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10294-56-1
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???(??):
???????(60%INWATER);???????(60%INWATER)(PHOSPHOROUSACID(60%INWATER));?????? ?
???:
Orthophosphorus acid
???(??):
Phosphorous acid 50% aqueous solution;Phosphorou acid;Orthophosphorus acid;Orthophosphorus acid ISO 9001：2015 REACH
CBNumber:
CB12131082
???:
H3O3P
??? ??:
82
MOL ??:
10294-56-1.mol

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?? ?? (pKa)
2.22±0.10(Predicted)
CAS ??????
10294-56-1
NIST
H3PO3(10294-56-1)
EPA
Phosphorous acid (10294-56-1)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn,C
?? ???? ?? 22-35
????? 1/2-26-36/37/39-45
????(UN No.) UN 2834
???? ?? KE-28696
????(GHS): GHS hazard pictogramsGHS hazard pictograms
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H314 ??? ?? ??? ?? ??? ??? ????? ?? ????? ?? 1A, B, C ?? GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
??????:
P260 ??·?·??·???·??·...·????? ???? ???.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P270 ? ??? ??? ??? ???, ???? ???? ???.
P280 ????/???/???/?????? ?????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P301+P330+P331 ???? ?? ?????. ??? ?? ?? ???.
P303+P361+P353 ??(?? ????)? ??? ??? ?? ??? ??? ????? ??? ?? ????/?????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P310 ?? ????(??)? ??? ????. ???? ?? ????(??)? ??? ????.
P321 (…) ??? ???.
P330 ?? ?????.
P363 ?? ??? ??? ??? ?????.
P405 ???? ?????.
P501 ...? ??? / ??? ?? ???.
NFPA 704
0
3 1

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Phosphorous acid is a reducer in chemical reactions and a raw material in the making of phosphorous acid salts. A plant defoliant.

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A white crystalline solid. It is a monobasic acid forming the anion H2PO2- in water. The sodium salt, and hence the acid, can be prepared by heating yellow phosphorus with sodium hydroxide solution. The free acid and its salts are powerful reducing agents.

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NERIDRONATE SODIUM HYDRATE Risedronic acid N,N-?????????

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