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WOOL YOLK

Wool yolk also called Lanolin, wool fat, wool wax, or wool grease, is a wax secreted by the sebaceous glands of wool-bearing animals.
Wool yolk is used as an active ingredient in over the counter topical products such as ointments, lubricants, lotions and facial cosmetics.
Wool yolk's role in nature is to protect wool and skin from climate and the environment.

CAS Number: 8006-54-0
EC Number: 232-348-6

Synonyms: Lanolin, 8006-54-0, 7EV65EAW6H, Anhydrous lanolin, Wool grease, Wool wax, refined, Black Rose, Lanashield, Lanolin, anhydrous, Skin Protectant with Lanolin, Theresienol MD Skin Protectant, Theriac Advanced Healing, 232-348-6, 3CE DRAWING LIP CHILLING, 4sport skincare anti chafing, AGNOLIN NO 1, AmeriDermDermaFix, CORONA MULTI-PURPOSE, CORONA ORIGINAL LANOLIN RICH, DTXSID2027678, EMERY 1600, EUCERITE, LANOLIN (II), LANOLIN (USP MONOGRAPH), LANOLIN (USP-RS), LANOLIN,ANHYDROUS LIQUID, Lana1263, LanoGuardDaily Care Skin Protectant, LanoGuardDry Skin Therapy, Lanoderm, Lantiseptic Dry Skin Therapy, Lantiseptic by DermaRite Original Skin Protectant, Lantiseptic by Dermarite Dry Skin Therapy, LincoFix, North Country Dairy Supply Non Iodine Barrier Dip, PrimaGuardDaily Care Skin Protectant, SUINTINE, Smartchoices Lanolin Plus0, Soothe and Cool Free Medseptic, Soothe and Cool Free MedsepticSkin Protectant

Wool yolk (from Latin lāna 'wool', and oleum 'oil'), also called Lanolin, wool fat, wool wax, or wool grease, is a wax secreted by the sebaceous glands of wool-bearing animals.
Wool yolk used by humans comes from domestic sheep breeds that are raised specifically for their wool.
Historically, many pharmacopoeias have referred to Wool yolk as wool fat (adeps lanae); however, as Wool yolk lacks glycerides (glycerol esters), it is not a true fat.

Wool yolk primarily consists of sterol esters instead.
Wool yolk's waterproofing property aids sheep in shedding water from their coats.
Certain breeds of sheep produce large amounts of Wool yolk.

Wool yolk is a principle component of Wool yolk, which is a natural product obtained from the fleece of sheep.
Wool yolk is found in steroid-containing creams/ointments, medicated shampoos, veterinary products, hand lotions, moisturizers, sunscreens, self-tanning creams, lipsticks, makeup removers, foundations, eye shadows, hairsprays, shaving creams, baby oils and products, printing inks, furniture and shoe polishes, lubricants, leather, and paper.

Wool yolk's role in nature is to protect wool and skin from climate and the environment.
Wool yolk also plays a role in skin (integumental) hygiene.
Wool yolk and its derivatives are used in the protection, treatment, and beautification of human skin

Wool yolk is a yellow fat obtained from sheep's wool.
Wool yolk is used as an emollient, cosmetic, and pharmaceutic aid.
The US federal code of regulations states that Wool yolk in the concentration range of 12-50% may be included in over the counter skin ointments.

Wool yolk is the purified, secreted product of the sheep sebaceous glands.
Wool yolk primarily consists of long-chain waxy esters, or sterol esters, that lack glycerides.
For this reason, Wool yolk is also called wool wax or wool grease.

Wool yolk is used in the protection, treatment, and cosmetic enhancement of human skin.
Wool yolk hydrophobic properties can help protect skin against infections or skin irritation, as Wool yolk helps seal in moisture that is already present in the skin.

Wool yolk is used as an active ingredient in over the counter topical products such as ointments, lubricants, lotions and facial cosmetics.
Wool yolk is also frequently used in protective baby skin treatment and for sore nipples in breastfeeding mothers,.

