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
5.43828
ortho-Phosphoric acid
85%, for HPLC LiChropur™
Sustainability features
Synonym(s):
Phosphoric acid, o-Phosphoric acid, Orthophosphoric acid, Orthophosphoric acid
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 mL | Estimated to ship onOctober 05, 2026 | $161.00 |
250 mL | Estimated to ship onOctober 05, 2026 | $306.00 |
About This Item
Product Name
ortho-Phosphoric acid 85%, for HPLC LiChropur™
vapor density
3.4 (vs air)
Quality Segment
vapor pressure
2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)
product line
LiChropur™
form
liquid
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Sustainability features
concentration
85%
technique(s)
HPLC: suitable
pH
<0.5 (20 °C, 100 g/L in H2O)
kinematic viscosity
30.5 cSt(20 °C)
bp
158 °C (lit.)
mp
~40 °C (lit.)
solubility
water: soluble at 20 °C
density
1.685 g/mL at 25 °C (lit.)
storage temp.
no temp limit
SMILES string
OP(O)(O)=O
InChI
1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key
NBIIXXVUZAFLBC-UHFFFAOYSA-N
General description
Other Notes
Legal Information
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
Storage Class
8B - Non-combustible corrosive hazardous materials
WGK
WGK 1
Flash Point (°F)
does not flash
Flash Point (°C)
does not flash
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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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