compound introduction
试剂常呈淡红色。难熔于水，溶于乙醇、甲醇、醚和冰乙酸。碱溶液呈蓝色，溶于浓硫酸呈绿色。 用作酸碱指示剂，PH值6.7左右时为无色～桔黄色，PH值7.9左右时由橘黄变为蓝色。市售品中含杂质者多呈淡红色，于PH值7.3～8.7时由淡红色变为蓝绿色。
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α-Naphtholphthalein
Dangerous GoodsCAS number：596-01-0 molecular formula：C28H18O4
overview
Specs
| Chinese alias | α-萘酚酞 | 1-萘酚酞 | 甲萘酚酞 | ||
| English alias | naphtholphthalein blue | UNII-2QEG1706NN | 1-Naphtholphthalein | STL453765 | a-Naphtolphtalein | D91631 | 3,3-Bis(4-hydroxy-1-naphthyl)-2-benzofuran-1(3H)-one # | 3,3-Bis(4-hydroxy-1-naphthyl)phthalide | 3,3-bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1(3H | ||
| CAS number | 596-01-0 | molecular formula | C28H18O4 |
| molecular weight | 418.44 g/mol | Exact mass | 指示剂 |
| PSA | 66.800 Ų | logp | 6.300 |
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
596-01-0 | α-Naphtholphthalein.pdf
