소르빈산 칼륨

Potassium Sorbate

HCID 23676745CAS 24634-61-5

기본 정보

표준 SMILES
C/C=C/C=C/C(=O)[O-].[K+]
InChIKey
CHHHXKFHOYLYRE-STWYSWDKSA-M
분자식
C6H7KO2
평균 분자량
150.22 g/mol
단동위원소 질량
150.00831095

이름 및 식별자

우선 이름
Potassium Sorbate
IUPAC
potassium (2E,4E)-hexa-2,4-dienoate
현지명
소르빈산 칼륨
영어명
Potassium sorbate
분자식
C6H7KO2
분자량
151.23

이름 및 동의어

POTASSIUM SORBATE24634-61-5Sorbistat potassiumSorbic acid potassium saltBB PowderSorbic acid, potassium saltSorbistat-potassiumpotassium (2E,4E)-hexa-2,4-dienoateSorbistat kFEMA No. 2921Potassium (E,E)-hexa-2,4-dienoate1VPU26JZZ4
이름 더 보기
(E,E)-2,4-헥사디에노산,칼륨염2,4-헥사디에노산,칼륨염,(E,E)-소르비스타트-K소르비스타트-칼륨칼륨-2,4-헥사디에노산염소르브산,칼륨염소르빈산칼륨솔빈산칼륨칼륨소르브산염소르비스타트-K(E,E)-2,4-헥사디에노산,칼륨염칼륨-2,4-헥사포타슘솔베이트소르빈산칼륨e202POTASSIUM SARBATEPOTASSIUM SORBATE GRANULES(E,E)-hexadienoic acid, potassium saltsuanjiaFEMA 2921trans-trans-SoPotassium otassium sorbate
Potassium (E,E)-2,4-hexadienoateDTXSID7027835Ins no.202Potassium (e,e')-sorbateIns-202Potassium sorbate (e 202)2,4-Hexadienoic acid, potassium salt, (2E,4E)-DTXCID207835

데이터베이스 식별자

CAS
24634-61-5、590-00-1
PubChem CID
23676745
DTXSID
DTXSID7027835
ChEMBL
CHEMBL2106930
ChEBI
CHEBI:77868
UNII
1VPU26JZZ4
EC Number
246-376-1、611-771-3、680-685-6
Nikkaji
J1.006E、J837K

물성

구조 계산 물성

극성 표면적
40.1 Ų
수소 결합 공여자 수
0
수소 결합 수용자 수
2
회전 가능 결합 수
2
무거운 원자 수
9

실험 및 물리화학적 성질

OdorCharacteristic odor
Density1.363 at 25 °C/20 °C
Color/Form · 3건

White powder

Crystals

White crystals or powder

Solubility · 5건

Solubility in water at 20 °C: 58.2%; in alcohol: 6.5%

Very soluble in water

Soluble in water at 25 °C

58.5 g in 100 cc water at 25 °C

For more Solubility (Complete) data for POTASSIUM SORBATE (6 total), please visit the HSDB record page.

DecompositionWhen heated to decomposition it emits toxic fumes of K2O.
Melting Point · 2건

for sorbic acidMelting range of sorbic acid isolated by acidification and not recrystallised 133 °C to 135 °C after vacuum drying in a sulphuric acid desiccator

>270 °C (decomposes)

물리화학적 성질

녹는점
270 °C · 270 °C
밀도
1 · 1,361 g/cm3
증기압
1 Pa · <1 Pa (20 °C)
FEMA
2921 · 2921 | POTASSIUM SORBATE
저장 조건
2 · 2-8°C
용해도
2 O: · H2O: 1 M at 20 °C, 투명, 무색 ~ 희미한 노란색

화학적 성질

Potassium sorbate occurs as a white crystalline powder with a faint, characteristic odor.

안전 및 규제

GHS 분류

GHS Classification · 6건

Warning

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement)

This chemical does not meet GHS hazard criteria for 5.4% (90 of 1672) of reports.

