Agar

Agar Struktur
9002-18-0
CAS-Nr.
9002-18-0
Bezeichnung:
Agar
Englisch Name:
Agar
Synonyma:
Agar powder;Agar-Agar;MACCONKEY AGAR;gar;bengal;Gelose;VEGITONE MACCONKEY AGAR NO 1;Agar;ceylon;TC AGAR
CBNumber:
CB6704452
Summenformel:
C14H24O9
Molgewicht:
336.33496
MOL-Datei:
9002-18-0.mol

Agar Eigenschaften

Schmelzpunkt:
85-95 °C
FEMA 
2012 | AGAR (GELIDIUM SPP.)
storage temp. 
room temp
Löslichkeit
H2O: 1.5% with heat
Aggregatzustand
shredded
Farbe
Brownish yellow
Geruch (Odor)
Odorless
Säure-Base-Indikators(pH-Indikatoren)
5 - 7
PH
6.5-6.8 (1.5% in gel, after autoclaving)
Geruchsart
bland
Wasserlöslichkeit
SOLUBLE IN HOT WATER
Sensitive 
Moisture Sensitive & Hygroscopic
Merck 
14,184
Stabilität:
Stable. Incompatible with strong oxidizing agents.
CAS Datenbank
9002-18-0(CAS DataBase Reference)
EPA chemische Informationen
Agar (9002-18-0)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn
R-Sätze: 22-36/37/38
S-Sätze: 26-36-24/25
WGK Germany  2
RTECS-Nr. AW7950000
3
TSCA  Yes
HS Code  13023100
Giftige Stoffe Daten 9002-18-0(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: 11000 mg/kg
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
Sicherheit
P261 Einatmen von Staub vermeiden.
P271 Nur im Freien oder in gut belüfteten Räumen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

Agar Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

Agar occurs as transparent, odorless, tasteless strips or as a coarse or fine powder. It may be weak yellowish-orange, yellowish-gray to pale-yellow colored, or colorless. Agar is tough when damp, brittle when dry.

Occurrence

Agar is found in several species of red marine algae in oceans around the world.

Verwenden

Agar is a gum obtained from red seaweeds of the genera gelidium, gracilaria, and eucheuma, class rhodophyceae. it is a mixture of the polysaccharides agarose and agaropectin. it is insoluble in cold water, slowly soluble in hot water, and soluble in boiling water, forming a gel upon cooling. the gels are characterized as being tough and brittle, setting at 32–40°c, and melting at 95°c. a rigid, tough gel can be formed at 0.5%. agar mainly functions in gel for- mation because of its range between melting and setting tempera- tures, being used in piping gels, glazes, icings, dental impression material, and microbiological plating. typical use levels are 0.1–2.0%.

Vorbereitung Methode

Agar is obtained by freeze-drying a mucilage derived from Gelidium amansii Lamouroux, other species of the same family (Gelidiaceae), or other red algae (Rhodophyta).

Definition

agar: An extract of certain species ofred seaweeds that is used as a gellingagent in microbiological culturemedia, foodstuffs, medicines, andcosmetic creams and jellies. Nutrientagar consists of a broth made frombeef extract or blood that is gelledwith agar and used for the cultivationof bacteria, fungi, and somealgae.

Allgemeine Beschreibung

Tan powder.

Air & Water Reaktionen

Water insoluble.

Reaktivität anzeigen

Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. They exhibit both weak acid and weak base behavior.

Brandgefahr

Flash point data for Agar are not available. Agar is probably combustible.

Pharmazeutische Anwendungen

Agar is widely used in food applications as a stabilizing agent. In pharmaceutical applications, agar is used in a handful of oral tablet and topical formulations. It has also been investigated in a number of experimental pharmaceutical applications including as a sustained-release agent in gels, beads, microspheres, and tablets.It has also been reported to work as a disintegrant in tablets.
Agar has been used in a floating controlled-release tablet; the buoyancy in part being attributed to air entrapped in the agar gel network.It can be used as a viscosity-increasing agent in aqueous systems. Agar can also be used as a base for nonmelting, and nondisintegrating suppositories.Agar has an application as a suspending agent in pharmaceutical suspensions.

Sicherheitsprofil

Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and fumes.

Sicherheit(Safety)

Agar is widely used in food applications and has been used in oral and topical pharmaceutical applications. It is generally regarded as relatively nontoxic and nonirritant when used as an excipient.
LD50 (hamster, oral): 6.1 g/kg
LD50 (mouse, oral): 16.0 g/kg
LD50 (rabbit, oral): 5.8 g/kg
LD50 (rat, oral): 11.0 g/kg

Lager

Agar solutions are most stable at pH 4–10.
Agar should be stored in a cool, dry, place. Containers of this material may be hazardous when empty since they retain product residues (dust, solids).

