巯基功能化硅胶

货号: M1545073
只有 %1 左
级别和纯度: 粒度: 40-200 μm , 孔径: 100 Å, 巯基载量: 1.2-1.8 mmol/g
价格
低至 ¥399.90

概述

QSM = Qiusheng Scavenger/Silica Material — 巯基功能化硅胶
核心功能:基于HSAB理论,选择性捕获钯及其他软金属离子(Pd、Hg、Ag、Pt等)。
全系列统一基质参数:粒径范围 40-200 μm | 孔径 100 Å | 巯基载量 1.2-1.8 mmol/g

型号

表面特性

封端

核心优势

M1545073-01

亲水

—

水相有机相兼容

M1545073-02

疏水

—

有机相润湿优

M1545073-03

亲水

✅

水相有机相兼容

M1545073-04

高疏水

✅

有机相

产品参数

项目 规格
巯基载量 1.2-1.8 mmol/g
硫含量 3.8-5.8% w/w
除钯容量 ≥60 mg Pd/g
粒径 40-200 μm
孔径 100 Å
比表面积 300-450 m²/g
适用pH 1.0-8.0
耐压 <200 bar

功能基团

定位:除钯效率高,性价比最高。

典型应用:

钯催化偶联后处理(Suzuki / Buchwald-Hartwig / Heck / Sonogashira)

水相/极性溶剂体系金属催化剂清除

科研小批量金属清除与验证实验

贵金属回收(Pd / Pt / Au / Ag)

环境水体重金属富集(Hg / Cd / Pb)

四款产品对比

除钯性能对比(DCM体系,批次搅拌法,室温4h)

指标

M1545073-01

M1545073-02

M1545073-03

M1545073-04

有机相润湿

⚠️ 一般

✅ 优

⚠️ 一般

✅ 优

巯基可达性

70-80%

90-95%

70-80%

95-100%

API收率损失

3-8%

3-8%

<2%

<2%

钯残留可达

<10 ppm

<10 ppm

<5 ppm

<5 ppm

溶剂体系适用性

溶剂

M1545073-01

M1545073-02

M1545073-03

M1545073-04

水 / 水醇混合

✅ 优

⚠️ 润湿慢

✅ 优

⚠️ 润湿慢

甲醇 / 乙醇

✅ 优

✅ 良

✅ 优

✅ 良

DCM

⚠️ 可用

✅ 优

⚠️ 可用

✅ 优

乙酸乙酯

⚠️ 可用

✅ 优

⚠️ 可用

✅ 优

THF

⚠️ 可用

✅ 优

⚠️ 可用

✅ 优

甲苯

⚠️ 可用

✅ 优

⚠️ 可用

✅ 优

DMF / DMSO

✅ 优

✅ 良

✅ 优

✅ 良

使用方法

批次搅拌法(推荐)

偶联反应完成后,将反应液调节PH至酸性环境,加入含巯基硅胶;

室温搅拌4-8 h(或升温至50-60°C缩短至2-4h)

过滤分离硅胶,溶剂洗涤2-3次

浓缩滤液,ICP-MS检测钯残留

如>10 ppm,追加巯基硅胶二次吸附

投料量参考:100 g底物 → 投~10 g巯基硅胶

柱层析法

将巯基硅胶装柱或与普通硅胶混合装柱,反应液过柱即可同步除钯和纯化。推荐M1545073-02或M1545073-04(有机溶剂洗脱匹配)。

QSM=Qiusheng Scavenger/Silica Material - Thiol functionalized silica gel
Core function: Based on the HSAB theory, selectively capture palladium and other soft metal ions (Pd, Hg, Ag, Pt, etc.).
Unified matrix parameters for the entire series: particle size range of 40-200 μ m | pore size of 100 Å | thiol loading of 1.2-1.8 mmol/g

Model

Surface characteristics

End-capping

Core advantages

M1545073-01

Hydrophilic

—

Compatible with aqueous and organic phases

M1545073-02

Hydrophobic

—

Organic phase wetting is superior

M1545073-03

Hydrophilic

✅

Compatible with aqueous and organic phases

M1545073-04

Highly hydrophobic

✅

organic phase

Product parameters
Project Standards
Thiol loading capacity 1.2-1.8 mmol/g
Sulfur content 3.8-5.8% w/w
Excluding palladium capacity ≥60 mg Pd/g
Particle size 40-200 μm
Aperture 100 Å
Specific surface area 300-450 m²/g
Applicable pH 1.0-8.0
Pressure resistance <200 bar
Functional group
Positioning: High palladium removal efficiency and highest cost-effectiveness.
Typical applications:
Palladium catalyzed coupling post-treatment (Suzuki/Buchwald Hartwig/Heck/Sonogashira)
Metal catalyst removal in aqueous/polar solvent system
Small batch metal removal and verification experiment for scientific research
Precious metal recycling (Pd/Pt/Au/Ag)
Enrichment of heavy metals in environmental water bodies (Hg/Cd/Pb)
Comparison of Four Products
Comparison of palladium removal performance (DCM system, batch stirring method, room temperature 4h)

Index

M1545073-01

M1545073-02

M1545073-03

M1545073-04

Organic phase wetting

⚠️ general

✅ excellent

⚠️ general

✅ excellent

Thiol accessibility

70-80%

90-95%

70-80%

95-100%

API yield loss

3-8%

3-8%

<2%

<2%

Palladium residue can reach

<10 ppm

<10 ppm

<5 ppm

<5 ppm

Applicability of solvent system

溶剂

M1545073-01

M1545073-02

M1545073-03

M1545073-04

水 / 水醇混合

✅ excellent

⚠️ slow wetting

✅ excellent

⚠️ slow wetting

甲醇 / 乙醇

✅ excellent

✅ good

✅ excellent

✅ good

DCM

⚠️ usable

✅ excellent

⚠️ usable

✅ excellent

乙酸乙酯

⚠️ usable

✅ excellent

⚠️ usable

✅ excellent

THF

⚠️ usable

✅ excellent

⚠️ usable

✅ excellent

甲苯

⚠️ usable

✅ excellent

⚠️ usable

✅ excellent

DMF / DMSO

✅ excellent

✅ good

✅ excellent

✅ good

Usage method
Batch mixing method (recommended)
After the coupling reaction is completed, adjust the pH of the reaction solution to an acidic environment and add mercapto containing silica gel;
Stir at room temperature for 4-8 hours (or heat up to 50-60 ° C and shorten to 2-4 hours)
Filter and separate silica gel, wash with solvent 2-3 times
Concentrated filtrate, ICP-MS detection of palladium residue
If>10 ppm, add mercapto silica gel for secondary adsorption
Reference feeding amount: 100g substrate → 10g mercapto silica gel
Column chromatography
Fill the mercapto silica gel column or mix it with ordinary silica gel column, and the reaction solution can be passed through the column to simultaneously remove palladium and purify it. Recommend M1545073-02 or M1545073-04 (organic solvent elution matching).

规格

规格或纯度
粒度: 40-200 μm , 孔径: 100 Å, 巯基载量: 1.2-1.8 mmol/g
英文名称
Mercapto Silica

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