유해성 정보

Regulatory Information · 6건

Chemical: 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)-

Regulation (EC) No 178/2002 (amended)

2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

2,4-Hexadienoic acid, potassium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,4-Hexadienoic acid, potassium salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

2004/129/EC, Reg. (EU) 2017/2068

Status: Active Update: 27-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/11008

Other Safety InformationIMAP assessments - 2,4-Hexadienoic acid, potassium salt, (E,E)-: Human health tier I assessment;IMAP assessments - 2,4-Hexadienoic acid, potassium salt, (E,E)-: Environment tier I assessment
Hazards SummaryAn eye irritant; Generally recognized as safe (GRAS) for use in foods; [HSDB] Oral LD50 (rat) = 4340 mg/kg; [ChemIDplus] May cause irritation; [MSDSonline]
FDA Requirements · 3건

Potassium sorbate used as a chemical preservative in food for human consumption is generally recognized as safe when used in accordance with good manufacturing practice.

Potassium sorbate used as a chemical preservative in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.

Substances migrating to food from paper and paperboard products used in food packaging that are generally recognized as safe for their intended use, within section 409 of the Act. Potassium sorbate is included on this list.

Special Reports · 3건

Cosmetic Ingredient Review; Final Report on the Safety Assessment of Sorbic Acid and Potassium Sorbate. J Am Col Toxicol 7 (6): 837-80 (1988)

Food & Drug Research Labs Inc; Scientific Literature Reviews on Generally Recognized as Safe (GRAS) Food Ingredients: Sorbic Acid Derivatives; US NTIS PB Report PBb-223 864: 92 pp (1973).

Cosmetic Ingredient Review; Annual Review of Cosmetic Ingredient Safety Assessments: 2005/2006. International Journal of Toxicology, 27(Suppl. 1): 77-142 (2008)

EPA Safer Chemical · 2건

Chemical: Potassium (E,E)-sorbate; Green circle - The chemical has been verified to be of low concern based on experimental and modeled data.

Chemical: Potassium sorbate; Green circle - The chemical has been verified to be of low concern based on experimental and modeled data.

안전 및 보호

Fire Fighting Procedures · 2건

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide

Advice for firefighters: Wear self contained breathing apparatus for fire fighting if necessary.

Storage Conditions · 2건

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

...Potassium sorbate should be stored @ temp below 100 °F & should not be exposed to light or heat. Containers should be kept closed.

Cleanup Methods · 1건

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions: Do not let product enter drains. Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.

Disposal Methods · 2건

Product: Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber; Contaminated packaging: Dispose of as unused product.

SRP: Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in air, soil or water; effects on animal, aquatic and plant life; and conformance with environmental and public health regulations. If it is possible or reasonable use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination.

Preventive Measures · 4건

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions: Do not let product enter drains.

Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed. Normal measures for preventive fire protection.

Appropriate engineering controls: Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.

Allowable TolerancesAn exemption from the requirement of a tolerance is established for residues of potassium sorbate.

독성 정보

Interactions · 2건

The food additives sodium nitrite and potassium sorbate had cytostatic and cytotoxic effects on in vitro cultured V79 hamster cells and EUE human fibroblasts if administered in an acid environment (pH 4.95). The strong cytotoxic effect of sodium nitrite and that of the combined action of sodium nitrite and potassium sorbate was observed along the inhibition of macromolecular synthesis. In this respect, potassium sorbate was less effective. The decreased plating efficiency of the cells and the inhibition of de novo DNA synthesis induced by these substances aroused the question whether they also have genotoxic effects on V79 cells. Statistical analyses showed that sodium nitrite induced more 6-TG-resistant (6-TGr) mutants as compared to the untreated control. However, this elevation did not correspond to the level of inhibition of DNA synthesis determined during the followed period of time after the removal of the substance. Potassium sorbate and a combination thereof with sodium nitrite, in our experiments, had no mutagenic effects.

