TODS ?Trinder Reagent N , N-bis(4-sulfobutyl)-3-methylaniline , disodium salt

Quick Detail:

Description:

> CAS NO:127544-88-1

> Formula:C15H23NNa2S2O6

> Weight:423.46

> Appearance:White?or?light?brown?crystalline?powder

> Storage: 2-8℃,?keep?in?dark?place

> Safety Description:

> Danger Description:

> Danger Symbol:

Specifications

Synonyms:

N,N-Bis(4-sulfobutyl)-3-methylaniline,disodiumsalt;4,4\'-[(3-Methylphenyl)imino]bis-1-butanesulfonic acid;N,N-Bis(4-sulfobutyl)-3-methylaniline;Sodium 4,4\'-(m-tolylazanediyl)-bis(butane-1-sulfonate);N,N-bis(4-sulfobutyl)-3-methylaniline,disodium salt; TODB

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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

???Before?use,?the?exact?amount?of?stock?solution?1mL,?relocated?to?a?100ml?volumetric?flask,?dilute?with?water?to?the?mark,?shake,?limit?the?use?of?the?day?.

???Weigh?sample?1g,?after?adding?sodium?hydroxide?solution?5mL?and?20mL?of?water?to?dissolve,?set?Nessler?colorimetric?tube,?add?5?drops?of?sodium?sulfide?,?shake?,?compared?the?color?with?5mL?lead?standard?solution?after?the?same?treatment,??not?deeper.

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.