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88431

Supelco

磷酸二氢铵

analytical standard, for nitrogen determination according to Kjeldahl method, ≥99.5%

同義詞:

prim -磷酸铵, -磷酸铵, 磷酸二氢铵

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About This Item

線性公式:
NH4H2PO4
CAS號碼:
分子量::
115.03
EC號碼:
MDL號碼:
分類程式碼代碼:
85151701
PubChem物質ID:
NACRES:
NA.24

等級

analytical standard

品質等級

描述

traceable to NIST SRM 194

化驗

≥99.5% (T)
≥99.5%

儲存期限

limited shelf life, expiry date on the label

技術

HPLC: suitable
gas chromatography (GC): suitable
titration: suitable

雜質

12.18%±0.10% total Kjeldahl nitrogen

損耗

≤0.2% loss on drying

pH值

3.8-4.4 (25 °C, 50 mg/mL in H2O)

mp

190 °C (dec.) (lit.)

溶解度

H2O: soluble, clear, colorless

應用

food and beverages

格式

neat

SMILES 字串

N.OP(O)(O)=O

InChI

1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)

InChI 密鑰

LFVGISIMTYGQHF-UHFFFAOYSA-N

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相關類別

一般說明

磷酸二氢铵是在严格的条件下产生的分析标准,并以尽可能高的精度测量。

應用

它是凯氏法测定氮的标准品。

特點和優勢

  • 可整洁存储于安全玻璃瓶内,打开前确保整个保质期的稳定性。
  • 提供准确的滴度测定
  • 随附分析证书(CoA)

注意

室温储存。我们建议首次使用后用干燥的氩气或氮气吹扫,进行除湿。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析證明 (COA)

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