Although potassium sorbate (PS), ascorbic acid and ferric or ferrous salts (Fe-salts) are used widely in combination as food additives, the strong reactivity of PS and oxidative potency of ascorbic acid in the presence of Fe-salts might form toxic compounds in food during its deposit and distribution. In the present paper, the reaction mixture of PS, ascorbic acid and Fe-salts was evaluated for mutagenicity and DNA-damaging activity by means of the Ames test and rec-assay. Effective lethality was observed in the rec-assay. No mutagenicity was induced in either Salmonella typhimurium strains TA98 (with or without S-9 mix) or TA100 (with S-9 mix). In contrast, a dose-dependent mutagenic effect was obtained when applied to strain TA100 without S-9 mix. The mutagenic activity became stronger increasing with the reaction period. Furthermore, the reaction products obtained in a nitrogen atmosphere did not show any mutagenic and DNA-damaging activity. PS, ascorbic acid and Fe-salts were inactive when they were used separately. Omission of one component from the mixture of PS, ascorbic acid and Fe-salt turned the reaction system inactive. These results demonstrate that ascorbic acid and Fe-salt oxidized PS and the oxidative products caused mutagenicity and DNA-damaging activity.

Toxicity Summary · 2건

Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org

IDENTIFICATION AND USE: Potassium sorbate forms white crystals or powder with characteristic odor. It is used as preservative and antimicrobial agent for foods, cosmetics, and pharmaceuticals. It has been also used as medication. HUMAN EXPOSURE AND TOXICITY: Formulations containing up to 0.5% sorbic acid and/or potassium sorbate were not significant primary or cumulative irritants and not sensitizers at this test concentration. In humans, a few cases of idiosyncratic intolerances have been reported (non-immunological contact urticaria and pseudo-allergy). ANIMAL STUDIES: Potassium sorbate was practically nontoxic to rats and mice in acute oral toxicity studies. Potassium sorbate at concentrations up to 10% was practically nonirritating to the rabbit's eye. Potassium sorbate have been tested for mutagenic effects using the Ames test, genetic recombination tests, reversion assays, rec assays, tests for chromosomal aberrations, sister chromatid exchanges, and gene mutations. Results have been both positive and negative. Potassium sorbate at 0.1% in the diet or 0.3% in drinking water of rats for up to 100 weeks produced no neoplasms. No teratogenic effects have been observed in pregnant mice and rats administered potassium sorbate.

Human Toxicity Excerpts · 5건

/HUMAN EXPOSURE STUDIES/ In three repeat insult patch tests using a total of 478 subjects, sorbic acid had overall sensitization rates of 0, 0.33, and 0.8%. All the subjects sensitized were inducted with 20% sorbic acid and challenged with 5% sorbic acid. Formulations containing up to 0.5% sorbic acid or 0.15% potassium sorbate were not cumulative irritants or were very mild cumulative irritants. They were not primary irritants and were not sensitizers.

/HUMAN EXPOSURE STUDIES/ An RIPT was conducted using 56 panelists and a facial scrub containing 0.1% potassium sorbate. The formulation was diluted 1 :I00 by weight with distilled water for the study. Eight 24 hr semiocclusive induction patches were applied over a 2 week period to the lateral upper arm of each subject. Reactions were scored at patch removal. After an approximately 2 week rest period, a 24 hr semiocclusive challenge patch was applied to a previously untreated site. Reactions to the challenge patch were graded at patch removal and 24 and 48 hr later. Two slight, transient, questionable erythema reactions were observed during induction. No other reactions were observed during induction or challenge. The facial scrub did not induce dermal irritation or sensitization.

/HUMAN EXPOSURE STUDIES/ The skin irritation and sensitization potential of a facial scrub containing 0.1% potassium sorbate was evaluated in an RIPT with 47 panelists. The formulation was diluted 1 :I00 in distilled water. Eight 24 hr semiocclusive induction patches were applied to the lateral aspect of the upper arms of the subjects over a 2 week period, and reactions were scored on a scale of O-5 at patch removal. After a 2 week rest period, a 24 hr semiocclusive challenge patch was applied, and reactions were scored at patch removal and 24 and 48 hr later. No reactions greater than 2 (moderate erythema) were observed during the induction period, and no reactions at challenge were indicative of sensitization.

/CASE REPORTS/ Occupational contact dermatitis from potassium sorbate in milk transformation plant /described/.

For more Human Toxicity Excerpts (Complete) data for POTASSIUM SORBATE (8 total), please visit the HSDB record page.

