琼脂粉，Agar；suitable for microbiology

sterility

non-sterile

质量水平

200

形式

powder

保质期

limited shelf life, expiry date on the label

灼烧残渣

≤1.5%

缺失

≤10% loss on drying

pH值（酸碱度）

5.5-7.5 (25 °C)

mp

≥85 °C

转变温度

gel point 32-35 °C

凝胶强度

>900 g/cm²

溶解性

H₂O: 1.5%, clear to almost clear (100 °C/15 min.)

痕量阳离子

Ca: ≤2500 mg/kg
Fe: ≤100 mg/kg
Mg: ≤900 mg/kg
Pb: ≤5 mg/kg

application(s)

agriculture
microbiology