wêdakakêna nggoleki asam Ascorbic (100 bolong)
fitur:
Nuduhake kegiatan biologi senyawa asam ascorbic dikenal, iku banyu-telat vitamins, woh-wohan lan sayuran sing akeh. Ing reaksi redoks aturan metabolisme saka lack saka iku bisa nimbulaké scurvy
item | STANDARD |
katon | Crystal putih utawa meh putih utawa bubuk kristal |
identifikasi | positif |
titik leleh | 191 ℃ ~ 192 ℃ |
PH (5%, w / v) | 2.2 ~ 2.5 |
PH (2%, w / v) | 2.4 ~ 2.8 |
rotasi optik tartamtu | + 20,5 ° ~ 21.5 ° |
Kajelasan saka solusi | Clear |
logam berat | = <0,0003% |
Pengujian kadar logam (minangka C 6H 8O6,%) | 99,0 ~ 100.5 |
tembaga | = <3 mg / kg |
Iron | = <2 mg / kg |
Mercury | = <1 mg / kg |
arsenik | = <2 mg / kg |
Lead | = <2 mg / kg |
asam oksalat | = <0,2% |
Mundhut ing pangatusan | = <0,1% |
awu Sulphated | = <0,1% |
cairan pelarut ampas (minangka metanol) | = <500 mg / kg |
Total count plate (cfu / g) | = <1000 |
Yeasts & cetakan (cfu / g) | = <100 |
Escherichia. Coli / g | anané |
Salmonella / 25g | anané |
Staphylococcus aureus / 25g | anané |