oxo[(oxoalumanyl)oxy]alumane

• ChemBase编号: 102051
• 分子式: Al2H2O3
• 平均质量: 103.977156
• 单一同位素质量: 103.96347118
• SMILES: O=[AlH]O[AlH]=O
• Canonical SMILES: O=[AlH]O[AlH]=O
• InChI: InChI=1S/2Al.3O
• InChIKey: TWNQGVIAIRXVLR-UHFFFAOYSA-N

名称和登记号

名称

• IUPAC标准名: oxo[(oxoalumanyl)oxy]alumane
• IUPAC传统名: oxo[(oxoalumanyl)oxy]alumane; aluminium oxide
• 别名: 氧化铝分散体; 蓝宝石; 矾土; 氧化铝; 无荧光性氧化铝; 弱酸性活性氧化铝; 抑制剂清除剂; 氧化铝; 介孔氧化铝; Aeroxide® Alu C; Sapphire; MP ALUMINUM OXIDE 1-3 mm; MP ALUMINA N ACTIVITY I; MP ALUMINA DCC, 50-200 μM, 60Å; MP DCC PACKAGE 1: ALUMINA; MP ALUMINA A ACTIVITY SUPER I; MP ALUMINA B 18-32 μM, ACTIVE; MP ALUMINA ACTIVITY II-III; MP ALUMINA A-TLC; MP ALUMINA B ACTIVITY I; MP ALUMINA N, ACT I FOR PYROGEN REMOVAL; MP ALUMINA B-TLC; MP ALUMINA N-TLC; MP ALUMINA N SUPER I; Aluminium oxide; Alumina; aluminium(III) oxide; MP ALUMINUM OXIDE; MP ALUMINA N, 32-63 μM, ACTIVE; MP ALUMINA N; MP ALUMINA N, ACTIVE; MP ALUMINA A, ACTIVE; MP ALUMINUM OXIDE NEUTRAL H15152; MP ALUMINA B, ACTIVE; ALUMINA C; MP ALUMINA B ACTIVITY SUPER I; MP ALUMINA A SUPER I; MP ALUMINA G-TLC; MP ALUMINA A, ACTIVITY I, 63-200 μM; Aluminum oxide; Aluminum oxide without Fluorescence; CAMAG 506-C-I; Activated alumina, weakly acidic; Inhibitor removers; Aluminum oxide, mesoporous

登记号

• CAS号: 1344-28-1
• EC号: 215-691-6
• MDL号: MFCD00003424; MFCD00081548
• PubChem SID: 24846974; 24895810; 162088037; 24883240; 24890555; 24851947; 24890574; 24860715; 24851949; 24873971; 24890619; 24860720; 24854054; 24879232; 24860722; 24858514; 24859187; 24851917; 24858711; 24845827; 24860729; 24878787; 24890585; 24860724; 24853275; 24852104; 24883250; 24882698; 24860726; 24845910; 24873970; 24891058; 24856242; 24845314; 24865888; 24860731; 24856076; 24860717
• PubChem CID: 14769

理论计算性质

• 质子受体: 2
• 质子供体: 0
• LogD (pH = 5.5): 2.4684
• LogD (pH = 7.4): 2.4684
• Log P: 2.4684
• 摩尔折射率: 4.236 cm^3
• 极化性: 6.522983 Å^3
• 极化表面积: 43.37 Å^2
• 可自由旋转的化学键: 2
• 里宾斯基五规则: true

分子性质

理化性质

• 外观: calcined; dispersion; fused; granular; liquid (suspension); nanoparticles; nanopowder; nanowires; pellets; pieces; powder; single crystal substrate; sintered
• 熔点: 2040 °C(lit.); ca. 2072 °C
• 沸点: ca. 2980 °C
• 闪点: 12 °C; 204.8 °F; 53.6 °F; 96 °C
• 自燃点: 590 °C (1,094 °F); 932 °F
• 密度: 0.79 g/cm3 at 25 °C; 1.02 g/mL at 25 °C; 1.06 g/mL at 25 °C; 3.94 g/cm^3 at 20 °C
• 蒸汽压: 0 hPa at 20 °C; 17 mmHg ( 20 °C)
• 蒸汽密度: <1 (vs air)
• 电导率: <1 mS/cm
• pH值: ~6.0 ( in H2O); 4.0-5.0 (20 °C, 10% in H2O); 4.5±0.5; 4.5±0.5 ( in H2O); 5-7; 7.0±0.5; 7.0±0.5 ( in H2O); 7.0±1.0; 7.0-8.0 (20 °C, 10% in H2O); 8-10; 9.5±0.5; 9.5±0.5 ( in H2O)
• 半导体性质: <0001>

