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/449/386/product-dating-information-mk.pdf
252476
Lactic acid solution
ACS reagent, ≥85%
Synonym(s):
2-Hydroxypropionic acid solution, DL-Lactic acid solution
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About This Item
85.0-90.0% in H2O
Recommended Products
grade
ACS reagent
Quality Level
Assay
85.0-90.0%
concentration
≥85%
85.0-90.0% in H2O
impurities
H2SO4, passes test (darkened)
ign. residue
≤0.02%
refractive index
n20/D 1.4251
density
1.209 g/mL at 25 °C
anion traces
chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%
cation traces
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)
functional group
carboxylic acid
hydroxyl
SMILES string
CC(O)C(O)=O
InChI
1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
InChI key
JVTAAEKCZFNVCJ-UHFFFAOYSA-N
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Application
Other Notes
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1C
Supplementary Hazards
Storage Class Code
8A - Combustible corrosive hazardous materials
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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해당 제품의 농도를 나타내는 80-90%는 질량기준인지 부피 기준인지 알려주시면 감사하겠습니다.
1 answer-
The product concentration is 85.0 to 90.0% and this is on an m/m basis.
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유통기한이 보통 얼마나 될까요? 예전에 구비하고 사용을 오래 안 해서 재구매 해야 할지 검토 중입니다.
1 answer-
This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment. For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
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