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Ammonium Lauryl Sulfate

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Ammonium Lauryl Sulfate, Safety Data Sheet

Uses

A CIR report concluded that sodium and ammonium lauryl sulfate "appear to be safe in formulations designed for discontinuous, brief use, followed by a thorough rinsing from the surface of the skin. In products intended for longer use concentrations should not exceed 1%.

An anionic surfactant, it lowers the tension surface of water. It is often added to products as a foaming agent and as a detergent. Used commonly in shampoos and skin cleansers.

Details

Other Names: Ammonium Dodecyl Sulfate, Monododecyl Ester, Ammonium Salt
CAS: 2235-54-3
Appearance: Thick yellowish liquid.
INCI Name: Ammonium Lauryl Sulfate
Solubility: Soluble in water
Natural or Synthetic: Synthetic
Recommended Retest or Shelf Life: 2+ years
Storage: Cool dry place.

Cautions

Not for Ingestion.In high concentrations this molecule may cause severe irritation to eyes and skin. Inhalation may cause irritation to the respiratory system. Ingestion may cause irritation, nausea or diarrhea.

History & Notes

Ammonium lauryl sulfate, like any other surfactant, makes a good base for cleansers because of the way it disrupts the hydrogen bonding in water. Hydrogen bonding is the primary contributor to the high surface tension of water. In solution, the lauryl sulfate molecules ionize, meaning that the ammonium or sodium separates from the rest of the molecule as a cation. The rest of the molecule aligns itself with others like it and forms what is known as a micelle. The molecules align themselves in a sphere, with the polar heads (the sulfate) on the surface of the sphere and the polar hydrophopic tails pointing inwards towards the center. The water molecules around the micelle arrange themselves around the polar heads, but this disrupts their hydrogen bonding with the water surrounding them. The overall effect of having these micelles in an aqueous (water) environment is that the water becomes more able to penetrate things like cloth fibers or hair, and also becomes more readily available to solvate anything coming off the before mentioned substance.

In high concentrations this molecule may cause severe irritation to eyes and skin. Inhalation may cause irritation to the respiratory system. Ingestion may cause irritation, nausea or diarrhea.

In a 1983 report by the Cosmetic Ingredient Review, shampoos containing up to 31% ALS registered 6 health complaints out of 6.8 million units sold. These complaints included two of scalp itch, two allergic reactions, one hair damage and one complaint of eye irritation.

The CIR report concluded that both Sodium Lauryl Sulfate and Ammonium Lauryl Sulfate appear to be safe in formulations designed for discontinuous, brief use followed by thorough rinsing from the surface of the skin. In products intended for prolonged use, concentrations should not exceed 1%.

The Human and Environmental Risk Assessment (HERA) project performed a thorough investigation of all alkyl sulfates, as such the results they found apply directly to ALS. Most alkyl sulfates exhibit low acute oral toxicity, no toxicity through exposure to the skin, concentration dependent skin irritation, and concentration dependent eye-irritation. They do not sensitize the skin and did not appear to be carcinogenic in a two year study on rats. The report found that longer carbon chains (16-18) were less irritating to the skin than chains of 12-15 carbons in length. In addition, concentrations below 1% were essentially non-irritating while concentrations greater than 10% produced moderate to strong irritation of the skin

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How Fast Can I get it?

We Guarantee Your order ships out the same or next business day! This means in the South East you will have your order in 1 to 3 business days, in the North East normally 3 to 4 days and in the West normally 4 to 5 days. For full details on shipping and processing times please see our expected delivery times.

These times are based on business days, not including weekends or holidays.

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Typical Delivery Times to Major US Cities

Major Cities Total Business Days +1 / -1
Alabama (AL) - Montgomery, Birmingham 1
Alaska (AK) - Juneau, Anchorage 7
Arizona (AZ) - Phoenix, Tucson 4
Arkansas (AR) - Little Rock, Fayetteville 2
California (CA) - Sacramento, Los Angeles, San Francisco, San Diego, Sacramento, San Jose 4
Colorado (CO) - Denver, Colorado Springs 3
Connecticut (CT) - Hartford, New Haven 2
Delaware (DE) - Dover, Wilmington, Newark 2
Florida (FL) - Tallahassee, Orlando, Miami, Jacksonville, Tampa, Destin 2
Georgia (GA) - Atlanta, Savannah, Augusta, Athens 1
Hawaii (HI) - Honolulu, Kailua 7
Idaho (ID) - Boise, Coeur d'Alene 4
Illinois (IL) - Springfield, Chicago, Peoria, Rockford 2
Indiana (IN) - Indianapolis, Fort Wayne 2
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Kansas (KS) - Topeka, Wichita, Kansas City 2
Kentucky (KY) - Frankfort, Louisville, Lexington 2
Louisiana (LA) - Baton Rouge, New Orleans, Lafayette 2
Maine (ME) - Augusta, Portland, Bangor 3
Maryland (MD) - Annapolis, Baltimore 2
Massachusetts (MA) - Boston, Cambridge, Worcester 2
Michigan (MI) - Lansing, Detroit, Grand Rapids 2
Minnesota (MN) - St. Paul, Minneapolis, Duluth 3
Mississippi (MS) - Jackson, Biloxi, Hattiesburg 1
Missouri (MO) - Jefferson City, St Louis, Kansas City 2
Montana (MT) - Helena, Billings 4
Nebraska (NE) - Lincoln, Omaha 2
Nevada (NV) - Carson City, Las Vegas, Reno 4
New Hampshire (NH) - Concord, Manchester, Portsmouth 2
New Jersey (NJ) - Trenton, Newark, Jersey City 2
New Mexico (NM) - Santa Fe, Alburquerque 3
New York (NY) - Albany, New York, Rochester, Buffalo, Albany, Syracuse, Niagara Falls, Ithaca 3
North Carolina (NC) - Raleigh, Charlotte 2
North Dakota (ND) - Bismarck, Fargo 3
Ohio (OH) - Columbus, Cleveland, Cincinnati 2
Oklahoma (OK) - Oklahoma City, Fairview, 2
Oregon (OR) - Salem, Portland, Eugene 5
Pennsylvania (PA) - Harrisburg, Philadelphia, Pittsburgh 2
Rhode Island (RI) - Providence, Newport 2
South Carolina (SC) - Columbia, Charleston 1
South Dakota (SD) - Pierre, Sioux Falls, Rapid City 3
Tennessee (TN) - Nashville, Memphis 2
Texas (TX) - Austin, Houston, Dallas 3
Utah (UT) - Salt Lake City, St. George 3
Vermont (VT) - Montpelier, Burlington 3
Virginia (VA) - Richmond, Virginia Beach 2
Washington (WA) - Olympia, Seattle, Vancouver, Spokane 5
West Virginia (WV) - Charleston, Morgantown 2
Wisconsin (WI) - Madison, Milwaukee 2
Wyoming (WY) - Cheyenne, Jackson 4

How Does this Ship?

Our ingredients are normally shipped out in strong, re-closeable plastic bags, the larger sizes (50 lbs size and multiples of 50 Lb) are shipped in strong paper / plastic industrial strength bags typically used for 50 lb chemicals. In some cases, depending on stock levels, we might use multiple bags to fulfill an order, for example, 16 lbs might be 4 x 4 lbs rather than a single 16 lb bag. If the packaging size is a concern please contact us and we will be happy to work with you.

Safety Data Sheet (Ammonium-Lauryl-Sulfate.pdf, 124 Kb) [Download]

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