安全信息

• 保存条件: Room Temperature (15-30°C)
• RTECS编号: BD1200000
• 欧盟危险性物质标志: 易燃性(Flammable) (F); 刺激性(Irritant) (Xi)
• 联合国危险货物编号: 1219
• 德国WGK号: 1; 3; nwg
• 联合国危险货物等级: 3
• 联合国危险货物包装类别(PG): 2
• 危险公开号: 11-36-67; 36/37/38; R:15-17
• 安全公开号: 16-26; 26-36; S:7/8
• 欧盟危险识别号(EUHIN): 11
• GHS危险品标识: GHS02; GHS07
• GHS警示词: Danger; Warning
• GHS危险声明: H225-H319-H336; H315-H319-H335
• GHS警示性声明: P210-P261-P305 + P351 + P338; P261-P305 + P351 + P338
• 个人保护装置: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter; Eyeshields, Gloves, half-mask respirator (US), multi-purpose combination respirator cartridge (US); Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• RID/ADR: UN 1219 3/PG 2

产品相关信息

• 纯度: ≥98% Al2O3 basis; ≥98.0%; ≥99%; 99%; 99.5% trace metals basis; 99.8% trace metals basis; 99.9%; 99.99%; 99.99% trace metals basis; 99.998% trace metals basis
• 浓度: 20 wt. % in H2O; 20 wt. % in isopropanol; 5 wt. % in H2O
• 级别: activated; Brockmann I; CP; for complexometry; for drying; puriss.; purum p.a.; SAJ special grade; standard grade
• 颗粒大小: ~150 mesh; <25 nm (XRD); <50 nm (BET); <50 nm (DLS); <50 nm (TEM); ≤6 mm; 0.05-0.15 mm; 1/4-1/2 in.; -100 mesh; 100-200 mesh; 100-325 mesh; 100-400 mesh; 150-325 mesh; 200-325 mesh; 2-5 mm; 3 mm; -325 mesh; 4.4 μm (avg.); 5 μm; 5.65 μm (avg.); 6-12 mesh; 8-14 mesh
• 孔径尺寸: 3.8 nm average pore size; 58 Å; 58 Å pore size; 6.5 nm pore size
• 简要说明: Crystallographic D spacing ((0001) - c plane: 2.165 Angstrom); Crystallographic D spacing ((1011) - s plane: 1.961 Angstrom); Crystallographic D spacing ((1040) - m plane: 1.375 Angstrom); Crystallographic D spacing ((1102) - r plane: 1.740 Angstrom); Crystallographic D spacing ((1120) - a plane: 2.379 Angstrom); Crystallographic D spacing ((1123) - n plane: 1.147 Angstrom); gamma phase; molecular sieve; single side polished; weakly acidic
• 杂质: ≤0.005% heavy metals (as Pb); ≤0.2% alkalis (as Na2O)
• 痕量阳离子: Ca: ≤500 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤100 mg/kg; Fe: ≤300 mg/kg; K: ≤100 mg/kg; Na: ≤1000 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• 痕量阴离子: chloride (Cl-): ≤50 mg/kg; silicate (as SiO2): ≤1000 mg/kg; sulfate (SO42-): ≤1000 mg/kg; sulfate (SO42-): ≤500 mg/kg
• 其他组分: CaSO4 as binder
• 比表面积: >40 m2/g (BET); 155 m2/g; 70 m2/g; 85-115 m2/g (BET)
• 干燥失重: ≤0.3% loss on ignition; ≤0.5% loss on ignition, 1000 °C, 2 h
• 产品类型: for removing tert-butylcatechol; Type A-5; Type WA-4: Acid; Type WA-7: Acid; Type WB-5: Basic; Type WN-3: Neutral; Type WN-6, Neutral
• 品质说明: activated, neutral; for the determination of hydrocarbons; neutral
• 硬度: 9 mohs
• 平均颗粒大小: ≤10 μm
• 尺寸: 10 mm × 10 mm × 0.5 mm
• 直径 × 长度: 2-6 nm × 200-400 nm
• 主要颗粒大小: 13 nm (TEM)
• 线性分子式: Al2O3
• Empirical Formula (Hill Notation): Al2O3