Wool yolk is a yellow fat obtained from sheep's wool.
Wool yolk is used as an emollient, cosmetic, and pharmaceutic aid.

The US federal code of regulations states that Wool yolk in the concentration range of 12-50% may be included in over the counter skin ointments.
Wool yolk is the purified, secreted product of the sheep sebaceous glands.

Wool yolk primarily consists of long-chain waxy esters, or sterol esters, that lack glycerides.
For this reason, Wool yolk is also called wool wax or wool grease.

Wool yolk is used in the protection, treatment, and cosmetic enhancement of human skin.
Wool yolk hydrophobic properties can help protect skin against infections or skin irritation, as Wool yolk helps seal in moisture that is already present in the skin.

Wool yolk is used as an active ingredient in over the counter topical products such as ointments, lubricants, lotions and facial cosmetics. 
Wool yolk is also frequently used in protective baby skin treatment and for sore nipples in breastfeeding mothers.

Wool yolk is a waxy substance that sheep naturally produce to protect their wool.
Because Wool yolk's properties are similar to those of the sebum (oil) secreted by human skin, Wool yolk is a popular ingredient in moisturizers, hair care products, and soaps.
Wool yolk is also widely promoted as a natural remedy for sore nipples due to breastfeeding.

The Wool yolk in the products you buy comes from sheep raised for their wool.
Wool yolk also goes by the names wool grease, wool wax, and Lanolin.

Wool yolk oil is a secretion from sheep’s skin.
Wool yolk is similar to human sebum, an oil secreted by the sebaceous glands that you may notice particularly on your nose.

Unlike sebum, Wool yolk contains no triglycerides.
Wool yolk is sometimes referred to as “wool fat,” but the term is misleading because Wool yolk lacks triglycerides needed to be considered a fat.

The purpose of Wool yolk is to condition and protect sheep’s wool.
This conditioning property is why the substance is now widely used in human cosmetics, skin care, and hair products.

Wool yolk oil is extracted by putting sheep’s wool through a centrifuge machine that separates the oil from other chemicals and debris.
The process is performed after the sheep is sheared so the extraction of Wool yolk causes no harm to sheep.

You may already be using products that contain Wool yolk oil without realizing Wool yolk.
Many medicine cabinet staples including lip balms, lotions, and nipple creams contain the amber-colored substance loved for Wool yolk moisturizing ability.

Wool yolk is a waxy substance derived mainly from the wool of sheep.
The sheep’s sebaceous glands produce this “wool wax” to help shed water and keep the sheep dry.
Wool yolk is extracted by putting the wool through a centrifuge machine that separates the oil from other chemicals and debris. 

Growing Popularity of Wool yolk:
Wool yolk is used in an array of products like pharmaceuticals, leather, textiles, baby and men’s care products, bio-lubricants, and nearly all types of cosmetics marketed to women.
While pharmaceutical-grade Wool yolk is the lion’s share of the market today, the growing demand for natural and organic ingredients in personal care products is driving Wool yolk market growth, which is expected to be worth more than $450 million USD by 2024. 

In beauty products, specifically, Wool yolk gives lipsticks heavy gloss and high-shine.
Formulations like these are about 5-10% Wool yolk by weight.

Wool yolk may also appear in cosmetics as modified versions of Wool yolk oil.
Lanfrax, for instance, is the trade name of a Wool yolk oil compound that has polyethylene glycol attached to Wool yolk to make it more water-soluble. 
Accounting for these modified versions of Wool yolk, Wool yolk and its derivatives may account for approximately 15-25% of the weight of a given lipstick. 

So, though the production of Wool yolk seems innocent enough because the process happens after the sheep are shorn, and seems like Wool yolk should be a natural byproduct of the wool industry, Wool yolk is a major industry of its own.
The only way to sustain the accelerating levels of Wool yolk production is by being inextricably linked to mass-produced wool, which is a slaughter industry with inhumane practices.
Because the Wool yolk industry relies directly on mass-produced wool, Wool yolk also supports cruelty. 

