info

product name:

Tris base

cas No. :

77-86-1

MF :

C4H11NO3

MW :

121.14

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Detail

Quick Details

Synonyms:

THAM;

Trisamine;

Tromethane;

Trometamol;

Tromethamine;

Tris(hydroxymethyl)aminomethane;

2-Amino-2-(hydroxymethyl)-1,3-propanediol

Molecular structure:

Properties

Item

Specifications

Results

Appearance

White crystalline powder

Conforms

Assay

99.5~101.0%

99.9%

Moisture

≤0.3%

0.19%

Insolubles

≤0.005%

<0.005%

PH

10.0~11.5

10.5

Heavy metals

≤5ppm

3ppm

Fe

≤5ppm

2ppm

Cl

≤3ppm

<3ppm

Residue on ignition

≤0.05%

0.02%

Melting point

168.0~172.0℃

168.5~171.3℃

Conclusion

The results conforms with enterprise standards

 

Description

Tris (hydroxymethyl) aminomethane is a white crystal or powder. It is soluble in ethanol and water, slightly soluble in ethyl acetate and benzene, insoluble in ether and carbon tetrachloride, corrosive to copper and aluminum, and irritating chemicals.

Cushioning characteristics

Tris (hydroxymethyl) aminomethane is a weak base. At 25 ° C, its pKa is 8.1; according to the buffer theory, the effective buffer range of tris (hydroxymethyl) aminomethane buffer is between pH 7.0 and 9.2. Tris (hydroxymethyl) aminomethane aqueous solution has a pH of about 10.5. Generally, hydrochloric acid is added to adjust the pH value to the required value to obtain the pH buffer solution. At the same time, the effect of temperature on the pKa of tris (hydroxymethyl) aminomethane should be noted.

Usage

Tris (hydroxymethyl) aminomethane is an alkaline buffer, widely used in acute metabolic and respiratory acidemia, and has a good buffering effect on metabolic acidosis and enzyme activity response. Tris (hydroxymethyl) aminomethane can also be used as an intermediate of fosfomycin, vulcanization accelerator, cosmetics (cream, lotion), mineral oil, paraffin emulsifier.

Packaging

25kg/drum

Storage

Store in a dry, well-ventilated place away from direct sunlight.

COA,

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