| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | |
| O992163 | MACKLIN | 草酸盐标准缓冲溶液(四草酸钾） | pH=1.68(25℃)(CP) | 150元/500ml; | 咨询 |
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| P815367 | MACKLIN | 四草酸钾,二水合物 | 试剂级, 99.0% | 37元/250g; 108元/1kg; 399元/5kg; 760元/10kg; | 咨询 |
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| P0475 | TCI | Potassium Trihydrogen Dioxalate Dihydrate | >99.0%(T) | 145元/25G; 1170元/500G; | 咨询 |
基本信息 | 纯度/分析方法 | >99.0%(T) | | 分子式/分子量 | C4H3KO8・2H2O = 254.19 | | 外观与形状(20℃) | 固体 | | Reaxys-RN | 10220519 | | PubChem物质ID | 87574665 | | Merck Index (14) | 7689 | | MDL编号 | MFCD00036364 |
技术规格 | Appearance | White to Almost white powder to crystal | | Purity(Redox method) | min. 99.0 % |
物性(参考值) | 水溶性 | 可溶 | | 溶解度(极微溶) | 乙醚 | | 溶解性(不溶于) | 苯,乙醇 |
安全信息 | 图形或危害标志 |  | | 信号词 | 危险 | | 危险性说明 | H301 : 吞咽会中毒。
| | 防范说明 | P501 : 将内装物/容器送到批准的废物处理厂处理。
P270 : 使用本产品时不要进食、饮水或吸烟。
P264 : 作业后彻底清洗皮肤。
P301 + P310 + P330 : 如误吞咽：立即呼叫急救中心/医生。漱口。
P405 : 存放处须加锁。
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运输信息 | UN编号 | UN2811 | | 类别 | 6.1 | | 包装类别 | III | | 监管条件代码(*) | |
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| 592188 | J&K | Potassium Tetraoxalate Dihydrate | 98.5% | 80元/25G; 217元/100G; 682元/500G; 1238元/1KG; | 咨询 |
基本信息 | 分子式 | C4H3KO8·2H2O | | 分子量 | 254.19 | | MDL编码 | MFCD00150443 | | Beilstein | 3854419 | | Merck | 14,7689 | | EINECS 编号 | 204-874-6 |
安全信息 | 图形或危害标志 |  | | 提示语 | Warning | | 危险说明 | H302
H312 | | 防范说明 | P280 | | WGK | 1 | | TSCA | 是 |
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| A14933 | Alfa Aesar | Potassium Trihydrogen Dioxalate Dihydrate | 98+% | 817元/250g; 1914元/1000g; 7551元/5000g; | 咨询 |
应用
Potassium trihydrogen dioxalate dihydrat is used in metal polishing determination of pH. And it is also used in photography, marble grinding, and to remove ink stains. 备注
Store away from strong oxidizing agents. Keep container tightly closed. Store in cool, dry conditions in well sealed containers. 基本信息 MDL
MFCD00150443 EINECS
204-874-6 分子式
KH3(C2O4)2?2H2O 分子量
254.19 (218.16anhy) 灵敏度
Ambient temperatures. 形态
Crystalline powder 溶解性
Soluble in water Merck
14,7689 GHS危害和防范说明 GHS符号
Hazard Statements
H302-H312
Harmful if swallowed.Harmful in contact with skin. Precautionary Statements
P280h-P264-P270-P301+P312a-P321-P501a
Wear protective gloves/clothing.Wash thoroughly after handling.Do not eat, drink or smoke when using this product.Do not eat, drink or smoke when using this product.Specific treatment (see label).Dispose of contents/container in accordance with local/regional/national/international regulations. 安全信息 危险类别
21/22
Harmful in contact with skin and if swallowed. 安全等级
24/25
Avoid contact with skin and eyes. 欧盟危险品标志
 TSCA
是 |
| C35211 | Alfa Aesar | Oxalic acid | potassium salt dihydrate, 99%, extra pure | 854元/100g; 3763元/500g; 6944元/1kg; | 咨询 |
基本信息 Ref#
35211 MDL
150443 分子式
C4 H3 K O8 . 2 H2 O 分子量
254.2 |
| 1.01961 | Supelco | Potassium Tetraoxalate Dihydrate | certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67₉ (25°C) Certipur® | 1826.13元/25 G; | 咨询 |
产品说明 一般描述 Certipur® certified secondary standard reference buffers are used to precisely calibrate and monitor pH measurement instruments and buffer solutions. They are quality controlled and qualified in our ISO/IEC 17025 and ISO 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in compliance with DIN 19266, IUPAC, NIST, Ph. Eur and USP. Certipur® reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses. 应用 Potassium tetraoxalate dihydrate [pH (S) = 1.67₉ (25 ℃)] is a certified secondary standard reference material used as a calibration buffer standard for pH instruments or pH electrodes. 特点和优势 - The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing the relevant data for the quality management system.
