Biological Buffer Bes Ultrapure; N, N-Bis (2-hydroxyethyl) -2-Aminoethanesulphonic Acid CAS No 10191-18-1

• Appearance: Powder
• Grade Standard: Reagent Grade
• Transport Package: Paper Box
• Specification: kg
• Trademark: Peng test organism
• Origin: Xuzhou, China
• Model NO.: BES
• HS Code: 29221980
• Production Capacity: 2tons of/Month

Product Description

Physical and chemical properties:
N, N-bis (2-hydroxyethyl) -2-aminotaurine is a white crystalline powder, soluble in water, and stable at room temperature and pressure.
Purpose:
1. N, N-bis (2-hydroxyethyl) -2-aminotaurine is used in laboratory research and chemical pharmaceutical synthesis.
2.Biological buffer

Point of melting:	150-155 °C
Density :	1.210 (estimate)
Pressure of vapor:	0.001Pa at 25ºC
Index of refraction:	1.5500 (estimate)
Storage conditions:	room temp
Degree of solubility	H2O:1 Mat 20 °C,Transparent and colorless
form	White powder
PH value:	2.5-5.0 (25ºC, 1M in H2O)

Acid-base indicator discoloration ph range:	6.4 - 7.8
Coefficient of acidity (pKa):	7.1(at 25ºC) 7.15(at 20ºC)
Solubility of water	Soluble

 

Specification Properties	Specification of standard	Result of Analysis
(Appearance)
(Assay)	99.0%-101.0%	99.69%
Water Content)	≤0.5%	0.35
loss on drying	≤1%	0.42
solubility (1.0M aqueous)	,	,
PH value (1.0M aqueous)	2.5-5.0	4.35
Pb	≤0.0005	0.0002
Ultraviolet absorbance/280nm	≤0.05	0.03
Ultraviolet absorbance/290nm	≤0.03	0.02
Conclusion:                        Passe

: 25ºC,
Storage:room temperature25ºC