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
RDD007
磷酸钠 一元
anhydrous, free-flowing, Redi-Dri™, ≥99.0%
别名:
正磷酸二氢钠, 磷酸一钠, 磷酸二氢钠
跳至
等級
anhydrous
產品線
Redi-Dri™
化驗
≥99.0%
形狀
powder
品質
free-flowing
pH值
4.0-4.5 (25 °C, 50 g/L in water)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
應用
PFAS testing
SMILES 字串
[Na+].OP(O)([O-])=O
InChI
1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI 密鑰
AJPJDKMHJJGVTQ-UHFFFAOYSA-M
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相关类别
1 of 4
此商品 | S3139 | 71496 | S0751 |
|---|---|---|---|
| assay ≥99.0% | assay ≥98% | assay ≥99.0% (T) | assay ≥99.0% |
| grade anhydrous | grade anhydrous, for molecular biology | grade anhydrous, purum p.a. | grade - |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| product line Redi-Dri™ | product line BioReagent | product line - | product line ReagentPlus® |
| form powder | form solid | form crystals | form powder or crystals |
| pH 4.0-4.5 (25 °C, 50 g/L in water) | pH 4.0-4.5 (25 °C, 50 g/L in water) | pH 4.0-4.5 (25 °C, 50 mg/mL in H2O) | pH 4.0-4.5 (25 °C, 50 g/L in water) |
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
商品
Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
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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?
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
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What is the particle size of RDD007? The website states that it is a powder and that it is free flowing.
1 answer-
The exact particle size of RDD007 is not available. The description of it being a powder and free-flowing indicates that the powder is allowed to pass through a mesh to remove large solids, and only the portion that flows through the mesh screens is utilized. However, the specific mesh screens used are not documented.
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