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31481

Sigma-Aldrich

硫酸钠

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.0%

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About This Item

線性公式:
Na2SO4
CAS號碼:
7757-82-6
分子量：:
142.04
EC號碼:
231-820-9
MDL號碼:
MFCD00003504
分類程式碼代碼:
12352302
PubChem物質ID:
329753782
NACRES:
NA.22

等級

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

化驗

≥99.0%

形狀

crystalline

雜質

≤0.0005% heavy metals (by ICP-OES)
≤0.0005% total nitrogen (N)
≤0.01% in water insoluble matters
≤0.03% free alkali (as NaOH)
≤0.05% free acid (as H2SO4)

損耗

≤0.5% loss on ignition, 800 °C

pH值

5.2-8.0 (20 °C, 5%)

mp

884 °C (lit.)

密度

2.68 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤10 mg/kg

正離子痕跡

As: ≤1 mg/kg
Ca: ≤20 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Mg: ≤25 mg/kg

適合性

complies for appearance of solution

儲存溫度

2-8°C

SMILES 字串

[Na+].[Na+].[O-]S([O-])(=O)=O

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI 密鑰

PMZURENOXWZQFD-UHFFFAOYSA-L

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儲存類別代碼

13 - Non Combustible Solids

水污染物質分類（WGK）

WGK 1

閃點（°F）

Not applicable

閃點（°C）

Not applicable

分析證明 (COA)

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Active targeting of nanoscale drug carriers can improve tumor-specific delivery; however, cellular heterogeneity both within and among tumor sites is a fundamental barrier to their success. Here, we describe a tumor microenvironment-responsive layer-by-layer (LbL) polymer drug carrier that actively targets
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In this work, we characterize physical hydrogels based on poly(vinyl alcohol), PVA, as intelligent biointerfaces for surface-mediated drug delivery. Specifically, we assemble microstructured (μS) surface adhered hydrogels via noncryogenic gelation of PVA, namely polymer coagulation using sodium sulfate (Na(2)SO(4)). We
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