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Table 3.3: General guideline to chemical resistance for AxiChrom columns.
CAS No.
3
Comments
Time/cycle
restrictions
Concentration
2
Chemical
1
64-19-7
CIP
3 h
25%
Acetic acid
67-64-1
Function test
1 h
2%
Acetone
7783-20-2
Adsorption
5 h
2 M
4
Ammonium sulfate
100-51-6
Storage
12 months
2%
Benzyl alcohol
64-17-5
Storage
12 months
max. 0.5 bar
20%
Ethanol
64-17-5
CIP
3 h
70%
5
Ethanol
64-17-5/
64-19-7
CIP
3 h
20%/10%
Ethanol/acetic acid
50-01-1
CIP
5 h
6 M
6
Guanidine hydrochloride
7647-01-0
CIP
1 h
0.1 M (pH=1)
7
Hydrochloric acid
67-63-0
CIP
1h
30%
Isopropanol
7664-38-2
Passivation of SS
bed supports
8 h
5%
Phosphoric acid
7647-14-5
Purification, CIP
3 h
0 to 3 M
5,7, 8
Sodium chloride
1310-73-2
CIP
24 h, RT to 30°C
1 M (pH=14)
Sodium hydroxide
1310-73-2/
64-17-5
CIP
3 h
1 M / 20%
Sodium hydroxide/ethanol
7757-82-6
Adsorption
3 h
1 M
4
Sodium sulfate
57-13-6
Purification, CIP
5 h
8 M
4
Urea
Equilibration,
adsorption, elution
24 h
10 to 250 mM
pH 3 to 10
Commonly used aqueous
buffers for
chromatographic use
1
Recommended temperature for usage is 2°C to 30°C for all chemicals listed in this table.
2
When a concentration is given as a percentage, this is v/v.
3
CAS No. is the registration number assigned by the Chemical Abstract Services (CAS), American
Chemical Safety. Refer to Material safety data Sheet (MSDS) for more information.
4
pH in these solutions depends on the pH of the liquid, which can vary between pH 3-13.
5
Glass and stainless steel columns.
AxiChrom 50, 70 and 100 columns Operating instructions 28-9331-08 AG
27
3 Specifications and characteristics
3.5 Chemical resistance