Artificial Pollution SourcesPotassium sorbate's production and use as a bacteriostat and preservative in meats, sausage casings, wine(1) and cosmetics(2) may result in its release to the environment through various waste streams(SRC).
Carcinogen ClassificationNo indication of carcinogenicity to humans (not listed by IARC).
Non-Human Toxicity Excerpts · 5건

/LABORATORY ANIMALS: Acute Exposure/ Sorbic acid (in petrolatum) and potassium sorbate (as aqueous solution) at concentrations of 1, 5, and 10% were practically nonirritating and nonirritating, respectively, to the rabbit eye. Formulations containing 0.1% sorbic acid or 0.15% potassium sorbate were nonirritating to the rabbit eye.

/LABORATORY ANIMALS: Acute Exposure/ A 1% aqueous potassium sorbate solution was practically nonirritating to rabbit skin.

/LABORATORY ANIMALS: Subchronic or Prechronic Exposure/ The preservatives benzalkonium chloride (BZC) and potassium sorbate (PS) are widely used, not only for nasal drops, but also for eyedrops and cosmetics. However, there have been many case reports that consider lesions such as dermatitis or conjunctivitis to be the results of irritation induced by BZC or PS. We evaluated the histological changes after the long-term administration of BZC or PS on rat nasal respiratory mucosa. Forty rats were used for the BZC group and 40 rats for PS group. Animals in each group were divided into four subgroups The first subgroup received a low-concentration preservative solution that was commonly used for nasal sprays. The second subgroup received a high-concentration preservative solution that was reported to induce dermatitis in humans. The third and fourth subgroups received a steroid mixed preservative solution of low and high concentrations, respectively. The control group was administrated normal saline. After each group received 1, 2, and 4 weeks of topical administration, the symptomatic and histological changes on hemotoxylin and eosin (H&E) stain were observed. Sneezing and nasal rubbing with forelegs were observed in almost all subgroups by the seventh day of treatment. The preservatives induced nasal lesions, including intraepithelial glandular formation, inflammatory cell infiltration, vascular hyperplasia, and edematous change. The symptomatic and histological changes were pronounced with the prolonged duration of administration. Similar results were observed in the steroid mixed-solution groups. In the PS steroid mixed-solution group, however, symptoms and nasal lesions were reduced with the prolonged duration of administration. It is our finding that even a low-concentration solution of preservative can lead to nasal lesion. Hence there is a strong need to develop both a preservative that can be safely and widely used and a nasal spray without preservatives.

/LABORATORY ANIMALS: Chronic Exposure or Carcinogenicity/ The oral administration of potassium sorbate as 0.1% of the diet or 0.3% of the drinking water for up to 100 weeks produced no neoplasms in rats. No carcinogenic effect was demonstrated by sorbic acid in rats or mice fed diets containing up to 10% sorbic acid for periods of 2 years and 80 weeks, respectively. A diet containing up to 15% sorbic acid has been reported to have a carcinogenic effect in the liver of mice after 88 weeks' administration.

For more Non-Human Toxicity Excerpts (Complete) data for POTASSIUM SORBATE (15 total), please visit the HSDB record page.

규제 정보

Regulatory Information · 6건

Chemical: 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)-

Regulation (EC) No 178/2002 (amended)

2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

2,4-Hexadienoic acid, potassium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,4-Hexadienoic acid, potassium salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

2004/129/EC, Reg. (EU) 2017/2068

Status: Active Update: 27-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/11008

FDA Requirements · 3건

Potassium sorbate used as a chemical preservative in food for human consumption is generally recognized as safe when used in accordance with good manufacturing practice.

Potassium sorbate used as a chemical preservative in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.

Substances migrating to food from paper and paperboard products used in food packaging that are generally recognized as safe for their intended use, within section 409 of the Act. Potassium sorbate is included on this list.

FIFRA RequirementsAn exemption from the requirement of a tolerance is established for residues of potassium sorbate.

