282430
관리자 [2018-08-30 14:27:04]
조회수 1366
Indicator 4.4. Mixed (Methyl Red-Methylene Blue) for volumetric analysis
250ml
liquid / COMPOSITION:
Methyl Red: 100 mg
Methylene Blue: 50 mg
Water: 10.4 ml
Ethanol absolute s.q.m: 100 ml
Identity: passes test
pH transition interval: violet red: 4.4
pH transition interval: green: 5.8
Methyl Red: 100 mg
Methylene Blue: 50 mg
Water: 10.4 ml
Ethanol absolute s.q.m: 100 ml
Identity: passes test
pH transition interval: violet red: 4.4
pH transition interval: green: 5.8
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