- The pH value of this Certipur® buffer solution is qualified using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary reference materials [pH (S) = 1.679 (25 ℃)].
- This buffer standard has a guaranteed shelf life of 4 years.
- Potassium tetraoxalate dihydrate buffer is a Certified Reference Material (CRM) offered in neat format. Solution of this standard is prepared in-house following instructions in European Pharmacopoeia (Ph. Eur. 2.2.3).
- Intended for extremely precise calibration, qualification and monitoring of pH instruments and routine assessment of their performance.
分析说明 pH-value (25 °C): 1.674 - 1.683 法律信息 CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany 基本信息 | 经验(实验)分子式 | C4H3KO8 · 2H2O | | 分子量 | 254.19 | | MDL编号 | MFCD00150443 | | EC索引号 | 204-874-6 |
产品性质 | 质量水平 | 300 | | 等级 | certified reference material | | agency | complies with DIN 19266 | | 产品线 | Certipur® | | pH值(酸碱度) | 1.7 (25 ℃, 12.6 g/L in H2O) | | 溶解性 | 25 g/L | | 密度 | 1.84 g/cm3 at 20 ℃ | | 堆积密度 | 860 kg/m3 | | application(s) | environmental
food and beverages
general analytical
industrial qc
pharmaceutical | | 格式 | neat | | 储存温度 | 15-25℃ | | InChI | 1S/2C2H2O4.K/c2*3-1(4)2(5)6;/h2*(H,3,4)(H,5,6);/q;;+1/p-1 | | InChI key | GANDVAJEIJXBQJ-UHFFFAOYSA-M |
安全信息 | 象形图 | | | 警示用语： | Warning | | 危险声明 | H302 + H312 - H319 | | 预防措施声明 | P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 | | 危险分类 | Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 | | 储存分类代码 | 11 - Combustible Solids | | WGK | WGK 1 |
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| NIST189C | | Potassium Tetraoxalate Dihydrate | NIST® SRM® 189c, pH standard | 10127.7元/65 G; | 咨询 |
产品说明 一般描述 SRM 189C_cert SRM 189C _SDS 法律信息 NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology 基本信息 | 线性分子式 | KH3(C2O4)2 · 2H2O | | 分子量 | 254.19 | | Beilstein | 3854419 | | MDL编号 | MFCD00150443 | | PubChem化学物质编号 | 329818722 | | NACRES | NA.24 |
产品性质 | 质量水平 | 100 | | 等级 | certified reference material | | 形式 | crystals | | 包装 | pkg of 65 g | | manufacturer/tradename | NIST® | | application(s) | pharmaceutical (small molecule) | | SMILES string | O.O.[K+].OC(=O)C(O)=O.OC(=O)C([O-])=O | | InChI | 1S/2C2H2O4.K.2H2O/c2*3-1(4)2(5)6;;;/h2*(H,3,4)(H,5,6);;2*1H2/q;;+1;;/p-1 | | InChI key | KPFHSTZUXXJAES-UHFFFAOYSA-M |
安全信息 | 象形图 | | | 警示用语： | Warning | | 危险声明 | H302 + H312 - H319 | | 预防措施声明 | P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 | | 危险分类 | Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 | | 储存分类代码 | 11 - Combustible Solids | | WGK | WGK 1 |
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