详细说明

MP Biomedicals - 0202152

Specific Surface Area: 200 m^2/g
Particle Size: 10-18 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204514

Mean Pore Size: 60Å
Particle Size: 50-200 μm
Bulk Density: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202075

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0202056

Specific Surface Area: 200 m^2/g
Particle Size: 18-32 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202061

Specific Surface Area: 200 m^2/g
Particle Size: 32-63 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204655

Neutral H15152

MP Biomedicals - 0204583

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202059

Specific Surface Area: 200 m^2/g
Particle Size: 18-32 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204340

Specific Surface Area: 200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: 9.0

MP Biomedicals - 0202020

Specific Surface Area: 200 m^2/g
Particle Size: 32-63 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202063

Specific Surface Area: 200 m^2/g Particle Size: 18-32 μm Weight: 0.8 g/ml pH: 4.5

MP Biomedicals - 0204568

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0204346

Specific Surface Area: 200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: 4.5

MP Biomedicals - 0202084

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204409

Contains 11% Gypsum
Specific Surface Area: 200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: 7.5

MP Biomedicals - 0202025

Basic Technical A

MP Biomedicals - 0204574

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0204511

Mean Pore Size: 60Å
Particle Size: 50-200 μm
Bulk Density: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202142

Specific Surface Area: 200 m^2/g
Particle Size: 3-6 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204601

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0202078

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0202148

Specific Surface Area: 200 m^2/g
Particle Size: 7-12 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202151

Specific Surface Area: 200 m^2/g
Particle Size: 10-18 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202143

Specific Surface Area: 200 m^2/g
Particle Size: 3-6 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202040

Specific Surface Area: 200 m^2/g Particle Size: 32-63 μm Weight: 0.8 g/ml pH: 10.0

MP Biomedicals - 0204595

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0204571

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 02100255

Tested and standardized for absorptive capacity 10-20% solids priced according to gross gel weight; Prepared per Methods of Enzymology, Vol. 1, page 97.

MP Biomedicals - 0204654

Neutral H15152

MP Biomedicals - 0204347

Specific Surface Area:200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: 4.5

MP Biomedicals - 0202099

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0204691

Particle Size: 63-200 μm
Weight: 0.18 g/ml
pH: 10.0

MP Biomedicals - 0202041

Specific Surface Area: 200 m^2/g
Particle Size: 32-63 μm
Weight: 0.8 g/ml
pH: 10.0

MP Biomedicals - 0202090

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204580

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202087

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202069

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0204589

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202105

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0202018

Technical H31101

MP Biomedicals - 0202072

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0204512

Mean Pore Size: 60Å
Particle Size: 50-200 μm
Bulk Density: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202102

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0204344

Specific Surface Area: 200 m^2/g Particle Size: 5-25 μm Weight: 0.7 g/ml pH: 7.5

MP Biomedicals - 0204598

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0202029

1-3 mm

MP Biomedicals - 0204592

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0202027

Basic Technical A

MP Biomedicals - 0202062

Specific Surface Area: 200 m^2/g Particle Size: 32-63 μm Weight: 0.8 g/ml pH: 7.5

MP Biomedicals - 0202135

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204341

Specific Surface Area:200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: > 9.0

MP Biomedicals - 0204586

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0202057

Specific Surface Area: 200 m^2/g
Particle Size: 18-32 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204413