안전 데이터

wgk
1
tsca
TSCA listed
rtecs
WG2170000
독성
LD50 orally in Rabbit: 3800 mg/kg
HS 번호
2916 19 95
risk_code
36/37/38-35-22

화학 및 산업

약리 정보

Metabolism/Metabolites · 1건

The results of metabolic studies were that sorbic acid was qualitatively metabolized in the same manner as the saturated or singly unsaturated fatty acids of the same C-atom number. Under normal conditions, sorbic acid was almost completely oxidized to carbon dioxide and water. /Sorbic acid/

MeSH Pharmacological ClassificationSubstances capable of inhibiting, retarding or arresting the process of fermentation, acidification or other deterioration of foods.

용도 및 제조

Uses · 6건

CIR ingredient: Potassium Sorbate

Used as mold and yeast inhibitor and preservative/antioxidant for food; [HSDB]

For potassiuim sorbate (USEPA/OPP Pesticide Code: 075902) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

Reported uses (ppm):;Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994) [Table#3014]

Bacteriostat and preservative in meats, sausage casings, wine, etc.

Preservative and antimicrobial agent for foods, cosmetics, and pharmaceuticals. To improve the characteristics of drying oils. In alkyd type coatings to improve gloss. To improve milling characteristics of cold rubber. /Sorbic acid/

U.S. Production · 3건

2023: 1,000,000 - <2,500,000 lb;2022: 1,000,000 - <2,500,000 lb;2021: 1,000,000 - <2,500,000 lb;2020: 1,000,000 - <2,500,000 lb

2023: 422,385 lb;2022: 300,675 lb;2021: 283,845 lb;2020: 273,206 lb

Non-confidential 2012 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: 2,4-Hexadienoic acid, potassium salt. National Production Volume: 100,000 - 500,000 lb/yr.

Consumer Uses · 2건

Preservative;Soil amendments (fertilizers);Not Known or Reasonably Ascertainable

Preservative;Not Known or Reasonably Ascertainable

Industry Uses · 2건

Soil amendments (fertilizers);Not Known or Reasonably Ascertainable;Preservative

Preservative;Not Known or Reasonably Ascertainable

Methods of Manufacturing · 2건

Preparation: O. Probst, H. Oehme, United States of America patent 3173948 (1965 to Hoechst).

Sorbic acid is reacted with an equimolar portion of KOH. The resulting potassium sorbate may be crystallized from aqueous ethanol.

Formulations/Preparations · 2건

It is sold commercially as a white powder and in granulated form.

Grades: Technical, FCC /Food Chemical Codex/

응용 분야 · 3건

개요Potassium sorbate is a white crystalline powder. It is a potassium salt of sorbic acid.It was originally discovered in the 1850’s, and was derived from the Mountain Ash Tree. Today, potassium sorbate is synthetically created.Potassium sorbate is a good food preservatives, fully degradable, similar to fatty acids found naturally in foods. It is used to slow the growth of molds and yeasts in foods. It is commonly found in margarine, wines, cheeses, yogurts, soft drinks, and baked goods. Potassium sorbate has been used has a food preservative for many years. There have been extensive long-term tests that have confirmed its safety and it is on the Center for Science in the Public Interest list of safe additives.

용도Sorbic acid and its potassium salt is commonly employed as food preservative in wide range of foodstuffs, such as cheese, pickles, sauces and wines. Potassium sorbate is a food grade preservative generally regarded as safe (GRAS) worldwide. It is the inactive salt of sorbic acid. It readily dissolves in water where it converts to sorbic acid, its active form, at a low pH. Sorbic acid is very pH dependent. While it shows some activity up to pH 6 (about 6%), it is most active at pH 4.4 (70%). At pH 5.0 it is 37% active. As sorbic acid, it is considered to be active against mold, fair against yeast and poor against most bacteria. Sorbic acid is an unsaturated fatty acid and as such is subject to oxidation (use of an antioxidant like Mixed Tocopherols T50 is recommended). It is also sensitive to UV light and may turn yellow in solution. Gluconolactone is reported to stabilize potassium sorbate against discoloration and darkening in aqueous solutions and may be useful in stabilizing sorbic acid in the water phase of a product.