Inkompatibilitäten

Agar is incompatible with strong oxidizing agents. Agar is dehydrated and precipitated from solution by ethanol (95%). Tannic acid causes precipitation; electrolytes cause partial dehydration and decrease in viscosity of sols.

Regulatory Status

GRAS listed. Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (oral tablets). Included in the Canadian List of Acceptable Non-medicinal Ingredients. Included in nonparenteral medicines licensed in the UK.

Agar Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Agar Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 531)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Yibangte Import and Export Co. , Ltd.
+86-0311-85030958 +8615532196582
lisa@yibangte.com China 2986 58
Hebei Mojin Biotechnology Co., Ltd
+8613288715578
sales@hbmojin.com China 12452 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177
peter@yan-xi.com China 5988 58
Hebei Guanlang Biotechnology Co,.LTD
+8619930503252
daisy@crovellbio.com China 5966 58
Hebei Jingbo New Material Technology Co., Ltd
+8619931165850
hbjbtech@163.com China 1000 58
Shandong Juchuang Chemical Co., LTD
+86-18885615001 +86-18885615001
admin@juchuangchem.com China 387 58
airuikechemical co., ltd.
+undefined86-15315557071
15315557071@163.com China 527 58
Shaanxi TNJONE Pharmaceutical Co., Ltd
+86-13474506593 +86-13474506593
sarah@tnjone.com China 185 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21700 55
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714
fandachem@gmail.com China 9354 55

9002-18-0(Agar)Verwandte Suche:


  • MACCONKEY AGAR CS
  • MAC CONKEY AGAR NO 1
  • MACCONKEY AGAR NO 1, VEGITONE
  • MACCONKEY BROMOCRESOL PURPLE BROTH
  • MACCONKEY BROTH PURPLE
  • MAC CONKEY MUG AGAR
  • MACCONKEY AGAR WITH MUG
  • MACCONKEY AGAR WITHOUT CRYSTAL VIOLET
  • AGAR, TYPE A, PLANT CELL CULTURE TESTED
  • AGAR TYPE M
  • AGAR TYPE M PLANT CELL CULTURE TESTED
  • BACTERIOLOGICAL AGAR, FOR MOLECULAR BIOLOGY
  • AGAR, TYPE E, PLANT CELL CULTURE TESTED
  • AGAR, HIGH GEL STRENGTH, PLANT CELLCULTU RE TESTED
  • AGAR FIBERS, KOBE NO. 1
  • AGAR BACTERIOLOGICAL PLANT CELL CULTURE TESTED
  • AGAR, POWDER, HIGH GEL STANDARD
  • AGAR, WASHED--PLANT CELL CULTURE TESTED
  • AGAR, FOR MICROBIOLOGY, POWDER
  • AGAR TYPE A
  • AGAR POWDER CELL CULTURE TESTED
  • AGAR, FOR MICROBIOLOGY
  • AGAR, FIBRES, KOREA NO. 1
  • AGAR PURIFIED
  • AGAR HIGH GEL STRENGTH
  • AGAR, PURIFIED, PLANT CELL CULTURE &
  • AGAR TYPE E
  • MACCONKEY AGAR MICROBIOLOGICALLY TESTED
  • AGAR PLANT CELL CULTURE TESTED
  • AGAR-EPI
  • Agar;Agar-agar;Bengal isinglass;Chineseisinglass;Gelose;Gum agar;Japan isinglass;Layor Carang
  • Agar-agar, Agar, Gum agar
  • Agar-agar, Gum agar
  • Agar,pure,powder
  • Agar,pure
  • AgarGelose
  • Agar agar, powder
  • Agar, powder, pure
  • Agar arar ,strips
  • Agar-agar, food grade
  • Agar, Flake, NF
  • Agar (500 mg)
  • Agar, powder, pure 500GR
  • Agar, bacteriological grade
  • Agar-agar rod
  • Agar Vetec(TM) reagent grade
  • AGAR POWDER NOT FOR MICROBIOLOGICAL
  • agaragarflake
  • agar-agargum
  • agaropectin,mixtwithagarose
  • agarose,mixtwithagaropectin
  • bengalgelatin
  • bengalisinglass
  • ceylon
  • ceylonisinglass
  • chinesegelatin
  • chineseisinglass
  • digeneasimplexmucilage
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