Contains 11% Gypsum
Specific Surface Area: 200 m^2/g
Particle Size: 5-25 μm
Weight: 0.7 g/ml
pH: 7.5

MP Biomedicals - 0202159

Specific Surface Area: 150 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 4.5

MP Biomedicals - 0204569

Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10.0

MP Biomedicals - 0202065

Specific Surface Area: 200 m^2/g
Particle Size: 18-32 μm
Weight: 0.8 g/ml
pH: 10.0

MP Biomedicals - 0202026

Specific Surface Area: 200 m^2/g Particle Size: 32-63 μm Weight: 0.8 g/ml pH: 7.5

MP Biomedicals - 0202058

Specific Surface Area: 200 m^2/g
Particle Size: 18-32 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204577

Specific Surface Area: 200 m^2/g
Particle Size: 63-200 μm
Weight: 0.8 g/ml
pH: 10

MP Biomedicals - 0202149

Specific Surface Area: 200 m^2/g
Particle Size: 7-12 μm
Weight: 0.8 g/ml
pH: 7.5

MP Biomedicals - 0204692

Particle Size: 63-200 μm
Weight: 0.18 g/ml
pH: 10.0

Sigma Aldrich - 306312

Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
General description
抑制剂清除剂填充物和即用型一次性预包装填充柱可方便地除去试剂或溶剂中添加的少量抑制剂，这些抑制剂可使试剂或溶剂保持稳定。R：20-37 S：22-38-36
• 用于需要在使用前除去稳定剂或抑制剂（氢醌 (HQ)、对苯二酚单甲醚（MEHQ、4-甲氧基苯酚）或 4-叔丁基邻苯二酚 (TBC)）的应用。
• 使用后填充柱可丢弃1，或用新的填充料填充全部容量的大约 3/4 即可再次使用。HQ/MEHQ 柱再填充量：约 21g。TBC 柱再填充量：约 30g。
• 近似柱容量： HQ/MEHQ：3L (100ppm) TBC：4L (15ppm)
• 建议不要将 TBC 柱和填充料用于极性溶剂，包括丙烯酸。建议这些应用中采用真空蒸馏。 操作简便： 1. 建议用少量单体预清洗预包装玻璃柱。 2.将单体（或溶剂）加入固定在柱上方的加料漏斗中。 3.将单体逐滴加入柱中。注意滴加速度，防止溢出柱。用适当的容器收集单体。 4.对于低熔点固态单体，使用过程中使柱温保持在熔点以上。 小心：过热可能使单体在柱上发生聚合。粘稠或高熔点单体应当用适当的溶剂稀释后再加入柱。 1未使用的柱可随固体化学废物一起丢弃。用过的填充料或填充柱应考虑单体（即将除去其中的抑制剂）的毒性和危害，再决定如何处理。
包装
1, 12 ea in glass tube

Sigma Aldrich - 702129

包装
100, 500 g in glass bottle

Sigma Aldrich - 202606

包装
5, 20, 100 g in poly bottle

Sigma Aldrich - 517747

包装
5 g in glass bottle

Sigma Aldrich - 634875

包装
1, 5 ea in rigid mailer
Physical form
Crystalline, hexagonal (a = 4.758 Å, c = 12.992)
Features and Benefits
III-V 族氮化物及许多其他外延膜的常用基底。
Physical properties
热膨胀 = 7.5×10-6/°C；比热 = 0.10cal/°C；热导率 = 46.06 (0°C)，25.12 (100°C)，12.56 (400°C) (W/m,K)；介电常数 = ~9.4（300K，A 轴），~11.58（C 轴）；10GHz 时损耗正切 < 2×10-5（A 轴），5×10-6（C 轴）

Sigma Aldrich - 544833

包装
10, 50 g in glass bottle

Sigma Aldrich - 642991

Other Notes
无分散剂
包装
100 mL in glass bottle

Sigma Aldrich - A8753

Other Notes
反应活性 I

Sigma Aldrich - 229423

Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
包装
25, 100 g in poly bottle