Composition of Wool yolk:
A typical high-purity grade of Wool yolk is composed predominantly of long chain waxy esters (approximately 97% by weight) with the remainder being Wool yolk alcohols, Wool yolk acids and Wool yolk hydrocarbons.
An estimated 8,000 to 20,000 different types of Wool yolk esters are present in Wool yolk, resulting from combinations between the 200 or so different Wool yolk acids and the 100 or so different Wool yolk alcohols identified so far.

Wool yolk’s complex composition of long-chain esters, hydroxyesters, diesters, Wool yolk alcohols, and Wool yolk acids means in addition to its being a valuable product in Wool yolk own right, Wool yolk is also the starting point for the production of a whole spectrum of Wool yolk derivatives, which possess wide-ranging chemical and physical properties.
The main derivatisation routes include hydrolysis, fractional solvent crystallisation, esterification, hydrogenation, alkoxylation and quaternisation.
Wool yolk derivatives obtained from these processes are used widely in both high-value cosmetics and skin treatment products.

Hydrolysis of Wool yolk yields Wool yolk alcohols and Wool yolk acids.
Wool yolk alcohols are a rich source of cholesterol (an important skin lipid) and are powerful water-in-oil emulsifiers; they have been used extensively in skincare products for over 100 years.

Approximately 40% of the acids derived from Wool yolk are alpha-hydroxy acids (AHAs).
The use of AHAs in skin care products has attracted a great deal of attention in recent years.
Details of the AHAs isolated from Wool yolk can be seen in the table below.

Production of Wool yolk:
Crude Wool yolk constitutes about 5–25% of the weight of freshly shorn wool.
The wool from one Merino sheep will produce about 250–300 ml of recoverable wool grease.

Wool yolk is extracted by washing the wool in hot water with a special wool scouring detergent to remove dirt, wool grease (crude Wool yolk), suint (sweat salts), and anything else stuck to the wool.
The wool grease is continuously removed during this washing process by centrifuge separators, which concentrate Wool yolk into a waxlike substance melting at approximately 38 °C (100 °F).

Applications
Wool yolk and its many derivatives are used extensively in both the personal care (e.g., high value cosmetics, facial cosmetics, lip products) and health care sectors such as topical liniments.
Wool yolk is also found in lubricants, rust-preventive coatings, shoe polish, and other commercial products.

Wool yolk is a relatively common allergen and is often misunderstood as a wool allergy.
However, allergy to a Wool yolk-containing product is difficult to pinpoint and often other products containing Wool yolk may be fine for use.

Patch testing can be done if a Wool yolk allergy is suspected.
Wool yolk is frequently used in protective baby skin treatment and for sore nipples from breastfeeding although health authorities do not recommend it, advise against nipple cleaning and rather recommend improving baby positioning and expressing milk by hand.

Wool yolk is used commercially in many industrial products ranging from rustproof coatings to lubricants.
Some sailors use Wool yolk to create slippery surfaces on their propellers and stern gear to which barnacles cannot adhere.

Commercial products (e.g. Lanocote) containing up to 85% Wool yolk are used to prevent corrosion in marine fasteners, especially when two different metals are in contact with each other and saltwater.
The water-repellent properties make Wool yolk valuable in many applications as a lubricant grease where corrosion would otherwise be a problem.

7-Dehydrocholesterol from Wool yolk is used as a raw material for producing vitamin D3 by irradiation with ultraviolet light.
Baseball players often use Wool yolk to soften and break in their baseball gloves (shaving cream with Wool yolk is popularly used for this).

Anhydrous liquid Wool yolk, combined with parabens, has been used in trials as artificial tears to treat dry eye.
Anhydrous Wool yolk is also used as a lubricant for brass instrument tuning slides.

Wool yolk can also be restored to woollen garments to make them water and dirt repellent, such as for cloth diaper covers.
Wool yolk is also used in lip balm products such as Carmex.

