Name | 3,6-bis[(4-chloro-2-phosphonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid |
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Synonyms |
2,7-Bis-<4-chlor-2-phospheno-benzalazo>-1,8-dihydroxy-naphthalin-3,6-disulfonsaeure
2,7-Naphthalenedisulfonic acid, 3,6-bis[(E)-2-(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy- 2,7-Naphthalenedisulfonic acid, 3,6-bis((4-chloro-2-phosphonophenyl)azo)-4,5-dihydroxy- 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonicacid dichlorophosphonoazo III 3,6-Bis((4-chloro-2-phosphonophenyl)azo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid disodiumsalt 3,6-Bis[(E)-(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid Chlorophosphonazo III EINECS 217-628-8 MFCD00042698 |
Description | Chlorophosphonazo III is a sensitive reagent for both calcium and magnesium. It is possible to determine calcium alone at pH 2.2 and calcium and magnesium at pH 7.0. Chlorophosphonazo III can also be used for the spectrophotometric determination of titanium, zirconium, thorium, and scandium, quinquevalent actinide elements, and protactinium[1]. |
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Related Catalog | |
References |
Density | 2.1±0.1 g/cm3 |
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Molecular Formula | C22H16Cl2N4O14P2S2 |
Molecular Weight | 757.364 |
Exact Mass | 755.895691 |
PSA | 350.08000 |
LogP | -2.70 |
Index of Refraction | 1.811 |
Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
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Hazard Codes | Xn |
Safety Phrases | S22-S24/25 |
RIDADR | NONH for all modes of transport |
WGK Germany | 3 |