Formic Acid (CAS # 64-18-6)

Chemical Property:

Molecular Formula	CH2O 2
Molar Mass	46.03 Nws
Qhov ntom	1.22 g / mL ntawm 25 ° C (lit.)
Melting Point	8.2-8.4 ° C (lit.)
Boling Point	100-101 ° C (lit.)
Flash Point	133 ° F
JECFA Number	79
Dej Solubility	MISCIBLE
Solubility	H2O: soluble 1g / 10 mL, ntshiab, tsis muaj xim
Vapor Siab	52 hli Hg (37 ° C)
Vapor Density	1.03 (vs huab cua)
Qhov tshwm sim	Ua kua
Specific Gravity	1.216 (20 ℃ / 20 ℃)
Xim	PIB: ≤15
Exposure Limit	TLV-TWA 5 ppm (～9 mg/m3) (ACGIH, MSHA, OSHA, and NIOSH); IDLH 100ppm (180 mg/m3) (NIOSH).
Qhov siab tshaj plaws wavelength (λmax)	['λ: 260 nm Amax: 0.03', , 'λ: 280 nm Amax: 0.01']
Merck	14 Ib., 4241
BRN	1209246 ib
pKa	3.75 (ntawm 20 ℃)
PH	3.47 (1 mM tov); 2.91 (10 mM tov); 2.38 (100 mM tov);
Kev cia khoom	2-8 ° C
Kev ruaj ntseg	ruaj khov. Cov tshuaj uas yuav tsum tau zam muaj xws li cov hauv paus muaj zog, muaj zog oxidizing cov neeg ua haujlwm thiab cov hmoov hlau, furfuryl cawv. Hluav taws kub. Hygroscopic. Lub siab tuaj yeem tsim nyob rau hauv cov fwj kaw ntom ntom,,
rhiab heev	Hygroscopic
Explosive txwv	12-38% (V)
Refractive Index	N20/D 1.377
Physical thiab Chemical Properties	Cov yam ntxwv ntawm Colorless fuming flammable kua, nrog ib tug muaj zog pungent tsw. melting point 8.4 ℃ Kub taw tes 100.7 ℃ txheeb ze ntom ntom 1.220 Refractive Index 1.3714 flash point 69 ℃ solubility: soluble nyob rau hauv dej, ethanol thiab ether, me ntsis soluble nyob rau hauv benzene.
Siv	Rau kev npaj ntawm formate, formate, formamide, thiab lwm yam, tab sis kuj nyob rau hauv cov tshuaj, luam ntawv thiab dyeing, dyes, tawv thiab lwm yam lag luam muaj ib tug tej yam kev siv.

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Risk Codes	R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos. R34 - Ua rau kub hnyiab R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij R35 - Ua rau kub hnyiab heev R36/38 - Kab mob rau qhov muag thiab tawv nqaij. R10 - Flammable
Kev nyab xeeb piav qhia	S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S23 - Tsis txhob ua pa. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
UN IDs	UN 1198 3/PG 3
WGK Germany	2
RTECS	ib 8925000
FLUKA BRAND F CODE	10
TSCA	Yog lawm
HS Code	29 151 00 Nws
Hazard Class	8
Packing Group	II
Toxicity	LD50 hauv nas (mg / kg): 1100 qhov ncauj; 145 IV (UA)

Taw qhia

formic acid) yog cov kua tsis muaj xim uas muaj ntxhiab tsw. Cov nram qab no yog cov khoom tseem ceeb ntawm formic acid:

Lub cev muaj zog: Formic acid yog soluble heev thiab soluble hauv dej thiab feem ntau cov kuab tshuaj organic.

Cov khoom siv tshuaj: Formic acid yog ib qho kev txo qis uas yooj yim oxidized rau carbon dioxide thiab dej. Lub compound reacts nrog lub hauv paus muaj zog los tsim formate.

Kev siv tseem ceeb ntawm formic acid yog raws li hauv qab no:

Raws li cov tshuaj tua kab mob thiab tshuaj tua kab mob, formic acid tuaj yeem siv rau hauv kev npaj cov dyes thiab tawv.

Formic acid kuj tseem siv tau los ua cov dej khov yaj thiab cov tshuaj tua kab.

Muaj ob txoj hauv kev los npaj formic acid:

Cov txheej txheem ib txwm: Distillation txoj kev los tsim cov formic acid los ntawm ib nrab oxidation ntawm ntoo.

Txoj kev niaj hnub: formic acid yog npaj los ntawm methanol oxidation.

Kev ceev faj rau kev siv nyab xeeb ntawm formic acid yog raws li hauv qab no:

Formic acid muaj cov ntxhiab tsw thiab corrosive, yog li koj yuav tsum hnav hnab looj tes tiv thaiv thiab tsom iav thaum siv nws.

Tsis txhob nqus cov formic acid vapor lossis hmoov av, thiab xyuas kom muaj cua zoo thaum siv.

Formic acid tuaj yeem ua rau combustion thiab yuav tsum tau khaws cia kom deb ntawm cov khoom siv hluav taws kub thiab hluav taws kub.

Yav dhau los: 2-Phenyl-2-Butenal (CAS # 4411-89-6)

Tom ntej: Tom ntej: Sodium Hyaluronate CAS # 9067-32-7