Sigma Aldrich - 311340

General description
抑制剂清除剂填充物和即用型一次性预包装填充柱可方便地除去试剂或溶剂中添加的少量抑制剂，这些抑制剂可使试剂或溶剂保持稳定。R：20-37 S：22-38-36
• 用于需要在使用前除去稳定剂或抑制剂（氢醌 (HQ)、对苯二酚单甲醚（MEHQ、4-甲氧基苯酚）或 4-叔丁基邻苯二酚 (TBC)）的应用。
• 使用后填充柱可丢弃1，或用新的填充料填充全部容量的大约 3/4 即可再次使用。HQ/MEHQ 柱再填充量：约 21g。TBC 柱再填充量：约 30g。
• 近似柱容量： HQ/MEHQ：3L (100ppm) TBC：4L (15ppm)
• 建议不要将 TBC 柱和填充料用于极性溶剂，包括丙烯酸。建议这些应用中采用真空蒸馏。 操作简便： 1. 建议用少量单体预清洗预包装玻璃柱。 2.将单体（或溶剂）加入固定在柱上方的加料漏斗中。 3.将单体逐滴加入柱中。注意滴加速度，防止溢出柱。用适当的容器收集单体。 4.对于低熔点固态单体，使用过程中使柱温保持在熔点以上。 小心：过热可能使单体在柱上发生聚合。粘稠或高熔点单体应当用适当的溶剂稀释后再加入柱。 1未使用的柱可随固体化学废物一起丢弃。用过的填充料或填充柱应考虑单体（即将除去其中的抑制剂）的毒性和危害，再决定如何处理。
包装
250, 500 g in poly bottle

Sigma Aldrich - 199443

General description
Brockmann 氧化铝适用于柱色谱或吸附过滤。
包装
1 kg in poly bottle
5 g in glass bottle
100 g in poly bottle
5, 20 kg in poly drum

Sigma Aldrich - 342696

包装
100 g in poly bottle

Sigma Aldrich - 311332

General description
抑制剂清除剂填充物和即用型一次性预包装填充柱可方便地除去试剂或溶剂中添加的少量抑制剂，这些抑制剂可使试剂或溶剂保持稳定。R：20-37 S：22-38-36
• 用于需要在使用前除去稳定剂或抑制剂（氢醌 (HQ)、对苯二酚单甲醚（MEHQ、4-甲氧基苯酚）或 4-叔丁基邻苯二酚 (TBC)）的应用。
• 使用后填充柱可丢弃1，或用新的填充料填充全部容量的大约 3/4 即可再次使用。HQ/MEHQ 柱再填充量：约 21g。TBC 柱再填充量：约 30g。
• 近似柱容量： HQ/MEHQ：3L (100ppm) TBC：4L (15ppm)
• 建议不要将 TBC 柱和填充料用于极性溶剂，包括丙烯酸。建议这些应用中采用真空蒸馏。 操作简便： 1. 建议用少量单体预清洗预包装玻璃柱。 2.将单体（或溶剂）加入固定在柱上方的加料漏斗中。 3.将单体逐滴加入柱中。注意滴加速度，防止溢出柱。用适当的容器收集单体。 4.对于低熔点固态单体，使用过程中使柱温保持在熔点以上。 小心：过热可能使单体在柱上发生聚合。粘稠或高熔点单体应当用适当的溶剂稀释后再加入柱。 1未使用的柱可随固体化学废物一起丢弃。用过的填充料或填充柱应考虑单体（即将除去其中的抑制剂）的毒性和危害，再决定如何处理。
包装
250, 500 g in poly bottle

Sigma Aldrich - 234745

包装
2.5 kg in poly bottle
500 g in poly bottle

Sigma Aldrich - 199974

包装
1 kg in poly bottle
5 g in glass bottle
Brockmann 氧化铝适用于柱色谱或吸附过滤。
100 g in poly bottle
5 kg in poly drum

Sigma Aldrich - A1772

Other Notes
反应活性超 I 级

Sigma Aldrich - 199966

General description
Brockmann 氧化铝适用于柱色谱或吸附过滤。
包装
1 kg in poly bottle
100 g in poly bottle
5 kg in poly drum

