If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
EM3234
Water
Deionized Distilled, ASTM Type II
Synonym(s):
Water
About This Item
Skip To
Product Name
Water, Deionized Distilled, ASTM Type II, Distilled, ASTM Type II
InChI key
XLYOFNOQVPJJNP-UHFFFAOYSA-N
InChI
1S/H2O/h1H2
SMILES string
O
vapor pressure
23 hPa ( 20 °C)
description
TOC <= 50g/L (at the time of manufacture)
form
liquid
shelf life
18 mo. (from manufacture date)
dilution
(for analytical testing)
impurities
≤0.01 ppm Heavy metals (as Pb)
≤0.4 ppm Chloride
≤0.4 ppm Nitrate
≤1.0 ppm Phosphate
≤1.0 ppm Sulfate
≤20 ppm Total solids
≤3 ppb Silica (SiO2)
≤5 ppb Chloride (Cl)
color
APHA: ≤10
refractive index
n20/D 1.34 (lit.)
conductivity
≤1 S/cm at 25 °C
bp
100 °C (lit.)
mp
0 °C (lit.)
density
1.000 g/mL at 3.98 °C (lit.)
anion traces
chloride (Cl-): ≤5 ppb
cation traces
Fe: ≤0.3 ppm
Na: ≤5 ppb
shipped in
ambient
storage temp.
no temp limit
Quality Level
Looking for similar products? Visit Product Comparison Guide
1 of 4
This Item | 6442 | 693520 | 8.48333 |
|---|---|---|---|
| Quality Level 200 | Quality Level - | Quality Level 100 | Quality Level 200 |
| form liquid | form liquid | form liquid | form (Colorless Liquid) |
| refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) |
| vapor pressure 23 hPa ( 20 °C) | vapor pressure 23 hPa ( 20 °C) | vapor pressure - | vapor pressure 23 hPa ( 20 °C) |
| impurities ≤0.01 ppm Heavy metals (as Pb), ≤0.4 ppm Nitrate, ≤1.0 ppm Sulfate, ≤3 ppb Silica (SiO2), ≤0.4 ppm Chloride, ≤20 ppm Total solids, ≤1.0 ppm Phosphate, ≤5 ppb Chloride (Cl) | impurities - | impurities - | impurities - |
| cation traces Fe: ≤0.3 ppm, Na: ≤5 ppb | cation traces - | cation traces - | cation traces - |
Analysis Note
Chloride (Cl): 5ppb max
Color (APHA): 10 max
Conductivity at 25°C: 1.0S/cm max
Form: Clear liquid
Heavy metals (as Pb): 0.01ppm max
Ion chromatography, Chloride: 0.4ppm max
Ion chromatography, Nitrate: 0.4ppm max
Ion chromatography, Phosphate: 1.0ppm max
Ion chromatography, Sulfate: 1.0ppm max
Iron (Fe): 0.3ppm max
Microbial limits (at time of manufacture): 10CFU/mL max
Resistivity at 25°C: 1.0MOhm❞cm min
Silica (SiO2): 3ppb max
Sodium (Na): 5ppb max
Substances reducing permanganate: To pass test
Total organic carbon (at time of manufacture): 50g/L max
Total solids: 20ppm max
Application
General description
Exceptional Quality Standards: These solvents meet or exceed ACS specifications, providing assurance of high quality that is crucial for accurate testing and analysis in quality control.
Consistent Reproducibility: Designed for precision, the solvents ensure that results can be reliably reproduced, which is vital for maintaining compliance and integrity in quality control processes.
Versatile Applications: Suitable for a variety of QC tasks, including analytical testing, method validation, and testing USP/NF monographs, these solvents support a comprehensive approach to quality assurance in laboratory settings.
Storage Class
10 - Combustible liquids
wgk
nwg
flash_point_f
No data available
flash_point_c
No data available
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
-
-
Does this water meet the ASTM Intl. specification for Type 2 subtype A
1 answer-
This product meets the ASTM International specifications for Type II. The specific subtype is not determined.
Helpful?
-
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service