Enhanced TDS
Identification & Functionality
- Chemical Family
- Cleaning Ingredients Functions
- Technologies
- Product Families
- Chemical Character
- Dehydol® LT 7 is a nonionic surfactant. It is an alkyl polyethylene glycol ether made from a C12-/C18, alcohol and ethylene oxide.
- It conforms to the following formula: RO(CH2CH2O)2H
- R = C12 to C18 Alkyl
- x = 7
- The numeric code in the product name indicates in general the degree of ethoxilation.
- Producer Product Number
- 30528454
Features & Benefits
Applications & Uses
- Markets
- Applications
- Home Care Applications
- I&I Cleaning Applications
Properties
- Physical Form
- Solubility & Viscosity Data
Details on the solubility of Dehydol® LT 7 in various solvents are given in the table below.
Solubility of the Dehydol® LT 7 (10% at 25°C) Distilled water clear solution Potable water (2.7 mmol Ca?*-lons/1) clear solution Caustic msoda (5%) clear solution Hydrochloric acid (5%) clear solution Salt solution (5%) clear solution Solvent naphtha forms an opaque soluble, homogeneous emulsion Ethanol, Isopropanol clear solution Aromatic hydrocarbons clear solution Viscocity: The relationship between viscosity and temperature is always an important point to consider when Dehydol® LT 7 is stored or shipped. This is shown in the following table (mPa-s, Brookfield LVT):
Temperature (°C) 0 solid 10 >105 20 >105 23 500 30 100 40 40 50 25 60 <20 We would recommend the preparation of 10 - 25% stock solutions of Dehydol® LT 7 if it is to be used in the form of very dilute solutions, or if it is to be added to other solutions. This makes it very much easier to dilute it later on. Dehydol* LT 7 can form fairly stiff gels at certain concentrations when water is added. The figures below were measured using a Brookfield-Viscosimeter at 23°C and 60 rom
The viscosity of Dehydol® LT 7 at 23°C as a function of concentration in water (all values in mPa-s)Water content (%) Viscosity (mPa-s) 0 500 10 1.50 20 30000 30 50000 40 >105 50 >105 60 >105 70 800 80 40 90 <20 The numbers reported have to be regarded as maximum values; the values measured immediately after mixing will be lower than the numbers reported.
- Note
- * Cloud point EN 1890:
- Method A: 1 g of surfactant + 100 g of dist. Water
- Method B: 1 g of surfactant + 100 g of NaCI solution (c = 50 g/L)
- Method C: 1 g of surfactant + 100 g of NaCI solution (c = 100 g/L)
- Method D: 5 g of surfactant + 45 g of butyldiglycol solution (c = 250 g/L)
- Method E: 5 g of surfactant + 25 g of butyldiglycol solution (c = 250 g/L)
- ** The pH value of Dehydo® LT 7 can decrease during storage, but this does not have any effect on its performance.
- *** Applying Harkins-Jordan correction.
- * Cloud point EN 1890:
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Safety & Health
- Safety Conditions
Detailed information on the product described in this leaflet can be found in our relevant Health and Safety Information (Material Safety Data Sheet) available via BASF's WorldAccount: https://worldaccount.basf.com (registered access). We are not aware of any ill effect that can result from using Dehydol® LT 7 for the purpose for which it is intended and from processing it in accordance with current practices. According to the experience that we have gained over many years and other information at our disposal, Dehydo!® LT 7 does not exert harmful effects on health, provided it is used properly, due attention is given to the precautions necessary for handling chemicals, and the information and advice given in our Safety Data Sheets are observed.
Packaging & Availability
- Country Availability
- Packaging Type
- Packaging Information
- 180KG Steel drums
- 900KG Composite IBC
- Bulk
Storage & Handling
- Storage Condition
Handling Only Packaged Goods
a) Dehydol® LT 7 should be stored indoors in a dry place. Storage rooms must not be overheated (see flash point).
b) Dehydol*® LT 7 is hygroscopic due to its good solubility in water, with the result that it may absorb moisture very quickly. Drums must be resealed each time they are opened.
c) The storage temperature should not be allowed to fall substantially below 20°C. The congealing point of Dehydol® LT 7also needs to be taken into account.
d) Dehydol® LT 7 is a cloudy liquid and tends to form sediment, it becomes clear liquid at 40°C.
e) Liquid that has solidified or that shows signs of sedimentation should be heated to 50 - 70°C and homogenized before it is processed. Please mix sufficiently prior to use.
f) Drums or IBCs that have solidified or that have begun to precipitate should be reconstituted by gentle heating, preferably in a heating cabinet. The temperature must not be allowed to exceed 70°C. Please mix sufficiently prior to use. This also applies if drums are heated by external electrical elements. Internal electrical elements should not be used because of the localized anomalies in temperature that they cause.
g) Please refer to the latest Safety Data Sheet for detailed information on product safety.
Handling Only Bulk Goods
a) The storage temperature for bulk product must be between min. +30°C and max. +70°C. Storage temperatures above 70°C may cause an increase of color number. b) Dehydol® LT 7 is hygroscopic due to its good solubility in water, with the result that it may absorb moisture very quickly.
c) Dehydol® LT 7 must be blanketed with nitrogen if it is stored in heated tanks (at 50 - 60°C) to prevent it from encountering air contact. Constant, gentle stirring helps to prevent it being discolored as a result of prolonged contact with electrical elements or external heating coils.
d) Dehydol® LT 7 is a cloudy liquid and tends to form sediment, it becomes clear liguid at 40°C.
e) Liquid that has solidified or that shows signs of sedimentation should be heated to 50 - 70°C and homogenized before it is processed. Please mix sufficiently prior to use.
f) Please refer to the latest Safety Data Sheet for detailed information on product safety.
Materials:
The following materials can be used for tanks and drums:
a) Stainless steel 1.4541 - AISI 321 (6 CrNITi 18-10)
b) Stainless steel 1.4571 - AISI 316 Ti (X6 CrNiMoTi 17-12-2)
c) Stainless steel 1.4306 - AISI 304 L (X2 CrNi 19-11)
d) HDPE - high density polyethylene
e) LDPE - low density polyethyleneShelf Life: Provided it is stored properly and drums are kept tightly sealed, Dehydol® LT 7 has a shelf life of at least 24 months in its original packaging.