다이하이드로아세트 산
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다이하이드로아세트 산 속성
- 녹는점
- 111-113 °C (lit.)
- 끓는 점
- 270 °C (lit.)
- 밀도
- 1.1816 (rough estimate)
- 증기압
- 0.001 hPa (20 °C)
- 굴절률
- 1.4611 (estimate)
- 인화점
- 157°C
- 저장 조건
- Store below +30°C.
- 용해도
- 2g/L
- 물리적 상태
- 미세 결정성 분말
- 산도 계수 (pKa)
- 5.53±0.40(Predicted)
- 색상
- 연한 노란색 또는 크림색
- 수소이온지수(pH)
- 4 (2g/l, H2O, 20℃)
- 수용성
- 500mg/L at 25℃
- Merck
- 14,2865
- BRN
- 6129
- 안정성
- 안정적인. 산화제, 염기, 환원제와 호환되지 않습니다.
- InChIKey
- PGRHXDWITVMQBC-UHFFFAOYSA-N
- LogP
- 0.78 at 20℃
- CAS 데이터베이스
- 520-45-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 22 | ||
| 안전지침서 | 22-26 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | UP8050000 | ||
| 자연 발화 온도 | 336 °C | ||
| TSCA | Yes | ||
| HS 번호 | 29322980 | ||
| 유해 물질 데이터 | 520-45-6(Hazardous Substances Data) | ||
| 독성 | LD50 orally in rats: 1000 mg/kg (Spencer) | ||
| 기존화학 물질 | KE-00123 |
다이하이드로아세트 산 C화학적 특성, 용도, 생산
화학적 성질
Dehydroacetic acid is a white to cream-coloured powder that is only very slightly soluble in water (less than 0.1 %). However, the sodium salt hydrate (CSH7Na04.H20) has a solubility of 33% in water at 25°C, and 48% in propylene glycol. The acid is 22% soluble in acetone, 18% in benzene, and I g dissolves in about 35 ml of ethanol.It is used to reduce pickle bloating, and as a pesticide and preservative for squash and strawberries. Its permissible use level is 65ppm.Dehydroacetic acid is one of the food additives found in red wine and was determined by ultra-fast liquid chromatography-tandem quadrupole mass spectrometry (UFLC-MS/MS).
To assay dehydroacetic acid, add 500 mg to a 250-ml Erlenmeyer flask and dissolve in 75 ml of neutral alcohol. Following the addition of phenolphthalein T.S., titrate with 0.1 N NaOH to a pink end-point that persists for at least 30 s. Each ml of 0.1 N NaOH = 16.82 mg of dehydroacetic acid (National Academy of Sciences, 1963).
Dehydroacetic acid is a synthetic chemical (no plant-based preservatives that meet our efficacy standards currently exist) that is considered to be a low hazard for human health and for the environment.
용도
Dehydroacetic acid (DHS) is used as stabilizer for cosmetic and pharmaceutical products due to its fungicide and bactericide activity, as additive for PVC-stabilizers and for the syntheses of veterinary medicines. Product Data Sheet일반 설명
Dehydroacetic acid is a pyrone derivative, that is typically synthesized by the base-catalyzed dimerization of diketene. It is used as a preservative in pharmaceutical, food and cosmetic products.Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Safety Profile
Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental tumorigenic data. Combustible when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.다이하이드로아세트 산 준비 용품 및 원자재
원자재
아세트초산에틸
아세틸 케텐
Fatty acid ethyl ester
Polymerization inhibitor
톨루엔
Sodium hydroxide-ethanol solution
멘헤이든오일
트리에틸아민
나트륨 에톡시드
벤젠
염산
수산화나트륨
트리에틸렌디아민
퍼몰린
4H-1,3-Oxazin-4-one, 2,3-dihydro-6-methyl-2-thioxo-
준비 용품
다이하이드로아세트 산 공급 업체
글로벌( 422)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34572 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
| airuikechemical co., ltd. | +undefined86-15315557071 |
sales02@airuikechemical.com | China | 994 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15928 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9348 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 |
info@tnjchem.com | China | 2989 | 55 |
| Shanxi Naipu Import and Export Co.,Ltd | +86-13734021967 +8613734021967 |
kaia@neputrading.com | China | 1011 | 58 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |