过滤

无水磷酸氢二钠，Sodium phosphate dibasic；anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

别名：磷酸氢二钠；磷酸钠二元；二盐基磷酸钠；磷酸一氢钠；磷酸二钠；磷酸氢二钠；sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

线性分子式: Na2HPO4 CAS号: 7558-79-4 分子量: 141.96 EC 号: 231-448-7 MDL编号: MFCD00003496 PubChem化学物质编号: 329768481 NACRES: NA.21

制造商品牌: Sigma-Aldrich

货号（SKU）: 795410

CAS号: 7558-79-4

MDL号: MFCD00003496

技术支持 √ 增值税发票 √ 免费送货 √ 质量保障 √

¥407.85

数量:

说明

一般描述

Redi-Dri^™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri^™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri^™ saves you time, energy and money by keeping your salts usable for longer!

特点和优势

Increased efficiency – Eliminate time and effort of loosening hardened powders
Safety – Avoid risks of using tools of force to break up clumps
Economy – Faster preparation and solvation increase productivity and reduce costs
Assured quality – Excellent, expert-tested quality with no anti-caking agents
Flexible volumes – Available from research amounts to scale-up quantities

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

属性

等级

ACS reagent
anhydrous

质量水平

100

产品线

Redi-Dri^™

测定

≥99%

形式

powder

质量

free-flowing

杂质

≤0.002% Chloride (Cl)
≤0.01% Insoluble matter

缺失

≤0.2% loss on drying, 105°C

pH值（酸碱度）

8.7-9.3 (25 °C, 5% in solution)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

痕量阴离子

sulfate (SO₄^2-): ≤0.005%

痕量阳离子

Fe: ≤0.002%
heavy metals: ≤0.001% (by ICP-OES)

SMILES string

[Na+].[Na+].[H]OP([O-])([O-])=O

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

安全信息

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

商品规格

属性名称	属性值
储存温度 Storage temp.	常温阴凉避光
全球实时库存 Availability √	美国St. Louis ≥ 99 \| 欧洲Eur. ≥ 10 \| 東京Tokyo ≥ 22 \| 香港与北京 ≥ 32

商品标签 [tags]

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