Ethylenesulfate / DTD

Product Name	Ethylenesulfate (DTD) (1,3,2-Dioxathiolane 2,2-dioxide \| Ethylene Glycol Cyclic Sulfate)
CAS NO.	1072-53-3
Formula & Weight	C2H4O4S (MW: 124.12)
Chemical Structure
Battery Grade Specs	Appearance: White crystalline powder Purity (GC): ≥ 99.9% (Electronic Grade) Moisture (K.F.): ≤ 100 ppm (Strictly Controlled) Acid Value: ≤ 0.1 mg KOH/g Chloride (Cl-): ≤ 1 ppm
Key Performance (Li-ion Battery)	1. Robust SEI Formation DTD decomposes on the graphite anode surface to form a compact, stable, and low-impedance Solid Electrolyte Interphase (SEI). This layer effectively suppresses further electrolyte decomposition. 2. Enhanced Cycle Life Significantly improves capacity retention over long-term cycling by preventing electrode exfoliation and structural degradation. 3. High-Temperature Stability Reduces battery swelling (gas generation) and maintains performance even under high-temperature storage conditions.
Other Applications	Pharma Intermediate: Used as a hydroxyethylation reagent in organic synthesis. Chemical Synthesis: Acts as a raw material for heterocyclic compounds and specific surfactants.
Packaging & Storage	Packing: PE Drum Storage: Store in a cool (2-8°C recommended), dry place under inert gas. Moisture Sensitive.

Royalchem provides Battery Grade DTD (99.9%+) with ultra-low moisture content, ensuring optimal performance for your lithium-ion cells.

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