For some people, Wool yolk can irritate the lips.
Wool yolk is sometimes used by people on continuous positive airway pressure therapy to reduce irritation with masks, particular nasal pillow masks that can often create sore spots in the nostrils.

Wool yolk is a popular additive to moustache wax, particularly 'extra-firm' varieties.
Wool yolk is used as a primary lubricating component in aerosol-based brass lubricants in the ammunition reloading process.

Mixed warm 1:12 with highly concentrated ethanol (usually 99%), the ethanol acts as a carrier which evaporates quickly after application, leaving a fine film of Wool yolk behind to prevent brass seizing in resizing dies.
Wool yolk, when mixed with ingredients such as neatsfoot oil, beeswax and glycerol, is used in various leather treatments, for example in some saddle soaps and in leather care products.

Products That May Contain Wool yolk:

Cosmetics:
Foundations
Eye makeup
Lipsticks

Hair Care:
Hairspray

Household Products:
Furniture polish
Leather
Paper
Printing inks

Liquids:
Baby oils
Baby ointments
Hand lotion
Moisturizers
Self-tanners
Sunscreen

Benefits of Wool yolk:
Wool yolk is classified as an occlusive moisturizer.
This means Wool yolk works by reducing water loss from the skin, similar to petroleum jelly.

While petroleum can reduce the evaporation of skin's moisture by 98%, Wool yolk reduces it by between 20% and 30%.
However, many people like that Wool yolk isn't as heavy as petroleum jelly, making Wool yolk more pleasant to use.

In skincare products, there's no hard evidence showing Wool yolk is better than synthetic waxes.
If you like using natural products, though, you may prefer Wool yolk over synthetics.

Wool yolk is in a wide variety of over-the-counter (OTC) products.

They include:
Eye creams
Hemorrhoid medication
Lip balm
Lotions and creams for dry skin
Makeup and makeup removers
Medicated shampoos
Mustache wax
Shaving cream
Baby oil
Diaper rash cream

Wool yolk for Breastfeeding and Sore Nipples:
During breastfeeding, your nipples may become sore, dry, and even cracked.
Many healthcare providers recommend Wool yolk creams to ease nipple pain from breastfeeding.

A big benefit is that it's generally considered safe for your baby to ingest small amounts of Wool yolk.
Wool yolk 's recommended that you use it at least ten minutes before you start breastfeeding.
But unlike other products, you don't need to wipe Wool yolk off.

Wool yolk 's also safe to give your baby breastmilk expressed while Wool yolk is on your nipples. (Again, wait about 10 minutes after application before you begin pumping.)

Research into Wool yolk for nipple pain has been mixed.

A 2018 Brazilian study suggested significant improvements in nipple pain and trauma in participants who used Wool yolk compared to those who rubbed in breastmilk (another common remedy for nipple soreness).

However, other research on Wool yolk effectiveness has been lackluster.

A 2014 review of studies concluded that evidence is insufficient that Wool yolk relieves nipple pain.
Research in 2017 reported participants were happier with the results of Wool yolk cream than with other products, but Wool yolk didn't lessen nipple pain or make continued breastfeeding more likely.
A 2021 study said Wool yolk wasn't clear whether Wool yolk (combined with education about breastfeeding) helped prevent nipple pain.

Wool yolk oil is known as an emollient, which means Wool yolk helps soothe dry or dehydrated skin.
A 2017 studyTrusted Source indicated that Wool yolk can reduce water lost through the skin by 20 to 30 percent.
Simply put, Wool yolk is extremely hydrating and has the ability to soften skin to help improve the appearance and the feel of rough, dry, or flaky areas.

Wool yolk ’s Cruelty-free:
If you’re ready to clean up your skincare routine, Wool yolk is a must.
Wool yolk is a by-product of wool washing after shearing, meaning no sheep are harmed in the process.

In fact, if sheep aren’t sheared, their fleece will become solid, too hot and heavy for them so they must be shorn whether we use Wool yolk or not.
That’s why our Wool yolk is cruelty-free and Leaping Bunny Certified.

