compound introduction
HNB是钙的金属指示剂，碱土金属离子、稀土金属离子、铀离子的比色试剂。HNB易溶于水和乙醇，HNB的水溶液在pH 7-12时呈蓝色，pH >13时呈红色，在pH 10且有钙离子存在时呈粉红色。碱土金属离子和稀土金属离子的检测范围分别为1-600 ppm和1-300 ppm。复合物的最大波长是650 nm。HNB也被用于UO2(II)的检测。据报道，HNB的质子解离常数为pKa4＝6.44, pKa5=12.91 (μ=0.1，24℃)。
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Hydroxynaphthol blue
Dangerous GoodsCAS number：63451-35-4 molecular formula：C20H11N2Na3O11S3
overview
Specs
| Chinese alias | 羟基萘酚三钠盐 | ||
| English alias | Hydroxynaphthol blue | 63451-35-4 | HYDROXY NAPHTHOL BLUE | VG5SKF7S6C | Sodium 3-hydroxy-4-((2-hydroxy-4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate | 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-hydroxy-4-sulfo-1-naphthalenyl)azo)-, | ||
| CAS number | 63451-35-4 | molecular formula | C20H11N2Na3O11S3 |
| molecular weight | 620.47 g/mol | Exact mass | ≥80% |
| PSA | 262.000 Ų | logp | - |
numbering system
No numbering system information yet
physicochemical properties
No physical and chemical property information yet
Safety information
pictogram：
GHS07
Signal word：
Warning
Hazard Statement：
H315: 引起皮肤刺激 H319: 引起严重眼睛刺激 H335: 可能引起呼吸道刺激
Statement of Preventive Measures：
P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾 P305+P351+P338: 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。 P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P302+P352: 如皮肤沾染：用水充分清洗。 P321: 特殊处理（请参阅此标签上的...）。 P405: 密闭存放 P501: 将内容物/容器处理到。。。 P264: 处理后要彻底洗手。 P271: 仅在室外或通风良好的地方使用。 P304+P340: 如误吸入：将人转移
WGK Germany：
3
Personal protective equipment：
dust mask type N95 (US),Eyeshields,Gloves
Production methods and uses
No production method and use information yet
Related
upstream information
No upstream information yet
downstream information
No downstream information yet
MSDS
Found 1 shareMSDS
63451-35-4 | Hydroxynaphthol blue metal (pM) indicator.pdf
