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Tris(hydroxymethyl)aminomethane

Tris(hydroxymethyl)aminomethane

ProductType:Chemicals
Product Category:Laboratory chemicals
Product Sub Category:Sigma Aldrich
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Description
Catalogue Number 102408
Synonyms Trometamol, Aminomethylidine trimethanol, 2-Amino-2-hydroxymethyl-1.3-propanediol, TRIS-buffer
Description Tris(hydroxymethyl)aminomethane

Product Information
CAS number 77-86-1
EC number 201-064-4
Grade Reag. Ph Eur,Reag. USP
Hill Formula C₄H₁₁NO₃
Chemical formula H₂NC(CH₂OH)₃
Molar Mass 121.14 g/mol
HS Code 2922 19 00
Structure formula Image Structure formula Image
Quality Level MQ300

Applications
Application Tris(hydroxymethyl)aminomethane volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. USP, Reag. Ph Eur. CAS 77-86-1, EC 201-064-4, chemical formula H₂NC(CH₂OH)₃.

Physicochemical Information
Boiling point 219 - 220 °C (13.3 hPa)
Density 1.32 g/cm3 (20 °C)
Melting Point 169 °C
pH value 10.2 - 10.6 (6 g/l, H₂O, 20 °C)
Vapor pressure <0.1 hPa (20 °C)
Bulk density 840 kg/m3
Solubility 678 g/l

Toxicological Information
LD 50 oral LD50 Rat > 5000 mg/kg
LD 50 dermal LD50 Rat > 5000 mg/kg

Safety Information according to GHS
RTECS TY2900000
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Storage and Shipping Information
Storage Store at +15°C to +25°C.

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