Wool yolk Provides Dual Benefits:
Wool yolk is unique because it is incredibly hydrating without ever feeling sticky.
Wool yolk has the dual benefit of being both semi-occlusive and semi-permeable, meaning Wool yolk allows your skin to self-hydrate from within while acting as a breathable skin barrier.
These two qualities make Wool yolk an incredibly versatile ingredient that is ideal for hydrating dry, flaky skin.

Wool yolk Offers The Ultimate In Hydration:
Wool yolk can hold up to 400% of its weight in moisture, so you know Wool yolk can quench your skin’s thirst.
Another part of the reason why Wool yolk is an effective moisturizer is that Wool yolk is scientifically proven to mimic lipids in human skin extremely closely.
Your skin will instantly welcome the added hydration!

Wool yolk Can Be Used For More Than Cosmetics:
While we love Wool yolk for lips and can’t get enough of Wool yolk hand cream, this hero ingredient can also be used for more than cosmetics.
Because of Wool yolk similarity to the skin’s own oils, doctors often recommend Wool yolk to help protect burns and mothers can use Wool yolk with nursing infants. 

Standards And Legislation About Wool yolk:
In addition to general purity requirements, Wool yolk must meet official requirements for the permissible levels of pesticide residues.
The Fifth Supplement of the United States Pharmacopoeia XXII published in 1992 was the first to specify limits for 34 named pesticides.

A total limit of 40 ppm (i.e. 40 mg/kg) total pesticides was stipulated for Wool yolk of general use, with no individual limit greater than 10 ppm.
A second monograph also introduced into the US Pharmacopoeia XXII in 1992 was entitled 'Modified Wool yolk'.

Wool yolk conforming to this monograph is intended for use in more exacting applications, for example on open wounds.
In this monograph, the limit of total pesticides was reduced to 3 ppm total pesticides, with no individual limit greater than 1 ppm.

In 2000, the European Pharmacopoeia introduced pesticide residue limits into its Wool yolk monograph.
This requirement, which is generally regarded as the new quality standard, extends the list of pesticides to 40 and imposes even lower concentration limits.

Some very high-purity grades of Wool yolk surpass monograph requirements.
New products obtained using complex purification techniques produce Wool yolk esters in their natural state, removing oxidative and environmental impurities resulting in white, odourless, hypoallergenic Wool yolk.

These ultra-high-purity grades of Wool yolk are ideally suited to the treatment of dermatological disorders such as eczema and on open wounds.

Wool yolk attracted attention owing to a misunderstanding concerning Wool yolk sensitising potential.
A study carried out at New York University Hospital in the early 1950s had shown about 1% of patients with dermatological disorders were allergic to the Wool yolk being used at that time.

By one estimate, this simple misunderstanding of failing to differentiate between the general healthy population and patients with dermatological disorders exaggerates the sensitising potential of Wool yolk by 5,000–6,000 times.

The European Cosmetics Directive, introduced in July 1976, contained a stipulation that cosmetics which contained Wool yolk should be labelled to that effect.
This ruling was challenged immediately, and in the early 1980s, it was overturned and removed from the directive.

Despite only being in force for a short period of time, this ruling did harm both to the Wool yolk industry and to the reputation of Wool yolk in general.
The Cosmetics Directive ruling only applied to the presence of Wool yolk in cosmetic products; Wool yolk did not apply to the many hundreds of its different uses in dermatological products designed for the treatment of compromised skin conditions.
Modern analytical methods have revealed Wool yolk possesses a number of important chemical and physical similarities to human stratum corneum lipids; the lipids which help regulate the rate of water loss across the epidermis and govern the hydration state of the skin.

Cryogenic scanning electron microscopy has shown that Wool yolk, like human stratum corneum lipids, consists of a mass of liquid crystalline material.
Cross-polarised light microscopy has shown the multilamellar vesicles formed by Wool yolk are identical to those formed by human stratum corneum lipids.

