- 主题:[Help]Does anybody kown what is this mean?
Nitric acid R
Potassium dichromate solution R
Ferric Chloride Solution R1
what 's the meaning of "R" and "R1"?
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FROM 122.100.197.*
不懂
【 在 ztyy (xph) 的大作中提到: 】
: Nitric acid R
: Potassium dichromate solution R
: Ferric Chloride Solution R1
: ...................
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FROM 219.234.148.*
在什么上面看到的？
【 在 ztyy (xph) 的大作中提到: 】
: Nitric acid R
: Potassium dichromate solution R
: Ferric Chloride Solution R1
: ...................
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FROM 211.99.222.55
British Pharmacopoeia, some tests including the above reagents
But I wanna to kown what the "R" and "R1" mean. There's also "R2", I am comfused by these kinds of expression.
【 在 rychushi (13260105004 zj15#) 的大作中提到: 】
: 在什么上面看到的？
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FROM 125.31.47.*
may
R=Risk
R1 means "explosive when dry"
【 在 ztyy (xph) 的大作中提到: 】
: British Pharmacopoeia, some tests including the above reagents
: But I wanna to kown what the "R" and "R1" mean. There's also "R2", I am comfused by these kinds of expression.
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FROM 210.72.154.*
en
【 在 KUKUMALULANN (一只吃青草的老虎) 的大作中提到: 】
: may
: R=Risk
: R1 means "explosive when dry"
: ...................
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FROM 219.234.148.*