POTASSIUM HYDROGEN PHTHALATE

POTASSIUM HYDROGEN PHTHALATE - Names and Identifiers

Name	Potassium hydrogen phthalate
Synonyms	SODIUM AMYL XANTHTATE Potassium biphthalete Potassium biphthalate pot. hydrogen phthalate Potassium acid phthalate potassium 2-carboxybenzoate Potassium hydrogen phthalate Potassium phthalate monobasic POTASSIUMBIPHTHALATE,ULTRAPURE Phthalic acid monopotassium salt POTASSIUMBIPHTHALATE,BIOTECHGRADE POTASSIUM ACID PHTHALATE BIO-REFINED POTASSIUM ACID PHTHALATE BUFFER GRADE POTASSIUMBIPHTHALATE,CRYSTAL,REAGENTSPECIAL,ACS potassium hydrogen phthalate, primary standard, acs Potassium hydrogen phthalate, reagent ACS, acidimetric standard
CAS	877-24-7
EINECS	212-889-4
InChI	InChI=1/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
InChIKey	IWZKICVEHNUQTL-UHFFFAOYSA-M

POTASSIUM HYDROGEN PHTHALATE - Physico-chemical Properties

Molecular Formula	C8H5KO4
Molar Mass	204.22
Density	1.006g/mLat 20°C
Melting Point	295-300 °C (dec.) (lit.)
Boling Point	98.5-99.5 ;°C/740 ;mmHg(lit .)
Flash Point	196.7°C
Water Solubility	80 G/L (20 ºC)
Solubility	Soluble in water, slightly soluble in alcohol.
Vapor Presure	2.14E-06mmHg at 25°C
Appearance	White Crystals
Color	White
Odor	Odorless
Merck	14,7612
BRN	3637128
PH	4.00-4.02 (25.0℃±0.2℃, 0.05M)
Storage Condition	Store at +5°C to +30°C.
Stability	Stable. Incompatible with strong oxidizing agents.
Sensitive	Easily absorbing moisture
MDL	MFCD00013070
Physical and Chemical Properties	White crystals. The relative density was 1.636. Soluble in 12 parts of cold water, 3 parts of boiling water; Slightly soluble in ethanol. pH = 4.005 of the M aqueous solution at 25 °c. Decomposition at 295-300 °c.
Use	Used as a pyrotechnic sound agent

POTASSIUM HYDROGEN PHTHALATE - Risk and Safety

Risk Codes	R36/38 - Irritating to eyes and skin. R36/37/38 - Irritating to eyes, respiratory system and skin. R34 - Causes burns R61 - May cause harm to the unborn child R60 - May impair fertility
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S53 - Avoid exposure - obtain special instructions before use.
UN IDs	UN 1789 8/PG 3
WGK Germany	1
RTECS	CZ4326000
FLUKA BRAND F CODES	34
TSCA	Yes
HS Code	29173990
Toxicity	LD50 orally in Rabbit: > 3200 mg/kg

POTASSIUM HYDROGEN PHTHALATE - Upstream Downstream Industry

Raw Materials

Potassium hydroxide
Potassium hydroxide
Phthalic anhydride

POTASSIUM HYDROGEN PHTHALATE - Reference

Reference

1. [IF=4.821] Yixin Nie et al."Nitrogen-rich quantum dots-based fluorescence molecularly imprinted paper strip for p-nitroaniline detection."Microchem J. 2019 Jul;148:162

POTASSIUM HYDROGEN PHTHALATE - Reference Information

Open Data Unverified Data

pH range of acid-base indicator discoloration	3.8 - 4.0 (5% aq. sol.)
LogP	-2.73
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Use	is used as a buffer for pH measurement and an analytical reference substance. use as analytical reagent and buffer use as pyrotechnic sound analytical reagent. The base was calibrated against the base. A buffer solution was prepared. Analytical reagents. The base was calibrated and a buffer solution was prepared.
production method	660g caustic potash (85%) was dissolved in 1L of water. 1480G of phthalic anhydride was added in portions with heating and stirring, and the reaction was heated for 0.5h and filtered. The filtrate was concentrated to saturation, allowed to cool to room temperature, and the crystals were filtered off with suction and dried to obtain a finished product.

Last Update：2024-04-09 19:43:38

POTASSIUM HYDROGEN PHTHALATE - Nature

Open Data Verified Data

colorless orthorhombic crystal or white crystalline powder. Dissolve in about 12 parts of cold water, three parts of boiling water, the solution is acidic. Slightly soluble in ethanol.

Last Update：2024-01-02 23:10:35

POTASSIUM HYDROGEN PHTHALATE - Preparation Method

Open Data Verified Data

caustic potash was dissolved in water and heated. Phthalic anhydride was added in several portions and stirred continuously, and the reaction was completed by heating. After filtration, the filtrate was evaporated to heat saturation and allowed to cool to room temperature. The crystals were filtered off with suction and dried to obtain potassium hydrogen phthalate.

Last Update：2022-01-01 09:25:36

POTASSIUM HYDROGEN PHTHALATE - Introduction

Stable in air

Last Update：2022-10-16 17:29:32

POTASSIUM HYDROGEN PHTHALATE - Use

Open Data Verified Data

analytical chemistry is often used as a reference material, the calibration of alkali titration solution. Before use, it should be dried at 100~125 ℃ for standby. It is also used to prepare standard buffer solutions. 0. 05moi/L solution, at 25 ℃, the pH value is 4. 008, if mixed with hydrochloric acid in a certain proportion, the pH value range from 2.2 to 5.5 of different buffer systems can be prepared.

Last Update：2022-01-01 09:25:37

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Tel: 15335994747
Email: 3521670276@qq.com
Mobile: 15335994747
QQ: 3521670276

Wechat: A2020071098

Guangzhou Yuanda New Material Co.,Ltd

Multiple Specifications

Product Name: Potassium hydrogen phthalate Request for quotation
CAS: 877-24-7
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589

Wechat: +86 19849939632

Hefei TNJ Chemical Industry Co.,Ltd.

Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog

Shanghai Yuanye Bio-Technology Co., Ltd.

Multiple SpecificationsSpot supply

Product Name: Potassium hydrogen phthalate Visit Supplier Webpage Request for quotation
CAS: 877-24-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409

Wechat: 18301782025

Zouping Mingxing Chemical Co., Ltd.

Product Name: Potassium hydrogen phthalate Request for quotation
CAS: 877-24-7
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987

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POTASSIUM HYDROGEN PHTHALATE

Raw Materials for POTASSIUM HYDROGEN PHTHALATE

Potassium hydroxide
Potassium hydroxide
Phthalic anhydride

POTASSIUM HYDROGEN PHTHALATE

Potassium hydrogen phthalate

CAS: 877-24-7

Molecular Formula: C8H5KO4

POTASSIUM HYDROGEN PHTHALATE - Names and Identifiers

POTASSIUM HYDROGEN PHTHALATE - Physico-chemical Properties

POTASSIUM HYDROGEN PHTHALATE - Risk and Safety