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煙酸

CAS號(hào)	59-67-6
規(guī)格	25千克/桶	純度	工業(yè)級(jí)99.9%
貨號(hào)	ZHYY002	貨期	現(xiàn)貨
品牌	中涵藥業(yè)	庫(kù)存	100ton
規(guī)格	25千克/桶
純度	工業(yè)級(jí)99.9%
貨號(hào)	ZHYY002
貨期	現(xiàn)貨
品牌	中涵藥業(yè)
庫(kù)存	100ton
注意：請(qǐng)務(wù)必與賣家聯(lián)系核實(shí)單價(jià)庫(kù)存，以確保您的資金安全及交易順利。
參考價(jià)：￥53.00 元/千克

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貨號(hào)	品牌	純度	規(guī)格	參考價(jià)	貨期
ZHYY002	中涵藥業(yè)	工業(yè)級(jí)99.9%	25千克/桶	￥53.00元/千克	現(xiàn)貨

產(chǎn)品詳情

詳細(xì)信息(中文)：
煙酸(59-67-6)的性質(zhì)如下： 1、熔點(diǎn)234-237℃。 2、白色結(jié)晶或結(jié)晶性粉末，無(wú)臭或稍有臭氣，味微酸。 3、易溶于熱水、熱乙醇、含堿水、丙二醇及氯仿，微溶于水和乙醇，室溫下100mL水可溶解1.6g，不溶于乙醚和酯類溶劑。 4、1%的水溶液PH為3.0-4.0。對(duì)熱、酸、堿均穩(wěn)定。 5、大白鼠經(jīng)口LD505-7g/kg，ADI值不作特殊規(guī)定(ECC，1990)。白色結(jié)晶或結(jié)晶性粉末，無(wú)臭或稍有臭氣，味微酸。熔點(diǎn)234-237℃。易溶于熱水、熱乙醇、含堿水、丙二醇及氯仿，微溶于水和乙醇，室溫下100mL水可溶解1.6g，不溶于乙醚和酯類溶劑。1%的水溶液PH為3.0-4.0。對(duì)熱、酸、堿均穩(wěn)定。大白鼠經(jīng)口LD505-7g/kg，ADI值不作特殊規(guī)定（ECC，1990）白色結(jié)晶或結(jié)晶性粉末，無(wú)臭或稍有臭氣，味微酸。熔點(diǎn)234-237℃。易溶于熱水、熱乙醇、含堿水、丙二醇及氯仿，微溶于水和乙醇，室溫下100mL水可溶解1.6g，不溶于乙醚和酯類溶劑。1%的水溶液PH為3.0-4.0。對(duì)熱、酸、堿均穩(wěn)定。大白鼠經(jīng)口LD505-7g/kg，ADI值不作特殊規(guī)定（ECC，1990）酸度系數(shù)（pka）：

詳細(xì)信息(英文)：
The properties of nicotinic acid (59-67-6) are as follows: 1. Melting point 234-237 ℃. 2. White crystalline or crystalline powder, odorless or slightly smelly, slightly acidic. 3. It is easily soluble in hot water, hot ethanol, alkaline water, propylene glycol and chloroform, slightly soluble in water and ethanol. 100ml of water can dissolve 1.6g at room temperature, but insoluble in ether and ester solvents. 4. The pH of 1% aqueous solution is 3.0-4.0. It is stable to heat, acid and alkali. 5. Rat oral ld505-7g / kg, ADI value is not specified (ECC, 1990). White crystalline or crystalline powder, odorless or slightly smelly, slightly acidic. Melting point 234-237 ℃. It is easily soluble in hot water, hot ethanol, alkaline water, propylene glycol and chloroform, slightly soluble in water and ethanol. 100ml of water can dissolve 1.6g at room temperature, but insoluble in ether and ester solvents. The pH of 1% aqueous solution is 3.0-4.0. It is stable to heat, acid and alkali. Rat oral ld505-7g / kg, ADI value is not specified (ECC, 1990) white crystal or crystalline powder, odorless or slightly smelly, slightly acidic. Melting point 234-237 ℃. It is easily soluble in hot water, hot ethanol, alkaline water, propylene glycol and chloroform, slightly soluble in water and ethanol. 100ml of water can dissolve 1.6g at room temperature, but insoluble in ether and ester solvents. The pH of 1% aqueous solution is 3.0-4.0. It is stable to heat, acid and alkali. Rat oral ld505-7g / kg, ADI value is not specified (ECC, 1990)

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物理化學(xué)性質(zhì)
英文名	3-Pyridinecarboxylic acid
中文名	煙酸
CAS號(hào)	59-67-6	溶解性	Soluble (63 g/L)
分子量	123.11	熔點(diǎn)	121-123 °C
密度	1.293±0.06 g/cm3	沸點(diǎn)	292.5±13.0 °C