Tris Acetate Biological Buffer ?TRIS acetate salt ?for pharmaceutical composition

Quick detail:

Description:

?CAS NO 6850-28-8?

>?Formula:C4H11NO3.C2H4O2

>?Weight:?181.19

>?MP/BP/(.C) :117-123

> Storage:room?temperature

>?Safety?Description:

>?Danger Description:

>?Danger Symbol:

1.?Applications

A.?Buffering?agent?for?pharmaceutical?composition?for?treating?a?menopausal?condition?in?a?female.

2.?Location

A.?Biology/biochemistry?laboratory,?pharmaceutical?factory,?cosmetics?factory.

Synonyms:

TRIS ACETATE;TRIS-ACETATE-EDTA;TRIS-ACETATE-EDTA BUFFER;TRIS ACETATE-EDTA BUFFER CONCENTRATE;TRIS ACETATE SALT;TRIS EDTA ACETATE BUFFER;TRIS(HYDROXYMETHYL)AMINOMETHANE ACETATE;Tris(hydroxymethyl)aminomethane acetate salt;trizma acetate; Tris acetate; 1,3-dihydroxy-2-(hydroxymethyl)propan-2-aminium acetate

Related categories:??Buffer;Buffers;Protein Electrophoresis;SDS-PAGE;

Related Products: ?16674-78-5;77-86-1

Determination?of?melting?point

???Instrument:

???Micro?melting?point?apparatus?WRS-2A,?Melting?point?tubes

??Determination?of?step:

Open?switch,?stable?20min.

First?set?the?starting?temperature?than?the?melting?point?of?the?low?10?℃,?heating?rate?2?℃?/?min.

The?sample?was?grind?as?fine?as?possible?and?load?in?a?clean,?dry?melting?point?pipe?,until?the?sample?was?compressed?into?about?1cm?high?.When?the?actual?temperature?reaches?the?set?temperature?and?stabilized?.?Inserted?into?the?capillary?with?the?sample,?the?simultaneous?determination?of?three.

The?determination?of?PH

Weigh?a?certain?amount?of?samples?into?test?tube,?add?a?certain?amount?of?water,?shake?and?dissolve,?determination?of?the?pH?used?have?been?calibrated?pH?meter.

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.

The?determination?of?UV?absorbance

??A?certain?amount?of?the?sample?was?weighed?to?the?nearest?0.0001g,?into?10ml?volumetric?flask,?after?constant?volume?with?pure?water,?at?a?specific?wavelength?by?2cm?cuvette?was?measured?by?UV?spectrophotometer.

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.