |
≤5.5-7.0 |
≤5.5-7.0 |
≤5.5-7.0 |
index of central control |
|||
whiteness % |
≥90 |
≥85 |
≥80 |
transmission % |
≥98 |
≥95 |
≥90 |
foreign substance detection |
≤1mm/10 |
≤1mm/10 |
≤1mm/10 |
granularity (u.s.screen) mesh |
above 90% passed 30~120 mesh |
above 90% passed 20~80 mesh |
above 90% passed 20~100 mesh |
shelf life |
two years |
two years (added anti-caking agent ) |
two years |