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5-磺基水杨酸,二水合物

5-磺基水杨酸,二水合物用途

【用途一】
用作生化试剂、分析试剂及络合指示剂
【用途二】
脑脊液检验，测定尿中蛋白，比色分析测定高铁离子、测定铝、铍、钙、铬、铜、铁、铅、镁等金属络合剂、分析希土金属锌，测定钢铁原材料、铁矿石、煤焦等。

5-磺基水杨酸,二水合物名称

[ CAS 号 ]:
5965-83-3

[ 中文名 ]:
5-磺基水杨酸二水合物

[ 英文名 ]:
2-Hydroxy-5-sulfobenzoic acid dihydrate

[中文别名 ]:

[英文别名 ]:

MFCD00149540
EINECS 202-555-6
benzoic acid, 2-hydroxy-5-sulfo-, dihydrate
sulfosalicylic acid dihydrate
Benzoic acid, 2-hydroxy-5-sulfo-, hydrate (1:2)
2-hydroxy-5-sulfobenzoic acid hydrate
5-Sulfosalicylic acid dihydrate
2-Hydroxy-5-sulfobenzoic acid dihydrate

5-磺基水杨酸,二水合物物理化学性质

[ 密度 ]:
0,8 g/cm3

[ 沸点 ]:
705.7ºC at 760 mmHg

[ 熔点 ]:
105-110 °C(lit.)

[ 分子式 ]:
C₇H₁₀O₈S

[ 分子量 ]:
254.214

[ 闪点 ]:
150°C

[ 精确质量 ]:
254.009644

[ PSA ]:
138.74000

[ LogP ]:
1.28930

[ 外观性状 ]:
白色结晶粉末

[ 储存条件 ]:
Store at RT.

[ 稳定性 ]:
Stable, but light sensitive. Incompatible with strong oxidizing agents.

[ 水溶解性 ]:
可溶

5-磺基水杨酸,二水合物MSDS

详细MSDS(安全技术说明书)

5-磺基水杨酸,二水合物安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H302-H315-H319

[ 警示性声明 ]:
P301 + P312 + P330-P305 + P351 + P338

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
C:Corrosive;

[ 风险声明 (欧洲) ]:
R22;R34

[ 安全声明 (欧洲) ]:
S26-S45-S36/37/39

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ RTECS号 ]:
VO6500000

[ 海关编码 ]:
2918230000

5-磺基水杨酸,二水合物制备

1.由水杨酸与浓硫酸经磺化而得。

2. 将过量的浓硫酸加热至40℃时，边搅拌边加入水杨酸，当温度升至70～75℃，使水杨酸全部溶解，停止搅拌，继续升温至100～110℃，停止加热，静置冷却7～8h后过滤，结晶，用饱和氯化钠溶液洗至SO₄^2- 离子含量小于30%并无色，离心甩干。所得粗品在80℃以下用水溶解，滤去不溶物，滤液经减压浓缩后得纯品磺基水杨酸。过程反应式为：

5-磺基水杨酸,二水合物海关

[ 海关编码 ]: 2918290000

[ 中文概述 ]:
2918290000 其他含酚基但不含其他含氧基羧酸及其酸酐、酰卤化物、过氧化物和过氧酸及它们的衍生物。监管条件:AB(入境货物通关单,出境货物通关单)。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ 监管条件 ]: A.入境货物通关单 B.出境货物通关单

[ 检验检疫 ]: R.进口食品卫生监督检验 S.出口食品卫生监督检验

[ Summary ]:
HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

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