:root {
--ink: #16181d;
--text: #4b5768;
--border: #e7e9ec;
--row-alt: #f6f7f8;
--rust: #b5540f;
--teal: #1f5f6b;
--callout-bg: #fdf5e9;
--callout-border: #efe0c4;
--max: 820px;
}
* { box-sizing: border-box; }
body {
margin: 0;
background: #ffffff;
color: var(--text);
font-family: "Inter", system-ui, -apple-system, sans-serif;
font-size: 15.5px;
line-height: 1.5;
}
.page { max-width: var(--max); margin: 0 auto; padding: 32px 24px 48px; }
h2 { color: var(--ink); font-size: 19px; font-weight: 700; margin: 0 0 6px; }
section { margin-top: 22px; }
section:first-child { margin-top: 0; }
p { margin: 0 0 4px; text-indent: 0; }
p:last-child { margin-bottom: 0; }
table.identity {
width: 100%; border-collapse: collapse; border: 1px solid var(--border);
border-radius: 8px; overflow: hidden; margin-top: 10px;
}
table.identity th, table.identity td {
text-align: left; padding: 12px 20px; font-weight: 400;
border-bottom: 1px solid var(--border); font-size: 15px;
}
table.identity tr:last-child th, table.identity tr:last-child td { border-bottom: none; }
table.identity th { color: var(--ink); font-weight: 600; width: 45%; }
table.identity td { color: var(--text); }
table.identity tr:nth-child(odd) { background: var(--row-alt); }
table.props {
width: 100%; border-collapse: collapse; border: 1px solid var(--border);
border-radius: 8px; overflow: hidden; margin-top: 4px;
}
table.props th, table.props td {
text-align: left; padding: 11px 20px; border-bottom: 1px solid var(--border);
font-size: 15px; font-weight: 400;
}
table.props tr:last-child th, table.props tr:last-child td { border-bottom: none; }
table.props th { color: var(--ink); font-weight: 500; width: 55%; }
table.props td { color: var(--text); }
table.props tr:nth-child(odd) { background: var(--row-alt); }
.props-note { margin-top: 10px; font-size: 13.5px; color: #8a93a1; }
ul.dot-list { list-style: none; margin: 0; padding: 0; }
ul.dot-list li { position: relative; padding: 5px 0 5px 20px; font-size: 15px; }
ul.dot-list li::before {
content: ""; position: absolute; left: 2px; top: 14px;
width: 6px; height: 6px; border-radius: 50%; background: var(--rust);
}
.callout {
background: var(--callout-bg); border: 1px solid var(--callout-border);
border-left: 4px solid var(--rust); border-radius: 6px; padding: 14px 20px;
font-size: 15px; color: #5c5140; margin-top: 8px;
}
.important-box {
background: var(--callout-bg); border: 1px solid var(--callout-border);
border-left: 4px solid var(--rust); border-radius: 6px; padding: 18px 24px;
}
.important-box h3 { margin: 0 0 6px; font-size: 17px; font-weight: 700; color: var(--ink); }
.important-box p { margin: 0; color: #5c5140; font-size: 15px; }
.info-panel {
background: var(--row-alt); border: 1px solid var(--border);
border-top: 3px solid var(--teal); border-radius: 6px; padding: 20px 28px 22px;
}
.info-panel h3 { margin: 0 0 3px; font-size: 18px; font-weight: 700; color: var(--ink); }
.info-panel .tagline { margin: 0 0 14px; font-size: 14.5px; color: #7a8494; }
.info-row {
display: flex; justify-content: space-between; gap: 20px; padding: 10px 0;
border-bottom: 1px solid var(--border); font-size: 15px;
}
.info-row:last-of-type { border-bottom: none; }
.info-row .label { color: #7a8494; }
.info-row .value { color: var(--ink); font-weight: 500; text-align: right; }
.info-contact {
margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border);
font-size: 14.5px; color: var(--text);
}
.disclaimer { font-size: 13.5px; color: #8a93a1; line-height: 1.6; }
@media (max-width: 600px) {
.page { padding: 24px 18px 40px; }
table.identity th, table.identity td, table.props th, table.props td { padding: 10px 14px; }
}
Product description
Miles® Surfactant 91-6 is a biodegradable, nonionic primary alcohol ethoxylate based on a C9–C11 alcohol with an average of 6 moles of ethylene oxide. It is an effective detergent, wetting agent and dispersant used in household and industrial cleaners, hard-surface cleaners and oilfield applications.
It is recommended as an NPE (nonylphenol ethoxylate) replacement and meets the U.S. EPA Safer Choice criteria. Available in drums and totes.
Chemical name
Alcohols, C9–C11, ethoxylated (approx. 6 EO)
CAS number
68439-46-3
Chemistry
Primary alcohol ethoxylate, nonionic
HLB
Approx. 12.5
Typical applications
Miles® Surfactant 91-6 is suitable for use in applications including:
Household detergents
Industrial and hard-surface cleaners
Wetting agent and dispersant
Oilfield applications
NPE replacement in cleaning formulations
Typical physical properties
Appearance
Clear to slightly hazy liquid
Chemistry
Primary alcohol ethoxylate (C9–C11), nonionic
CAS number
68439-46-3
Average moles of ethylene oxide
approx. 6
HLB
approx. 12.5
Cloud point (1% aqueous)
approx. 54°C (range 47–58°C)
Pour point
approx. 6°C (43°F)
Density
approx. 0.976 g/mL at 40°C
Flash point
approx. 143°C (289°F)
Water content
0.1% maximum
Color
50 Pt-Co maximum
pH (1% aqueous)
approx. 5.5–7.5
Physical property values are typical for C9–C11 six-mole alcohol ethoxylates. Confirm against the manufacturer's data sheet or Certificate of Analysis.
The values shown are typical physical properties and are not intended to constitute product specifications.
Product features
Biodegradable primary alcohol ethoxylate
Effective detergent, wetting agent and dispersant
Recommended as an NPE (nonylphenol ethoxylate) replacement
Meets the U.S. EPA Safer Choice criteria
Storage and handling
Keep containers closed and away from flammables, oxidizers and corrosives. Freezing can change the physical condition of the product without damaging it; thaw and mix before use, and avoid localized overheating.
Avoid contamination with incompatible materials.
Consult the applicable Miles® Safety Data Sheet (SDS) before handling, storing, or using this product.
Available packaging
Drum (464 lb)
Tote (2,205 lb)
Packaging availability may vary. Contact Miles Lubricants LLC for current packaging and minimum-order requirements.
Important
Miles® Surfactant 91-6 is intended for industrial applications. It should not be represented or used as USP, pharmaceutical, food, cosmetic, or personal-care grade unless the specific product supplied is independently certified for those applications.
Product information
Miles Lubricants LLC
Industrial lubricants, chemicals, and specialty fluids
Product Miles® Surfactant 91-6 (Drum / Tote)
CAS No. 68439-46-3
For product availability, technical information, and Safety Data Sheets, contact Miles Lubricants LLC.
Disclaimer
The information and typical properties contained in this Product Data Sheet are provided for general informational purposes and are believed to be accurate at the time of publication. Typical values are not specifications or guaranteed properties. Product users are responsible for determining the suitability, compatibility, safety, and regulatory compliance of the product for their particular application. Please consult the applicable Safety Data Sheet before use. Physical properties shown are typical for C9–C11 six-mole alcohol ethoxylates and should be confirmed against the manufacturer's data sheet or Certificate of Analysis.
