Questions about substances related to hydrazine
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In the “Catalog of Hazardous Chemicals”: 1225 is hydrazine hydrate, while 2012 is hydrated hydrazine. It is stated that these are different substances; I don’t understand this – aren’t they the same thing? The molecular weight of N2H4·H2O is 50, while the molecular weight of N2H4 (hydrazine) is 32; it contains 64% hydrazine. What does this value of >64% indicate? Several molecular hydrazines combined with 1 water molecule?
Can you calculate it by yourself? Knowledge of middle school chemistry is sufficient. The molecular weight of water is 18, and the molecular weight of hydrazine is 32; adding these together gives 50, which is exactly the apparent molecular weight of hydrazine hydrate. Hydrazine hydrate contains 64% hydrazine as its main component; isn’t it formed by one molecule of water and one molecule of hydrazine?
The question is why it says hydrazine content ≤64%, when it should be 64% hydrazine； Such **level files should not be ambiguous; there must be some situation that hasn’t been taken into account
A question like yours cannot be answered with my area of expertise; you should ask the people or organizations responsible for formulating those standards or regulations.
A 100% hydrazine hydrate solution contains 64% hydrazine, while an 80% hydrazine hydrate solution contains 51.2% hydrazine; these two are the main types of hydrazine hydrate products. One hydrazine molecule combines with one water molecule to form hydrazine hydrate
A 100% hydrazine hydrate solution contains 64% hydrazine, while an 80% hydrazine hydrate solution contains 51.2% hydrazine; these two are the main types of hydrazine hydrate products. One hydrazine molecule combines with one water molecule to form hydrazine hydrate
An aqueous hydrazine solution is a mixture, while hydrazine hydrate is a pure substance; that’s all there is to it. Of course, aqueous hydrazine solutions with a hydrazine content greater than 64% are not mentioned here, but it seems a bit forced to classify them as anhydrous hydrazine. Of course, the latter point is irrelevant to the main discussion