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H₂O₂ working-solution components
TBU

Tetrabutylurea

Polar co-solvent for anthraquinone working solutions, evaluated against carrier solubility and plant conditions.

CAS 4559-86-8Industrial gradeTDS · SDS · COA
Chemical identity
CAS4559-86-8
Molecular formulaC₁₇H₃₆N₂O
Molecular weight284.5 g/mol
Before purchase

Identity is checked against a public reference. Specification limits, grades, packaging and HS codes are not supplier-certified here; confirm the controlled TDS, SDS and batch COA before purchase.

Product overview

Polar co-solvent for anthraquinone working solutions, evaluated against carrier solubility and plant conditions.

Application considerations

  • Polar solvent for hydrogen peroxide working solutions
  • Working-carrier solubility adjustment
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Reference specifications

Values originate from the supplied handover brief, not a controlled supplier TDS. Test methods and order limits need confirmation.

Tetrabutylurea reference specifications
ParameterReference value
AppearanceColourless liquid
Purity≥ 99.5%
Density (20 °C)0.877 ± 0.003 g/cm³
Flash point≥ 140 °CCup type and test method are not specified; confirmation is required.
Water content≤ 0.1%
Sulfur content≤ 1 ppm
Chlorine content≤ 10 ppm
Di-n-butylamine≤ 0.1%

Before your inquiry

What is TBU?

Tetrabutylurea · CAS 4559-86-8 · C₁₇H₃₆N₂O · 284.5 g/mol.

Where is it used?

Polar solvent for hydrogen peroxide working solutions; Working-carrier solubility adjustment. Suitability must be validated for your formulation and process.

Which specification applies to the order?

Listed grades: Industrial grade. Website values are unverified procurement references, not a batch guarantee. Confirm the controlled TDS and actual batch COA.

How is packaging and shipping confirmed?

Reference packaging: 200 kg steel drums / IBC totes. Confirm net weight, material compatibility, SDS classification and carrier acceptance before ordering.

Packaging & documents

200 kg steel drums / IBC totes · TDS / SDS / COA

Availability, packaging, certificates and export eligibility are confirmed case by case. Request documents for the exact grade and destination.

Document and transport checks →

Identity reference: PubChem CID 20691 · Checked 2026-10-01

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