01916

Agar

powder, suitable for microbiology

• Synonym(e): Agar-Agar
• Lineare Formel: (C₁₂H₁₈O₉)_n
• CAS-Nummer: 9002-18-0
• NACRES: NA.74
• UNSPSC Code: 41106212
• MDL number: MFCD00081288
• eCl@ss: 32160607

Eigenschaften

• form: powder
• Quality Segment: 100
• shelf life: limited shelf life, expiry date on the label
• loss: ≤10% loss on drying
• pH: 6-7.5 (1.5% in gel, after autoclaving )
• mp: 85-89 °C
• transition temp: gel point 34-36 °C
• gel strength: ≥800 g/cm²Nikkan, after autoclaving
• anion traces: sulfate (SO₄^2-): ≤2.75%
• cation traces: Ca: ≤500 ppm, Mg: ≤200 ppm
• application(s): microbiology
• storage temp.: 15-25°C
• InChI: 1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1
• InChI key: GYYDPBCUIJTIBM-DYOGSRDZSA-N

Beschreibung

General description

Agar is a gelatinous substance, commonly used as a solidifying agent in microbiological media. It provides a stable platform for the growth of microorganisms. This agar is a mixture of Gelidium agar and a small amount of Gracilaria agar. It gives a very clear gel and shows the same good characteristics as the typical pure Gelidium agar.

Analysis Note

Toxic substances: absence
Nephelosi/after autoclaving NTU <8

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• WGK: WGK 1