The incorporation of bound water into the stratum corneum involves the formation of multilamellar vesicles.

Skin bioengineering studies have shown the durational effect of the emollient (skin smoothing) action produced by Wool yolk is very significant and lasts for many hours.
Wool yolk applied to the skin at 2 mg/cm2 has been shown to reduce roughness by about 35% after one hour and 50% after two hours, with the overall effect lasting for considerably more than eight hours.

Wool yolk is also known to form semiocclusive (breathable) films on the skin.
When applied daily at around 4 mg/cm2 for five consecutive days, the positive moisturising effects of Wool yolk were detectable until 72 hours after final application.

Wool yolk may achieve some of its moisturising effects by forming a secondary moisture reservoir within the skin.
The barrier repair properties of Wool yolk have been reported to be superior to those produced by both petrolatum and glycerol.

In a small clinical study conducted on volunteer subjects with terribly dry (xerotic) hands, Wool yolk was shown to be superior to petrolatum in reducing the signs and symptoms of dryness and scaling, cracks and abrasions, and pain and itch.
In another study, a high purity grade of Wool yolk was found to be significantly superior to petrolatum in assisting the healing of superficial wounds.

Manufacturing Methods of Wool yolk:
Wool yolk is manufacturing by extraction from sheep wool by scouring with dilute alkali, centrifuging, and refining (for the purer grades) via treatment with hot aqueous alkali and then a bleaching agent.

Wool yolk is manufacturing by purifying the fatty matter (suint) obtained from the wool of the sheep.
This natural wool fat contains about 30% of free fatty acids and fatty acid esters of cholesterol and other higher alcohols.

The cholesterol compounds are the important constituents, and to secure these in a purified form, many processes have been devised.
In one of these the crude wool fat is treated with weak alkali and the saponified fats and emulsions are centrifuged to secure the aqueous soap solution, from which, on standing, a layer of partially purified wool fat separates.

Wool yolk is further purified by treating it with calcium chloride and then dehydrated by fusion with unslaked lime.
Wool yolk is finally extracted with acetone, and the solvent subsequently separated by distillation.

Wool yolk is obtained by one of the following methods:
1. Solvent extraction of wool fleece.
2. Scouring of wool with soap or neutral detergent followed by:

a. Centrifugation of the resulting emulsion.
This may introduce small amounts of detergents as impurities in the Wool yolk.
b. breaking of the emulsion with acid, or production of foam (with air) and collection of the froth.

Handling and storage of Wool yolk:

Precautions for safe handling:
Avoid inhalation of vapour or mist.

Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.

Storage class (TRGS 510):
8A: Combustible, corrosive hazardous materials

Stability and reactivity of Wool yolk:

Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:

Strong oxidizing agents:

Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.

Disposal considerations:

Waste treatment methods:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.

Contaminated packaging:
Dispose of as unused product

First aid measures of Wool yolk:

General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area.

If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.

In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.

In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.

If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.

Rinse mouth with water.
Consult a physician.

Firefighting measures of Wool yolk:

Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas

Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.

Accidental release measures of Wool yolk:

Personal precautions, protective equipment and emergency procedures:
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.

Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.

Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.

Exposure controls/personal protection of Wool yolk:

Control parameters:

Components with workplace control parameters:
Contains no substances with occupational exposure limit values.

Exposure controls:

Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.

Personal protective equipment:

Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.

Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product.
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.

Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: Dermatril (KCL 740 / Aldrich Z677272, Size M)

Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: Dermatril (KCL 740 / Aldrich Z677272, Size M)

Wool yolk should not be construed as offering an approval for any specific use scenario.

Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Control of environmental exposure:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.

Identifiers of Wool yolk:
CAS: 8006-54-0
Deprecated CAS: 8040-96-8, 8038-43-5, 114471-15-7, 8038-41-3
European Community (EC) Number: 232-348-6
UNII: 7EV65EAW6H.
DSSTox Substance ID: DTXSID2027678
NCI Thesaurus Code: C94238
RXCUI: 6227
 

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