少妇被猛男粗大的猛进出,亚洲 欧美 动漫 少妇 自拍,日韩免费视频,青春草在线视频免费观看

訂購(gòu)電話:4001650900

Strontium acetate

Cas:
543-94-2
Molecular Structure:
MDL:
--MFCD00036392
Molecular Formula:
C4H6O4Sr·1/2H2O
Molecular Weight:
214.71
Alias:
醋酸鍶
Product order:
Name Specifications Packing Price Delivery
Strontium acetate CP 100g RMB 66 Consulting service
Strontium acetate AR 100g RMB 71.5 Consulting service
Character:
白色結(jié)晶性粉末。有吸濕性。150℃失去結(jié)晶水,灼燒后轉(zhuǎn)化成碳酸鍶。溶于水,微溶于醇,水溶液對(duì)石蕊呈中性。最小致死量(大鼠,靜脈)123mg/kg。
Quality Standard:
   
   項(xiàng)目Item                          分析純      化學(xué)純
                                              (AR)         (CP)
含量(C4H6O4Sr·1/2H2O)Assay,%            99.0~ 100.5   98.0~101.0
游離酸(以CH3COOH計(jì))Free acids,%             ≤ 0.06         0.06
游離堿Free alkali                              合格         合格
氯化物(Cl)Chloride,%                        ≤ 0.01         0.01
硝酸鹽(NO3)Nitrate,%                        ≤ 0.01         0.01
堿金屬鹽類Akali metals salts,%              ≤ 0.05         0.3
鋇(Ba)Barium,%                              ≤ 0.02         0.05
鈣(Ca)Calcium,%                             ≤ 0.05         0.3
鐵(Fe)Iron,%                                ≤ 0.0005       0.001
重金屬(以Pb計(jì))Heavy metals,%                ≤ 0.001        0.001    
Storage:
密封保存。
用途  二氧化碳的顯微結(jié)晶測(cè)定,點(diǎn)滴分析測(cè)定碳酸鹽,環(huán)己六醇試驗(yàn),用作化學(xué)試劑。
上海紫一試劑廠   ? 2025 All Rights Reserved      備案號(hào):滬ICP備19037119號(hào)-1     
網(wǎng)站地圖:
試劑CAS試劑分類試劑產(chǎn)品實(shí)驗(yàn)儀器耗材分類實(shí)驗(yàn)儀器耗材新聞資訊
   滬公網(wǎng)安備 31012002003055號(hào)