일반 설명Sorbates have been reported to be less toxic than benzoate and have been classified as “Generally Recognized as Safe” (GRAS) additives by the U.S. Food and Drug Administration (FDA).Sorbic acid is metabolised to mainly to carbon dioxide. While the minor amounts are converted to trans,trans-muconic acid (ttMA), which is excreted unchanged into the urine. Urinary ttMA is a biomarker for the occupational and environmental exposure to benzene. Ability of trans,trans-2,4-Hexadienoic acid potassium salt (Sorbic acid potassium salt, Potassium sorbate) to induce chromosome aberrations, sister chromatid exchanges (SCE) and gene mutations in cultured Chinese hamster V79 cells has been examined.Potassium sorbate is reported to be less genotoxic than the sodium salt analog.

제조 방법

Potassium sorbate is prepared by reacting potassium hydroxide with sorbic acid, followed by evaporation and crystallization:CH3CH=CHCH=CHCOOH + KOH →CH3CH=CHCH=CHCOOK + H2O.

생산 방법Potassium sorbate is prepared from sorbic acid and potassium hydroxide.

공급사50 곳

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순도시험(1) 용상 : 이 품목 0.2g을 물 5mL에 녹일 때, 이 액의 색은 비색표준용액 F보다 진하여서는 아니 된다. (2) 유리알칼리 : 이 품목 1g을 새로 끓여서 식힌 물 20mL에 녹이고 페놀프탈레인시액 2방울을 가할 때 홍색을 나타내어도 그 색은 0.1N 황산 0.4mL를 가할 때 없어져야 한다. (3) 염화물 : 이 품목 1g을 물 약 30mL에 녹이고 잘 흔들어 섞으면서 묽은질산 11mL를 가하여 여과하고 물로 씻은 다음 그 씻은 액을 여액에 합쳐 이를 시험용액으로 하여 염화물시험법에 따라 시험할 때, 그 양은 0.01N 염산 0.5mL에 대응하는 양 이하이어야 한다. (4) 황산염 : 이 품목 0.5g을 물 약 30mL에 녹이고 잘 흔들어 섞으면서 묽은염산 3mL를 가하여 여과하고 물로 씻은 다음 그 씻은 액을 여액에 합쳐 이를 시험용액으로 하여 황산염시험법에 따라 시험할 때, 그 양은 0.01N 황산 0.4mL에 대응하는 양 이하이어야 한다. (5) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다. (6) 납 : 이 품목 5.0g을 취하여 원자흡광광도법 또는 유도결합플라즈마발광광도법에 따라 시험할 때, 그 양은 2.0ppm 이하이어야 한다. (7) 수은 : 이 품목을 수은시험법에 따라 시험할 때, 그 양은 1.0ppm 이하이어야 한다. (8) 알데히드 : 이 품목 3.0g에 물 약 450mL를 가하고 염산(1→12)을 이용하여 pH 4로 조정한 다음 다시 물을 가하여 500mL로 하고 이를 여과한 액을 시험용액으로 한다. 따로, 포름알데히드액(40%) 2.5mL에 물을 가하여 1,000mL로 하고 다시 이 액 3mL를 정확히 취한 다음 물을 가하여 500mL로 한 액을 대조액으로 한다. 시험용액 및 대조액 각 5mL에 푹신아황산시액 2.5mL씩을 가해주고 15~30분 방치할 때, 시험용액의 색은 대조액의 색보다 진하여서는 아니 된다(포름알데히드로서 0.1% 이하).

확인시험(1) 이 품목의 수용액(1→100) 1mL에 아세톤 1mL를 가하고 이에 묽은염산을 적가하여 약산성으로 한 다음 브롬시액 2방울을 가하여 흔들어 섞으면 시액의 색은 곧 없어진다. (2) 이 품목은 확인시험법 중 칼륨염의 반응을 나타낸다.

정량법이 품목을 건조한 다음 약 0.3g을 정밀히 달아 빙초산(비수적정용) 50mL를 가하고 0.1N 과염소산용액으로 적정한다(지시약 : α-나프톨벤제인시액 10방울). 종말점은 액의 갈색이 녹색으로 변하는 점으로 한다.0.1N 과염소산용액 1mL = 15.02mg C6H7O2K

정의ChEBI: A potassium salt having sorbate as the counterion.

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