α-Ketoglutaric acid disodium salt / Dihydrate Trinder Reagent CAS NO 305-72-6 ?99%
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Quick Detail:
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Description:
> CAS NO: 305-72-6
> Formula:?C5H4O5Na2.2H2O
> Weight:226.09
> Appearance: White?crystalline?powder
> Storage: 2-8℃
> Safety Description:S22-24/25-45-36/37/39-26
> Danger Description:R23/24/25-36/37/38
> Danger Symbol:T
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1.Applications:
A.Diseases related to infection of pathogenic strains of helicobacter pylori
B.gastric ulcers
C.gastric mucosa-associated lymphoid tissue lymphoma
?2.Location
A. biology/biochemistry laboratory, pharmaceutical factory, cosmetics factory
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Specifications

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Synonyms:
2-oxo-pentanedioicacidisodiumsalt;DISODIUM 2-KETOGLUTARATE;DISODIUM 2-OXOGLUTARATE;ALPHA-KETOGLUTARIC ACID, SESQUISODIUM SALT;ALPHA-KETOGLUTARATE DISODIUM;ALPHA-KETOGLUTARIC ACID DISODIUM SALT;2-KETOGLUTARIC ACID DISODIUM SALT;2-KETOGLUTARIC ACID SODIUM SALT;pentanedioic acid, 2-oxo-, monosodium salt; Disodium 2-oxoglutarate dihydrate
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Related categories:
Building Blocks;Carbonyl Compounds;Carboxylic Acid Salts;Chemical Synthesis;Organic Building Blocks;metabolite
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Related Products:
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The?determination?of?solubility
Weigh?a?certain?amount?of?samples?into?test?tube,?add?a?certain?amount?of?water,?shake?and?dissolve,?observe?the?solution.
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The?determination?of?Loss?on?drying
??Weigh?a?sample?of?approximately?2g?(weighing?accuracy?0.0001g),Record?the?weight?of?m,The?sample?was?placed?in?a?Petri?dish?constant?weight?(weight?recorded?as?m0),?the?tile,?the?thickness?of?not?more?than?5mm,?into?the?oven?(As?next?dish?cover?removed)?drying?at?105-110?℃?3?hours.When?removing,?make?sure?the?dish?cover,be?placed?in?a?desiccator?to?cool,?then?weighed?and?the?weight?(including?surface?dish)?m1.
Loss?on?drying?in?accordance?with?the?following?formula:

Where:
?????????m--?sample,?g
???????m0--?dish,?g
??????????m1--?After?drying?the?quality?of?the?sample?and?the?dish,?g
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Determination?of?iron?content
??Preparation?of?standard?iron?solution
??Weigh?ammonium?iron(III)?sulfate?[FeNH4(SO4)2·12H2O]?0.863g?.Placed?in?1000mL?volumetric?flask,?add?water?to?dissolveand?add?sulfuric?acid?2.5mL.Diluted?with?water?to?the?mark,?shake,?as?the?stock?solution.
???Before?use,?exact?amount?of?stock?solution?1mL,?placed?in?100mL?flask,?diluted?with?water?to?the?mark?and?shake.
??Weigh?1g?sample,?placed?in?a?crucible.Adding?sodium?carbonate?2g?and?mixed.Burning?at?740?℃,the?residue?is?dissolved?in?dilute?hydrochloric?acid?15ml?,?displacing?50mL?Nessler?colorimetric?tube?,?add?dilute?hydrochloric?acid?4mL?and?ammonium?persulfate?50mg?,?Diluted?with?water?to?make?into?35mL,?add?30%?ammonium?thiocyanate?solution?3mL,?plus?the?amount?of?water?diluted?into?50mL,?shaked.?If?the?color,?take?1mL?standard?iron?solution?into?50mL?Nessler?colorimetric?tube,?add?water?to?25mL,4mL?dilute?hydrochloric?acid?and?50mg?ammonium?persulfate?,?diluted?with?water?to?35mL,?then?plus?30%?ammonium?thiocyanate?solution?3mL,?plus?the?amount?of?water?diluted?into?50mL,?shake?comparisons.
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Detection?of?heavy?metals
?????The?meaning?of?heavy?metals?of?this?act?is?under?the?specified?experimental?condition,?which?can?coloration?effects?with?sodium?sulfide?or?thioacetamide??.The?glasses?of?preparation?or?storage?is?not?allowed?to?contain?lead.
5.8.1??Reagents
??a)?Lead?dinitrate:1μg/mL
???b)?Sodium?hydroxide?:10%(m/v)
???c)?Sodium?sulfide?:10%(m/v)
5.8.2??Preparation?of?lead?standard?solution
?????Weigh?lead?dinitrate??0.1599g?,relocated?to?1000mL?volumetric?flask,?plus?nitric?acid?5mL?and?water?50mL,?diluted?with?water?to?the?mark?,?shake,?as?the?stock?solution.
5.8.3?Determination?of?step
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