Trifluoroacetic acid (TFA) is a synthetic organofluorine compound with the chemical formula CF 3 CO 2 H. It is a haloacetic acid, with all three of the acetyl group's hydrogen atoms replaced by fluorine atoms. It is a colorless liquid with a vinegar -like odor.

2024年10月30日 · TFA was not biodegraded in a semi-continuous activated sludge test even with prolonged incubation (up to 84 days). TFA does not accumulate significantly in lower aquatic life forms such as bacteria, small invertebrates, oligochaete worms and some aquatic plants including Lemna gibba (duckweed).

三氟乙酸 （TFA） 是一种持久性和可移动性物质，在各种环境介质中浓度不断增加，包括雨水、土壤、人体血清、植物、植物性食物和饮用水。 目前，TFA 浓度比其他全氟和多氟烷基物质 （PFAS） 的浓度高几个数量级。 这种积累是由于许多 PFAS 将 TFA 作为转化产物，包括几种氟化气体 （F-gas）、杀虫剂、药品和工业化学品，以及工业生产的 TFA 的直接释放。 由于 TFA 的极度持久性和持续的排放，浓度正在不可逆转地增加。 仍然不太清楚的是，对局部或全球尺 …

2024年12月17日 · Dirge is a Starscream clone, and like the other clones, represents an aspect of the original's personality... in this case, his implacable greed. No altitude is high enough, no amount of fuel is sufficient, and no grab for power will ultimately satisfy him.

结果发现，TFA 浓度从 1960-80 年间的平均 0.06mcg/L 上升至 2000 年至 2020 年代的平均 0.6mcg/L，增长了 10 倍。 摘要指出“大气中某些氟化气体的氧化被认为是陆地环境中 TFA 的主要来源，因此，气体类型的变化和使用量的增加预计会导致过去几十年 TFA 负担增加”。

2024年9月29日 · Starscream clones are a group from the Animated continuity family. Are there no signs of normalcy in these wretches? No cowardice or pomposity, no snideness or smarm, not even basic honest-to-goodness double-dealing two-facedness? A Starscream clone is one of an army of (mostly) physically identical copies of Starscream.

This repository holds TFS 1.5 downgrades. Keep in mind these downgrades are protocol downgrades. What it means? It means that it's not fully featured server. It's a nice base to start working on in desired protocol version. Datapack is not included. If you like Nekiro's work and respect his time, you can consider becoming Github Sponsor.

Breathing Trifluoroacetic Acid can irritate the nose, throat and lungs causing coughing, wheezing and/or shortness of breath. Trifluoroacetic Acid is a colorless liquid with a sharp odor. It is used as a laboratory chemical, solvent and catalyst. Trifluoroacetic Acid is on the Hazardous Substance List because it is cited by DOT.

Trifluoroacetic acid is an important building block in the synthesis of pharmaceuticals, agrochemicals and ceramic compounds. It is a precursor to many fluorinated compounds, and widely used in peptide synthesis and other organic transformations involving deprotection of t …

6 hour art submission (for the official transformers discord) staring my new tfp oc, Stealthwing, at the beach!