56763
Agar
high purity, low ionic content, low gel strenght, suitable for microbiology
Sinonimo/i:
Agar-agar, Gum agar
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About This Item
Formula condensata:
(C12H18O9)n
Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
41106212
NACRES:
NA.85
Prodotti consigliati
Livello qualitativo
Sterilità
non-sterile
Forma fisica
powder
Durata
limited shelf life, expiry date on the label
Residuo alla calcinazione
≤4.0%
Perdita
≤10% loss on drying
Torbidità
≤8 NTU (after autoclaving)
Punto di fusione
85-95 °C
Temp. transizione
gel point 34-36 °C
Resistenza del gel
≥800 g/cm2
Anioni in tracce
sulfate (SO42-): ≤2.75%
Cationi in tracce
Ca: ≤500 mg/kg
Mg: ≤200 mg/kg
applicazioni
microbiology
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
GYYDPBCUIJTIBM-DYOGSRDZSA-N
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Descrizione generale
Agar is of high purity, low ionic content, and low gel strength widely used in microbiology as a solidifying agent in microbial culture media. It is a polysaccharide derived from seaweed and is primarily composed of agarose. Agar is a mostly inert substance, which makes it an ideal material for microbial culture media because it doesn’t interfere with the growth of microorganisms. Agar can solidify media, allowing microorganisms to grow in a solid environment, which facilitates the formation of distinct colonies and selective isolation of specific microorganisms. Agar is also used in the preparation of selective and differential media, which can provide additional nutrients or other chemical substances to promote or inhibit the growth of specific microorganisms selectively. Agar is sterilized by autoclaving and then poured into Petri dishes, where it can cool and solidify, forming the surface for microbial growth.
Applicazioni
Agar is commonly used as a solidifying agent in many microbial culture media for the growth and identification of bacteria, yeasts and molds from various pharmaceutical, environmental, food and beverage samples.
Risultati analitici
toxic substances: absence
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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