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
93350
Trizma ® 碱
99.7% (T), puriss. p.a.
别名:
2-氨基-2-(羟甲基)-1,3-丙二醇, THAM, Tris 碱, 三羟甲基氨基甲烷, 氨基丁三醇
关于此项目
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描述
aminopeptidase substrate
等級
puriss. p.a.
化驗
99.7% (T)
形狀
crystalline
燃燒殘留物
≤0.01% (as SO4)
pH值
10.5-11.5 (25 °C, 10% in H2O)
有用的pH值範圍
7-9
pKa (25 °C)
8.1
bp
219-220 °C/10 mmHg (lit.)
mp
167-172 °C (lit.)
168-172 °C
溶解度
water: soluble (678 g/l at 20 °C)
負離子痕跡
chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤5 mg/kg
正離子痕跡
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
&lambda ；
10 % in H2O
紫外吸收
λ: 230 nm Amax: ≤0.6
λ: 260 nm Amax: ≤0.05
λ: 280 nm Amax: ≤0.04
λ: 430 nm Amax: ≤0.01
SMILES 字串
NC(CO)(CO)CO
InChI
1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChI 密鑰
LENZDBCJOHFCAS-UHFFFAOYSA-N
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此商品 | RDD008 | T4661 | T6066 |
|---|---|---|---|
| grade puriss. p.a. | grade - | grade - | grade - |
| assay ≥99.7% (T) | assay ≥99.9% | assay ≥99.9% (titration) | assay ≥99.9% (titration) |
| Quality Level 200 | Quality Level 100 | Quality Level 400 | Quality Level 400 |
| form crystalline | form powder | form crystalline | form crystalline powder |
| pH 10.5-11.5 (25 °C, 10% in H2O) | pH 10.5-12, 7-9 | pH 10.0-11.5 | pH 10.0-11.5 |
| solubility water: soluble (678 g/l at 20 °C) | solubility water: soluble (Water < 0.2%) | solubility water: soluble (400 g plus 600 mL of water) | solubility water: soluble (666 mg/ml, yielding a clear colorless solution) |
一般說明
應用
其他說明
对于精确的应用，使用经过精心校准的 pH 计和玻璃/甘汞组合电极。
法律資訊
相關產品
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
dust mask type N95 (US), Eyeshields, Gloves
相关内容
Trizma Base Specification Comparison
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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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