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
推薦產品
等級
HPLC Plus
for residue analysis
蒸汽密度
3.5 (vs air)
蒸汽壓力
40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)
化驗
≥98.5% (GC)
99%
形狀
liquid
自燃溫度
433 °F
expl. lim.
7 %
環保替代產品特色
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
技術
HPLC: suitable
gas chromatography (GC): suitable
雜質
≤0.0001% non-volatiles
≤0.01% water (Karl Fischer)
≤1.0 ppb Fluorescence (quinine) at 365 nm
鹵化殘基
≤2 μg/L (as heptachlor epoxide)
折射率
n20/D 1.3850-1.3890
n20/D 1.387 (lit.)
bp
98 °C (lit.)
mp
−91 °C (lit.)
溶解度
acetone: miscible(lit.)
carbon tetrachloride: soluble(lit.)
ethanol: very soluble(lit.)
water: insoluble(lit.)
密度
0.684 g/mL at 25 °C (lit.)
&lambda ;
H2O reference
紫外吸收
λ: 200 nm Amax: ≤1.0
λ: 225 nm Amax: ≤0.10
λ: 250 nm Amax: ≤0.01
λ: 300-400 nm Amax: ≤0.005
適合性
corresponds for IR spectroscopy
suitable for residue analysis
應用
food and beverages
環保替代類別
SMILES 字串
CCCCCCC
InChI
1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
InChI 密鑰
IMNFDUFMRHMDMM-UHFFFAOYSA-N
尋找類似的產品? 前往 產品比較指南
一般說明
庚烷(n-Heptane)是内燃机燃料中辛烷等级评定的主要参考燃料(PRF)。据报道,其十六烷值为56。其在流动反应器、激波管和快速压缩机中氧化的机制和动力学研究已被报道。[1]研究了其在不同温度和压力条件下的热分解。[2]研究了在氧化镁负载型钒催化剂存在下的氧化脱氢反应。[3]据报道,n-庚烷的Hβ沸石(MoP/Hβ)催化加氢异构化上负载的磷化钼通过掺杂再生金属而得到增强(Cr、Ni或Ce)。[4]
應用
分光光度法。
环境测试。
特點和優勢
包裝
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!
其他說明
法律資訊
訊號詞
Danger
危險分類
Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
標靶器官
Central nervous system
儲存類別代碼
3 - Flammable liquids
水污染物質分類(WGK)
WGK 2
閃點(°F)
24.8 °F - closed cup
閃點(°C)
-4 °C - closed cup
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相關內容
Why should you have to choose between solvents that are ecological and those that are reliable? Enjoy both at once with our biorenewable and greener solutions. Cyrene™ solvent is a new dipolar aprotic alternative to common REACH restricted solvents, such as N methyl-2-pyrrolidone (NMP) and Dimethylformamide (DMF).
為什麼要在生態溶劑和可靠溶劑之間做出選擇?使用我們的生物可再生綠色解決方案,即可同時享受兩者。Cyrene™ 溶劑是一種全新的雙極性非凍態溶劑,可取代一般受 REACH 限制的溶劑,例如 N 甲基-2-吡咯烷酮 (NMP) 和二甲基甲酰胺 (DMF)。
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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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