Sigma Aldrich - 342661

包装
1 kg in poly bottle

Sigma Aldrich - 342688

包装
1 kg in poly bottle
100 g in poly bottle

Sigma Aldrich - 643092

Other Notes
无分散剂

Sigma Aldrich - 718475

包装
100 g in poly bottle
法律信息
Aeroxide 注册商标 Evonik Degussa GmbH

Sigma Aldrich - A1522

包装
1 kg in poly bottle
100, 500 g in poly bottle

Sigma Aldrich - A1647

Other Notes
反应活性超 I 级
包装
250 g in poly bottle

Sigma Aldrich - 309117

Physical form
干燥剂形式

Sigma Aldrich - 342718

包装
100 g in poly bottle

Sigma Aldrich - 06290

General description
Brockmann 氧化铝适用于柱色谱或吸附过滤。

Sigma Aldrich - 06300

General description
Brockmann 氧化铝适用于柱色谱和吸附过滤。

Sigma Aldrich - 551643

General description
Aspect ratio estimated to be >100 based on TEM.
包装
10, 50 g in poly bottle

Sigma Aldrich - A9003

Other Notes
反应活性 I

Sigma Aldrich - 414069

包装
1 kg in poly bottle
250 g in poly bottle

Sigma Aldrich - 342726

包装
100 g in poly bottle

Sigma Aldrich - 517755

包装
5 g in glass bottle

Sigma Aldrich - 342653

包装
1 kg in poly bottle
100 g in poly bottle

Sigma Aldrich - 06320

General description
Brockmann 氧化铝适用于柱色谱和吸附过滤。
Other Notes
用作高选择性有机反应的载体，参与反应的一些试剂吸附在氧化铝的表面1,2

Sigma Aldrich - 306320

Application
即用型预包装一次性填充柱，用于除去常用抑制剂 4-叔丁基邻苯二酚
General description
抑制剂清除剂填充物和即用型一次性预包装填充柱可方便地除去试剂或溶剂中添加的少量抑制剂，这些抑制剂可使试剂或溶剂保持稳定。R：20-37 S：22-38-36
• 用于需要在使用前除去稳定剂或抑制剂（氢醌 (HQ)、对苯二酚单甲醚（MEHQ、4-甲氧基苯酚）或 4-叔丁基邻苯二酚 (TBC)）的应用。
• 使用后填充柱可丢弃1，或用新的填充料填充全部容量的大约 3/4 即可再次使用。HQ/MEHQ 柱再填充量：约 21g。TBC 柱再填充量：约 30g。
• 近似柱容量： HQ/MEHQ：3L (100ppm) TBC：4L (15ppm)
• 建议不要将 TBC 柱和填充料用于极性溶剂，包括丙烯酸。建议这些应用中采用真空蒸馏。 操作简便： 1. 建议用少量单体预清洗预包装玻璃柱。 2.将单体（或溶剂）加入固定在柱上方的加料漏斗中。 3.将单体逐滴加入柱中。注意滴加速度，防止溢出柱。用适当的容器收集单体。 4.对于低熔点固态单体，使用过程中使柱温保持在熔点以上。 小心：过热可能使单体在柱上发生聚合。粘稠或高熔点单体应当用适当的溶剂稀释后再加入柱。 1未使用的柱可随固体化学废物一起丢弃。用过的填充料或填充柱应考虑单体（即将除去其中的抑制剂）的毒性和危害，再决定如何处理。
包装
1, 12 ea in glass tube

Sigma Aldrich - A2039

Application
适用于通过研磨或混合分裂酵母细胞和其他微生物。

Sigma Aldrich - 267740

包装
1 kg in poly bottle
Brockmann 氧化铝适用于柱色谱或吸附过滤。
250 g in poly bottle
5 kg in poly drum

Sigma Aldrich - 342742

Application
适用于真空淀积。

Sigma Aldrich - 265497

包装
2.5 kg in poly bottle
25, 500 g in poly bottle
Application
适用于陶瓷或耐火材料。

Sigma Aldrich - 342750

包装
50, 250 g in poly bottle
Application
适用于真空淀积。